https://community.element14.com/challenges-projects/element14-presents/project-videos/w/documents/28300/mastering-oven-control-precision-resin-curing-with-diy-modifications---how-hard-can-it-be----episode-616en-USTelligent Community 12https://community.element14.com/challenges-projects/element14-presents/project-videos/w/documents/28300/mastering-oven-control-precision-resin-curing-with-diy-modifications---how-hard-can-it-be----episode-616Fri, 18 Aug 2023 07:24:00 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:99029710-e77c-497b-a33a-7eb62da7a5b3Matthttps://community.element14.com/challenges-projects/element14-presents/project-videos/w/documents/28300/mastering-oven-control-precision-resin-curing-with-diy-modifications---how-hard-can-it-be----episode-616#commentsCurrent Revision posted to Documents by Matt on 8/18/2023 7:24:00 AM<br /> <p><span data-contrast="auto">In this&nbsp;element14&nbsp;presents episode, Katie tackles the challenge of revamping a budget-friendly toaster oven&nbsp;and transforming it&nbsp;into a dependable resin-curing tool with precise temperature control. She begins by explaining her need for clear epoxy resin with specific curing requirements,&nbsp;as well as&nbsp;the dilemma she faces&nbsp;regarding&nbsp;temperature settings. Intrigued by the &#39;for best results&#39; instructions and a desire to reduce the curing time, Katie turns to an economical toaster oven she found online. Although acknowledging its lower quality, she hopes to&nbsp;modify&nbsp;it for her purpose.</span><span>&nbsp;</span></p> <h2><span>Watch the Video:</span></h2> <p><a href="https://www.youtube.com/watch?v=SYLMBWT7028&amp;feature=youtu.be">www.youtube.com/watch</a></p> <p><span data-contrast="auto">Katie&#39;s attention shifts to the toaster oven&#39;s temperature control mechanism, which she suspects might not accurately reflect the actual temperature output. The oven&#39;s operation involves adjusting the desired temperature and time, but Katie aims for more accuracy. To address this, she opts for a Raspberry Pi Pico and a spare thermistor. However, the thermistor&#39;s leads fall short of reaching outside the oven,&nbsp;necessitating&nbsp;soldering. Since the solder&#39;s melting point is near the curing temperature, Katie&nbsp;anticipates&nbsp;potential connection challenges.</span><span>&nbsp;</span></p> <p><span>&nbsp;<img alt="image" style="max-height:360px;max-width:640px;" src="/resized-image/__size/1280x720/__key/communityserver-wikis-components-files/00-00-00-03-81/vlcsnap_2D00_2023_2D00_08_2D00_09_2D00_17h08m53s124.png" /></span></p> <p><span data-contrast="auto">The project&#39;s crucial stages encompass adapting a kitchen thermometer probe for precise temperature measurement and managing the oven&#39;s heating elements. Katie delves into the inner workings of the toaster oven, discovering the series connection between the timer and temperature control. She plans to replace the original control system with her design, integrating an Omron power relay to handle mains voltage switching. She acknowledges the requirement for a&nbsp;separate&nbsp;24V power supply for the relay coil.</span><span>&nbsp;</span></p> <p><span>&nbsp;<img loading="lazy" alt="image" style="max-height:360px;max-width:640px;" src="/resized-image/__size/1280x720/__key/communityserver-wikis-components-files/00-00-00-03-81/vlcsnap_2D00_2023_2D00_08_2D00_09_2D00_17h09m07s966.png" /></span></p> <p><span data-contrast="auto">Constructing a detailed circuit and programming the Raspberry Pi Pico are fundamental steps in Katie&#39;s project. She successfully incorporates temperature readouts, buttons for setting and&nbsp;initiating&nbsp;oven functions, and a relay for heating element control. During testing, Katie&nbsp;observes&nbsp;that the temperature&nbsp;remains&nbsp;within a 10-degree range of the set value, marking a significant improvement over the original controller. Impressed with the results, she highlights the potential for wider applications beyond resin curing.</span><span>&nbsp;</span></p> <p><span>&nbsp;<img loading="lazy" alt="image" style="max-height:360px;max-width:640px;" src="/resized-image/__size/1280x720/__key/communityserver-wikis-components-files/00-00-00-03-81/vlcsnap_2D00_2023_2D00_08_2D00_09_2D00_17h09m17s044.png" /></span></p> <p><span data-contrast="auto">Subsequently, Katie addresses practical issues, such as preventing the K-Type&nbsp;thermocouple from&nbsp;coming into contact with&nbsp;grounded metal, which could disrupt temperature readings.&nbsp;She develops a protective insulation approach and further&nbsp;optimizes&nbsp;her control setup. Replacing loose connections with&nbsp;Wago&nbsp;block connectors enhances reliability and safety, mitigating grounding concerns. Throughout her journey, Katie&nbsp;demonstrates&nbsp;resourcefulness in troubleshooting and determination to create a refined and user-friendly DIY solution.</span><span>&nbsp;</span></p> <p><span>&nbsp;<img loading="lazy" alt="image" style="max-height:360px;max-width:640px;" src="/resized-image/__size/1280x720/__key/communityserver-wikis-components-files/00-00-00-03-81/vlcsnap_2D00_2023_2D00_08_2D00_09_2D00_17h09m58s770.png" /></span></p> <p><span data-contrast="auto"></span></p> <p><span data-contrast="auto">Ultimately, Katie successfully crafts a compact and functional control box for her toaster oven project. While acknowledging potential aesthetic improvements, she celebrates her accomplishment in developing a cost-effective and dependable tool for resin curing. She encourages fellow makers to explore this versatile modification, adaptable to various oven systems. Katie&#39;s experience showcases the potential of elevating everyday appliances with technical skills, while also addressing the challenges she overcame in achieving her goal.</span><span>&nbsp;</span></p> <h2 id="mcetoc_1h7suvi4s0">Bonus Content:</h2> <ul> <li>GitHub (Code):&nbsp;<a href="https://github.com/hifromkatie/Toaster-Oven-Controller" rel="noopener noreferrer nofollow" target="_blank" data-e14adj="t">https://github.com/hifromkatie/Toaster-Oven-Controller</a></li> <li><a href="/challenges-projects/element14-presents/secret-element14-presents/m/files/148049" data-e14adj="t">Download Code</a></li> </ul> <h2 id="mcetoc_1h7sv65br2">Bill of Material:</h2> <table class="e14-product-bom-main"> <tbody> <tr> <th>Product Name</th> <th>Manufacturer</th> <th>Quantity</th> <th><a id="e14-product-link-1df24" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="button" href="https://referral.element14.com/OrderCodeView?fsku=3643332,3517948,8598053,1564548~2,2543533,301309,9664505,1832571&nsku=22AJ1097,87AH5903,38K1519,95M7860~2,82Y6564,07WX0678,92K7080,36K1930&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_BUY_KIT" class="e14-embedded e14_shopping-cart-far e14-button" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('1df24'));" data-farnell="3643332,3517948,8598053,1564548~2,2543533,301309,9664505,1832571" data-newark="22AJ1097,87AH5903,38K1519,95M7860~2,82Y6564,07WX0678,92K7080,36K1930" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea=",,,undefined~2,,,," data-avnetema=",,,undefined~2,,,," data-avnetasia=",,,undefined~2,,,," >Buy Kit</a> </th> </tr> <tr> <td>RASPBERRY PI PICO</td> <td>RASPBERRY-PI</td> <td>1</td> <td><a id="e14-product-link-8442d" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="button" href="https://referral.element14.com/OrderCodeView?fsku=3643332&nsku=22AJ1097&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-button" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('8442d'));" data-farnell="3643332" data-newark="22AJ1097" data-comoverride="" data-cmpoverride="" data-cpc="SC17106" data-avnetemea="undefined" data-avnetema="undefined" data-avnetasia="undefined" >Buy Now</a> </td> </tr> <tr> <td>High Temperature Sensor, Gravity, I2C, K-Type, 800℃, for Arduino and Raspberry Pi Board</td> <td>DFROBOT</td> <td>1</td> <td><a id="e14-product-link-f2bee" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="button" href="https://referral.element14.com/OrderCodeView?fsku=3517948&nsku=87AH5903&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-button" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('f2bee'));" data-farnell="3517948" data-newark="87AH5903" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="undefined" data-avnetema="undefined" data-avnetasia="undefined" >Buy Now</a> </td> </tr> <tr> <td>Thermocouple, Nozzle, K, 0 &deg;C, 350 &deg;C, Stainless Steel, 6.6 ft, 2 m</td> <td>LABFACILITY</td> <td>1</td> <td><a id="e14-product-link-9d6bb" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="button" href="https://referral.element14.com/OrderCodeView?fsku=8598053&nsku=38K1519&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-button" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('9d6bb'));" data-farnell="8598053" data-newark="38K1519" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="undefined" data-avnetema="undefined" data-avnetasia="undefined" >Buy Now</a> </td> </tr> <tr> <td>GROMMET, BLACK M20 PK50</td> <td>PRO POWER</td> <td>2</td> <td><a id="e14-product-link-07d04" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="button" href="https://referral.element14.com/OrderCodeView?fsku=1564548&nsku=95M7860&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-button" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('07d04'));" data-farnell="1564548" data-newark="95M7860" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="undefined" data-avnetema="undefined" data-avnetasia="undefined" >Buy Now</a> </td> </tr> <tr> <td>Power MOSFET, P Channel, 20 V, 4.2 A, 0.04 ohm, SOT-23, Surface Mount</td> <td>DIODES INC.</td> <td>1</td> <td><a id="e14-product-link-970d4" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="button" href="https://referral.element14.com/OrderCodeView?fsku=2543533&nsku=82Y6564&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-button" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('970d4'));" data-farnell="2543533" data-newark="82Y6564" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="undefined" data-avnetema="undefined" data-avnetasia="undefined" >Buy Now</a> </td> </tr> <tr> <td>Plastic Enclosure, Box, With Lid, Multipurpose, ABS, 83.1 mm, 177 mm, 120 mm</td> <td>MULTICOMP PRO</td> <td>1</td> <td><a id="e14-product-link-bdc2c" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="button" href="https://referral.element14.com/OrderCodeView?fsku=301309&nsku=07WX0678&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-button" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('bdc2c'));" data-farnell="301309" data-newark="07WX0678" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="undefined" data-avnetema="undefined" data-avnetasia="undefined" >Buy Now</a> </td> </tr> <tr> <td>IC, V REG +5.0V, 7805, TO-220-3</td> <td>ONSEMI</td> <td>1</td> <td><a id="e14-product-link-eb0b2" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="button" href="https://referral.element14.com/OrderCodeView?fsku=9664505&nsku=92K7080&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-button" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('eb0b2'));" data-farnell="9664505" data-newark="92K7080" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="undefined" data-avnetema="undefined" data-avnetasia="undefined" >Buy Now</a> </td> </tr> <tr> <td>Power Relay, SPST-NO, 24 VDC, 10 A, G2R Series, Through Hole, Non Latching</td> <td>OMRON ELECTRONIC COMPONENTS</td> <td>1</td> <td><a id="e14-product-link-8373f" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="button" href="https://referral.element14.com/OrderCodeView?fsku=1832571&nsku=36K1930&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-button" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('8373f'));" data-farnell="1832571" data-newark="36K1930" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="undefined" data-avnetema="undefined" data-avnetasia="undefined" >Buy Now</a> </td> </tr> <tr class="xs-hide"> <td>&nbsp;</td> <td></td> <td></td> <td></td> </tr> </tbody> </table> <h2 id="mcetoc_1h7sveeri3">Additional Parts:</h2> <table> <tbody> <tr> <td>Toaster Oven</td> </tr> </tbody> </table> <p></p> <div style="background:#ffffff;border:1px solid #dadada;margin:0;padding:14px 16px 16px 18px;vertical-align:top;"> <div style="display:inline-block;float:left;padding:0px 25px 8px 0px;"><a href="/challengesprojects/element14-presents/" data-e14adj="t"><img loading="lazy" alt="element14 presents" src="/e14/assets/legacy/2018/e14PresentsJune818.png" width="180px" /></a></div> <div style="display:inline-block;vertical-align:top;width:70%;"><br /> <p style="margin:0;"><span><a class="jivecontainerTT-hover-container jive-link-community-small" href="/challengesprojects/element14-presents/" data-e14adj="t">element14 presents</a></span>&nbsp; <strong>|</strong>&nbsp; <a class="jive-link-wiki-small" href="/challengesprojects/element14-presents/vcp-program/w/documents/5024/vcp-biography-katie" data-e14adj="t">About Katie Dumont</a>&nbsp;<span style="padding-right:5px;"></span><strong>|</strong>&nbsp; <a class="jivecontainerTT-hover-container jive-link-community-small" href="/challengesprojects/element14-presents/project-videos/" data-e14adj="t">Project Videos</a></p> <p style="margin:0;"></p> </div> </div><div style="clear:both;"></div> <div style="font-size: 90%;">Tags: e14p_KD, temperature control, raspberry pi pico, oven, friday_release</div> https://community.element14.com/challenges-projects/element14-presents/project-videos/w/documents/28300/mastering-oven-control-precision-resin-curing-with-diy-modifications---how-hard-can-it-be----episode-616/revision/7Wed, 23 Aug 2023 17:23:45 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:99029710-e77c-497b-a33a-7eb62da7a5b3tariq.ahmadhttps://community.element14.com/challenges-projects/element14-presents/project-videos/w/documents/28300/mastering-oven-control-precision-resin-curing-with-diy-modifications---how-hard-can-it-be----episode-616#commentsRevision 7 posted to Documents by tariq.ahmad on 8/23/2023 5:23:45 PM<br /> <p><span data-contrast="auto">In this&nbsp;element14&nbsp;presents episode, Katie tackles the challenge of revamping a budget-friendly toaster oven&nbsp;and transforming it&nbsp;into a dependable resin-curing tool with precise temperature control. She begins by explaining her need for clear epoxy resin with specific curing requirements,&nbsp;as well as&nbsp;the dilemma she faces&nbsp;regarding&nbsp;temperature settings. Intrigued by the &#39;for best results&#39; instructions and a desire to reduce the curing time, Katie turns to an economical toaster oven she found online. Although acknowledging its lower quality, she hopes to&nbsp;modify&nbsp;it for her purpose.</span><span>&nbsp;</span></p> <h2><span>Watch the Video:</span></h2> <p><a href="https://www.youtube.com/watch?v=SYLMBWT7028&amp;feature=youtu.be">www.youtube.com/watch</a></p> <p><span data-contrast="auto">Katie&#39;s attention shifts to the toaster oven&#39;s temperature control mechanism, which she suspects might not accurately reflect the actual temperature output. The oven&#39;s operation involves adjusting the desired temperature and time, but Katie aims for more accuracy. To address this, she opts for a Raspberry Pi Pico and a spare thermistor. However, the thermistor&#39;s leads fall short of reaching outside the oven,&nbsp;necessitating&nbsp;soldering. Since the solder&#39;s melting point is near the curing temperature, Katie&nbsp;anticipates&nbsp;potential connection challenges.</span><span>&nbsp;</span></p> <p><span>&nbsp;<img alt="image" style="max-height:360px;max-width:640px;" src="/resized-image/__size/1280x720/__key/communityserver-wikis-components-files/00-00-00-03-81/vlcsnap_2D00_2023_2D00_08_2D00_09_2D00_17h08m53s124.png" /></span></p> <p><span data-contrast="auto">The project&#39;s crucial stages encompass adapting a kitchen thermometer probe for precise temperature measurement and managing the oven&#39;s heating elements. Katie delves into the inner workings of the toaster oven, discovering the series connection between the timer and temperature control. She plans to replace the original control system with her design, integrating an Omron power relay to handle mains voltage switching. She acknowledges the requirement for a&nbsp;separate&nbsp;24V power supply for the relay coil.</span><span>&nbsp;</span></p> <p><span>&nbsp;<img loading="lazy" alt="image" style="max-height:360px;max-width:640px;" src="/resized-image/__size/1280x720/__key/communityserver-wikis-components-files/00-00-00-03-81/vlcsnap_2D00_2023_2D00_08_2D00_09_2D00_17h09m07s966.png" /></span></p> <p><span data-contrast="auto">Constructing a detailed circuit and programming the Raspberry Pi Pico are fundamental steps in Katie&#39;s project. She successfully incorporates temperature readouts, buttons for setting and&nbsp;initiating&nbsp;oven functions, and a relay for heating element control. During testing, Katie&nbsp;observes&nbsp;that the temperature&nbsp;remains&nbsp;within a 10-degree range of the set value, marking a significant improvement over the original controller. Impressed with the results, she highlights the potential for wider applications beyond resin curing.</span><span>&nbsp;</span></p> <p><span>&nbsp;<img loading="lazy" alt="image" style="max-height:360px;max-width:640px;" src="/resized-image/__size/1280x720/__key/communityserver-wikis-components-files/00-00-00-03-81/vlcsnap_2D00_2023_2D00_08_2D00_09_2D00_17h09m17s044.png" /></span></p> <p><span data-contrast="auto">Subsequently, Katie addresses practical issues, such as preventing the K-Type&nbsp;thermocouple from&nbsp;coming into contact with&nbsp;grounded metal, which could disrupt temperature readings.&nbsp;She develops a protective insulation approach and further&nbsp;optimizes&nbsp;her control setup. Replacing loose connections with&nbsp;Wago&nbsp;block connectors enhances reliability and safety, mitigating grounding concerns. Throughout her journey, Katie&nbsp;demonstrates&nbsp;resourcefulness in troubleshooting and determination to create a refined and user-friendly DIY solution.</span><span>&nbsp;</span></p> <p><span>&nbsp;<img loading="lazy" alt="image" style="max-height:360px;max-width:640px;" src="/resized-image/__size/1280x720/__key/communityserver-wikis-components-files/00-00-00-03-81/vlcsnap_2D00_2023_2D00_08_2D00_09_2D00_17h09m58s770.png" /></span></p> <p><span data-contrast="auto"></span></p> <p><span data-contrast="auto">Ultimately, Katie successfully crafts a compact and functional control box for her toaster oven project. While acknowledging potential aesthetic improvements, she celebrates her accomplishment in developing a cost-effective and dependable tool for resin curing. She encourages fellow makers to explore this versatile modification, adaptable to various oven systems. Katie&#39;s experience showcases the potential of elevating everyday appliances with technical skills, while also addressing the challenges she overcame in achieving her goal.</span><span>&nbsp;</span></p> <h2 id="mcetoc_1h7suvi4s0">Bonus Content:</h2> <ul> <li>GitHub (Code):&nbsp;<a href="https://github.com/hifromkatie/Toaster-Oven-Controller" data-e14adj="y" rel="noopener noreferrer nofollow" target="_blank">https://github.com/hifromkatie/Toaster-Oven-Controller</a></li> <li><a href="/challenges-projects/element14-presents/secret-element14-presents/m/files/148049" data-e14adj="y">Download Code</a></li> </ul> <h2 id="mcetoc_1h7sv65br2">Bill of Material:</h2> <table class="e14-product-bom-main"> <tbody> <tr> <th>Product Name</th> <th>Manufacturer</th> <th>Quantity</th> <th><a id="e14-product-link-4a448" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="button" href="https://referral.element14.com/OrderCodeView?fsku=3643332,3517948,8598053,1564548~2,2543533,301309,9664505,1832571&nsku=22AJ1097,87AH5903,38K1519,95M7860~2,82Y6564,07WX0678,92K7080,36K1930&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_BUY_KIT" class="e14-embedded e14_shopping-cart-far e14-button" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('4a448'));" data-farnell="3643332,3517948,8598053,1564548~2,2543533,301309,9664505,1832571" data-newark="22AJ1097,87AH5903,38K1519,95M7860~2,82Y6564,07WX0678,92K7080,36K1930" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea=",,,undefined~2,,,," data-avnetema=",,,undefined~2,,,," data-avnetasia=",,,undefined~2,,,," >Buy Kit</a> </th> </tr> <tr> <td>RASPBERRY PI PICO</td> <td>RASPBERRY-PI</td> <td>1</td> <td><a id="e14-product-link-bcbf1" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="button" href="https://referral.element14.com/OrderCodeView?fsku=3643332&nsku=22AJ1097&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-button" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('bcbf1'));" data-farnell="3643332" data-newark="22AJ1097" data-comoverride="" data-cmpoverride="" data-cpc="SC17106" data-avnetemea="undefined" data-avnetema="undefined" data-avnetasia="undefined" >Buy Now</a> </td> </tr> <tr> <td>High Temperature Sensor, Gravity, I2C, K-Type, 800℃, for Arduino and Raspberry Pi Board</td> <td>DFROBOT</td> <td>1</td> <td><a id="e14-product-link-4faee" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="button" href="https://referral.element14.com/OrderCodeView?fsku=3517948&nsku=87AH5903&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-button" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('4faee'));" data-farnell="3517948" data-newark="87AH5903" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="undefined" data-avnetema="undefined" data-avnetasia="undefined" >Buy Now</a> </td> </tr> <tr> <td>Thermocouple, Nozzle, K, 0 &deg;C, 350 &deg;C, Stainless Steel, 6.6 ft, 2 m</td> <td>LABFACILITY</td> <td>1</td> <td><a id="e14-product-link-f2ca0" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="button" href="https://referral.element14.com/OrderCodeView?fsku=8598053&nsku=38K1519&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-button" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('f2ca0'));" data-farnell="8598053" data-newark="38K1519" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="undefined" data-avnetema="undefined" data-avnetasia="undefined" >Buy Now</a> </td> </tr> <tr> <td>GROMMET, BLACK M20 PK50</td> <td>PRO POWER</td> <td>2</td> <td><a id="e14-product-link-b6f3a" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="button" href="https://referral.element14.com/OrderCodeView?fsku=1564548&nsku=95M7860&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-button" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('b6f3a'));" data-farnell="1564548" data-newark="95M7860" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="undefined" data-avnetema="undefined" data-avnetasia="undefined" >Buy Now</a> </td> </tr> <tr> <td>Power MOSFET, P Channel, 20 V, 4.2 A, 0.04 ohm, SOT-23, Surface Mount</td> <td>DIODES INC.</td> <td>1</td> <td><a id="e14-product-link-fa026" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="button" href="https://referral.element14.com/OrderCodeView?fsku=2543533&nsku=82Y6564&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-button" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('fa026'));" data-farnell="2543533" data-newark="82Y6564" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="undefined" data-avnetema="undefined" data-avnetasia="undefined" >Buy Now</a> </td> </tr> <tr> <td>Plastic Enclosure, Box, With Lid, Multipurpose, ABS, 83.1 mm, 177 mm, 120 mm</td> <td>MULTICOMP PRO</td> <td>1</td> <td><a id="e14-product-link-8cab6" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="button" href="https://referral.element14.com/OrderCodeView?fsku=301309&nsku=07WX0678&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-button" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('8cab6'));" data-farnell="301309" data-newark="07WX0678" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="undefined" data-avnetema="undefined" data-avnetasia="undefined" >Buy Now</a> </td> </tr> <tr> <td>IC, V REG +5.0V, 7805, TO-220-3</td> <td>ONSEMI</td> <td>1</td> <td><a id="e14-product-link-4af7b" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="button" href="https://referral.element14.com/OrderCodeView?fsku=9664505&nsku=92K7080&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-button" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('4af7b'));" data-farnell="9664505" data-newark="92K7080" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="undefined" data-avnetema="undefined" data-avnetasia="undefined" >Buy Now</a> </td> </tr> <tr> <td>Power Relay, SPST-NO, 24 VDC, 10 A, G2R Series, Through Hole, Non Latching</td> <td>OMRON ELECTRONIC COMPONENTS</td> <td>1</td> <td><a id="e14-product-link-92fa3" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="button" href="https://referral.element14.com/OrderCodeView?fsku=1832571&nsku=36K1930&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-button" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('92fa3'));" data-farnell="1832571" data-newark="36K1930" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="undefined" data-avnetema="undefined" data-avnetasia="undefined" >Buy Now</a> </td> </tr> <tr class="xs-hide"> <td>&nbsp;</td> <td></td> <td></td> <td></td> </tr> </tbody> </table> <h2 id="mcetoc_1h7sveeri3">Additional Parts:</h2> <table> <tbody> <tr> <td>Toaster Oven</td> </tr> </tbody> </table> <p></p> <div style="background:#ffffff;border:1px solid #dadada;margin:0;padding:14px 16px 16px 18px;vertical-align:top;"> <div style="display:inline-block;float:left;padding:0px 25px 8px 0px;"><a href="/challengesprojects/element14-presents/" data-e14adj="y"><img loading="lazy" alt="element14 presents" src="/e14/assets/legacy/2018/e14PresentsJune818.png" width="180px" /></a></div> <div style="display:inline-block;vertical-align:top;width:70%;"><br /> <p style="margin:0;"><span><a class="jivecontainerTT-hover-container jive-link-community-small" href="/challengesprojects/element14-presents/" data-e14adj="y">element14 presents</a></span>&nbsp; <strong>|</strong>&nbsp; <a class="jive-link-wiki-small" href="/challengesprojects/element14-presents/vcp-program/w/documents/5024/vcp-biography-katie" data-e14adj="y">About Katie Dumont</a>&nbsp;<span style="padding-right:5px;"></span><strong>|</strong>&nbsp; <a class="jivecontainerTT-hover-container jive-link-community-small" href="/challengesprojects/element14-presents/project-videos/" data-e14adj="y">Project Videos</a></p> <p style="margin:0;"></p> </div> </div><div style="clear:both;"></div> <div style="font-size: 90%;">Tags: e14p_KD, temperature control, raspberry pi pico, oven, friday_release</div> https://community.element14.com/challenges-projects/element14-presents/project-videos/w/documents/28300/mastering-oven-control-precision-resin-curing-with-diy-modifications---how-hard-can-it-be----episode-616/revision/5Thu, 17 Aug 2023 15:04:02 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:99029710-e77c-497b-a33a-7eb62da7a5b3tariq.ahmadhttps://community.element14.com/challenges-projects/element14-presents/project-videos/w/documents/28300/mastering-oven-control-precision-resin-curing-with-diy-modifications---how-hard-can-it-be----episode-616#commentsRevision 5 posted to Documents by tariq.ahmad on 8/17/2023 3:04:02 PM<br /> <p><span data-contrast="auto">In this&nbsp;element14&nbsp;presents episode, Katie tackles the challenge of revamping a budget-friendly toaster oven&nbsp;and transforming it&nbsp;into a dependable resin-curing tool with precise temperature control. She begins by explaining her need for clear epoxy resin with specific curing requirements,&nbsp;as well as&nbsp;the dilemma she faces&nbsp;regarding&nbsp;temperature settings. Intrigued by the &#39;for best results&#39; instructions and a desire to reduce the curing time, Katie turns to an economical toaster oven she found online. Although acknowledging its lower quality, she hopes to&nbsp;modify&nbsp;it for her purpose.</span><span>&nbsp;</span></p> <p><a href="https://www.youtube.com/watch?v=SYLMBWT7028&amp;feature=youtu.be">www.youtube.com/watch</a></p> <p><span data-contrast="auto">Katie&#39;s attention shifts to the toaster oven&#39;s temperature control mechanism, which she suspects might not accurately reflect the actual temperature output. The oven&#39;s operation involves adjusting the desired temperature and time, but Katie aims for more accuracy. To address this, she opts for a Raspberry Pi Pico and a spare thermistor. However, the thermistor&#39;s leads fall short of reaching outside the oven,&nbsp;necessitating&nbsp;soldering. Since the solder&#39;s melting point is near the curing temperature, Katie&nbsp;anticipates&nbsp;potential connection challenges.</span><span>&nbsp;</span></p> <p><span>&nbsp;<img alt="image" style="max-height:360px;max-width:640px;" src="/resized-image/__size/1280x720/__key/communityserver-wikis-components-files/00-00-00-04-35/vlcsnap_2D00_2023_2D00_08_2D00_09_2D00_17h08m53s124.png" /></span></p> <p><span data-contrast="auto">The project&#39;s crucial stages encompass adapting a kitchen thermometer probe for precise temperature measurement and managing the oven&#39;s heating elements. Katie delves into the inner workings of the toaster oven, discovering the series connection between the timer and temperature control. She plans to replace the original control system with her design, integrating an Omron power relay to handle mains voltage switching. She acknowledges the requirement for a&nbsp;separate&nbsp;24V power supply for the relay coil.</span><span>&nbsp;</span></p> <p><span>&nbsp;<img loading="lazy" alt="image" style="max-height:360px;max-width:640px;" src="/resized-image/__size/1280x720/__key/communityserver-wikis-components-files/00-00-00-04-35/vlcsnap_2D00_2023_2D00_08_2D00_09_2D00_17h09m07s966.png" /></span></p> <p><span data-contrast="auto">Constructing a detailed circuit and programming the Raspberry Pi Pico are fundamental steps in Katie&#39;s project. She successfully incorporates temperature readouts, buttons for setting and&nbsp;initiating&nbsp;oven functions, and a relay for heating element control. During testing, Katie&nbsp;observes&nbsp;that the temperature&nbsp;remains&nbsp;within a 10-degree range of the set value, marking a significant improvement over the original controller. Impressed with the results, she highlights the potential for wider applications beyond resin curing.</span><span>&nbsp;</span></p> <p><span>&nbsp;<img loading="lazy" alt="image" style="max-height:360px;max-width:640px;" src="/resized-image/__size/1280x720/__key/communityserver-wikis-components-files/00-00-00-04-35/vlcsnap_2D00_2023_2D00_08_2D00_09_2D00_17h09m17s044.png" /></span></p> <p><span data-contrast="auto">Subsequently, Katie addresses practical issues, such as preventing the K-Type&nbsp;thermocouple from&nbsp;coming into contact with&nbsp;grounded metal, which could disrupt temperature readings.&nbsp;She develops a protective insulation approach and further&nbsp;optimizes&nbsp;her control setup. Replacing loose connections with&nbsp;Wago&nbsp;block connectors enhances reliability and safety, mitigating grounding concerns. Throughout her journey, Katie&nbsp;demonstrates&nbsp;resourcefulness in troubleshooting and determination to create a refined and user-friendly DIY solution.</span><span>&nbsp;</span></p> <p><span>&nbsp;<img loading="lazy" alt="image" style="max-height:360px;max-width:640px;" src="/resized-image/__size/1280x720/__key/communityserver-wikis-components-files/00-00-00-04-35/vlcsnap_2D00_2023_2D00_08_2D00_09_2D00_17h09m58s770.png" /></span></p> <p><span data-contrast="auto"></span></p> <p><span data-contrast="auto">Ultimately, Katie successfully crafts a compact and functional control box for her toaster oven project. While acknowledging potential aesthetic improvements, she celebrates her accomplishment in developing a cost-effective and dependable tool for resin curing. She encourages fellow makers to explore this versatile modification, adaptable to various oven systems. Katie&#39;s experience showcases the potential of elevating everyday appliances with technical skills, while also addressing the challenges she overcame in achieving her goal.</span><span>&nbsp;</span></p> <h2 id="mcetoc_1h7suvi4s0">Bonus Content:</h2> <ul> <li>GitHub (Code):&nbsp;<a href="https://github.com/hifromkatie/Toaster-Oven-Controller" data-e14adj="y" rel="noopener noreferrer nofollow" target="_blank">https://github.com/hifromkatie/Toaster-Oven-Controller</a></li> <li><a href="/challenges-projects/element14-presents/secret-element14-presents/m/files/148049" data-e14adj="y">Download Code</a></li> </ul> <h2 id="mcetoc_1h7sv65br2">Bill of Material:</h2> <table class="e14-product-bom-main"> <tbody> <tr> <th>Product Name</th> <th>Manufacturer</th> <th>Quantity</th> <th><a id="e14-product-link-64186" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="button" href="https://referral.element14.com/OrderCodeView?fsku=3643332,3517948,8598053,1564548~2,2543533,301309,9664505,1832571&nsku=22AJ1097,87AH5903,38K1519,95M7860~2,82Y6564,07WX0678,92K7080,36K1930&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_BUY_KIT" class="e14-embedded e14_shopping-cart-far e14-button" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('64186'));" data-farnell="3643332,3517948,8598053,1564548~2,2543533,301309,9664505,1832571" data-newark="22AJ1097,87AH5903,38K1519,95M7860~2,82Y6564,07WX0678,92K7080,36K1930" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea=",,,undefined~2,,,," data-avnetema=",,,undefined~2,,,," data-avnetasia=",,,undefined~2,,,," >Buy Kit</a> </th> </tr> <tr> <td>RASPBERRY PI PICO</td> <td>RASPBERRY-PI</td> <td>1</td> <td><a id="e14-product-link-a7a0c" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="button" href="https://referral.element14.com/OrderCodeView?fsku=3643332&nsku=22AJ1097&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-button" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('a7a0c'));" data-farnell="3643332" data-newark="22AJ1097" data-comoverride="" data-cmpoverride="" data-cpc="SC17106" data-avnetemea="undefined" data-avnetema="undefined" data-avnetasia="undefined" >Buy Now</a> </td> </tr> <tr> <td>High Temperature Sensor, Gravity, I2C, K-Type, 800℃, for Arduino and Raspberry Pi Board</td> <td>DFROBOT</td> <td>1</td> <td><a id="e14-product-link-c108f" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="button" href="https://referral.element14.com/OrderCodeView?fsku=3517948&nsku=87AH5903&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-button" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('c108f'));" data-farnell="3517948" data-newark="87AH5903" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="undefined" data-avnetema="undefined" data-avnetasia="undefined" >Buy Now</a> </td> </tr> <tr> <td>Thermocouple, Nozzle, K, 0 &deg;C, 350 &deg;C, Stainless Steel, 6.6 ft, 2 m</td> <td>LABFACILITY</td> <td>1</td> <td><a id="e14-product-link-c07fb" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="button" href="https://referral.element14.com/OrderCodeView?fsku=8598053&nsku=38K1519&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-button" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('c07fb'));" data-farnell="8598053" data-newark="38K1519" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="undefined" data-avnetema="undefined" data-avnetasia="undefined" >Buy Now</a> </td> </tr> <tr> <td>GROMMET, BLACK M20 PK50</td> <td>PRO POWER</td> <td>2</td> <td><a id="e14-product-link-d7400" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="button" href="https://referral.element14.com/OrderCodeView?fsku=1564548&nsku=95M7860&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-button" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('d7400'));" data-farnell="1564548" data-newark="95M7860" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="undefined" data-avnetema="undefined" data-avnetasia="undefined" >Buy Now</a> </td> </tr> <tr> <td>Power MOSFET, P Channel, 20 V, 4.2 A, 0.04 ohm, SOT-23, Surface Mount</td> <td>DIODES INC.</td> <td>1</td> <td><a id="e14-product-link-a3139" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="button" href="https://referral.element14.com/OrderCodeView?fsku=2543533&nsku=82Y6564&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-button" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('a3139'));" data-farnell="2543533" data-newark="82Y6564" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="undefined" data-avnetema="undefined" data-avnetasia="undefined" >Buy Now</a> </td> </tr> <tr> <td>Plastic Enclosure, Box, With Lid, Multipurpose, ABS, 83.1 mm, 177 mm, 120 mm</td> <td>MULTICOMP PRO</td> <td>1</td> <td><a id="e14-product-link-ffe59" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="button" href="https://referral.element14.com/OrderCodeView?fsku=301309&nsku=07WX0678&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-button" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('ffe59'));" data-farnell="301309" data-newark="07WX0678" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="undefined" data-avnetema="undefined" data-avnetasia="undefined" >Buy Now</a> </td> </tr> <tr> <td>IC, V REG +5.0V, 7805, TO-220-3</td> <td>ONSEMI</td> <td>1</td> <td><a id="e14-product-link-9b543" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="button" href="https://referral.element14.com/OrderCodeView?fsku=9664505&nsku=92K7080&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-button" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('9b543'));" data-farnell="9664505" data-newark="92K7080" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="undefined" data-avnetema="undefined" data-avnetasia="undefined" >Buy Now</a> </td> </tr> <tr> <td>Power Relay, SPST-NO, 24 VDC, 10 A, G2R Series, Through Hole, Non Latching</td> <td>OMRON ELECTRONIC COMPONENTS</td> <td>1</td> <td><a id="e14-product-link-b89d5" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="button" href="https://referral.element14.com/OrderCodeView?fsku=1832571&nsku=36K1930&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-button" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('b89d5'));" data-farnell="1832571" data-newark="36K1930" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="undefined" data-avnetema="undefined" data-avnetasia="undefined" >Buy Now</a> </td> </tr> <tr class="xs-hide"> <td>&nbsp;</td> <td></td> <td></td> <td></td> </tr> </tbody> </table> <h2 id="mcetoc_1h7sveeri3">Additional Parts:</h2> <table> <tbody> <tr> <td>Toaster Oven</td> </tr> </tbody> </table> <p></p> <div style="background:#ffffff;border:1px solid #dadada;margin:0;padding:14px 16px 16px 18px;vertical-align:top;"> <div style="display:inline-block;float:left;padding:0px 25px 8px 0px;"><a href="/challengesprojects/element14-presents/" data-e14adj="y"><img loading="lazy" alt="element14 presents" src="/e14/assets/legacy/2018/e14PresentsJune818.png" width="180px" /></a></div> <div style="display:inline-block;vertical-align:top;width:70%;"><br /> <p style="margin:0;"><span><a class="jivecontainerTT-hover-container jive-link-community-small" href="/challengesprojects/element14-presents/" data-e14adj="y">element14 presents</a></span>&nbsp; <strong>|</strong>&nbsp; <a class="jive-link-wiki-small" href="/challengesprojects/element14-presents/vcp-program/w/documents/5024/vcp-biography-katie" data-e14adj="y">About Katie Dumont</a>&nbsp;<span style="padding-right:5px;"></span><strong>|</strong>&nbsp; <a class="jivecontainerTT-hover-container jive-link-community-small" href="/challengesprojects/element14-presents/project-videos/" data-e14adj="y">Project Videos</a></p> <p style="margin:0;"></p> </div> </div><div style="clear:both;"></div> <div style="font-size: 90%;">Tags: e14p_KD, temperature control, raspberry pi pico, oven, friday_release</div> https://community.element14.com/challenges-projects/element14-presents/project-videos/w/documents/28300/mastering-oven-control-precision-resin-curing-with-diy-modifications---how-hard-can-it-be----episode-616/revision/6Thu, 17 Aug 2023 15:04:02 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:99029710-e77c-497b-a33a-7eb62da7a5b3pchanhttps://community.element14.com/challenges-projects/element14-presents/project-videos/w/documents/28300/mastering-oven-control-precision-resin-curing-with-diy-modifications---how-hard-can-it-be----episode-616#commentsRevision 6 posted to Documents by pchan on 8/17/2023 3:04:02 PM<br /> <p><span data-contrast="auto">In this&nbsp;element14&nbsp;presents episode, Katie tackles the challenge of revamping a budget-friendly toaster oven&nbsp;and transforming it&nbsp;into a dependable resin-curing tool with precise temperature control. She begins by explaining her need for clear epoxy resin with specific curing requirements,&nbsp;as well as&nbsp;the dilemma she faces&nbsp;regarding&nbsp;temperature settings. Intrigued by the &#39;for best results&#39; instructions and a desire to reduce the curing time, Katie turns to an economical toaster oven she found online. Although acknowledging its lower quality, she hopes to&nbsp;modify&nbsp;it for her purpose.</span><span>&nbsp;</span></p> <p><a href="https://www.youtube.com/watch?v=SYLMBWT7028&amp;feature=youtu.be">www.youtube.com/watch</a></p> <p><span data-contrast="auto">Katie&#39;s attention shifts to the toaster oven&#39;s temperature control mechanism, which she suspects might not accurately reflect the actual temperature output. The oven&#39;s operation involves adjusting the desired temperature and time, but Katie aims for more accuracy. To address this, she opts for a Raspberry Pi Pico and a spare thermistor. However, the thermistor&#39;s leads fall short of reaching outside the oven,&nbsp;necessitating&nbsp;soldering. Since the solder&#39;s melting point is near the curing temperature, Katie&nbsp;anticipates&nbsp;potential connection challenges.</span><span>&nbsp;</span></p> <p><span>&nbsp;<img alt="image" style="max-height:360px;max-width:640px;" src="/resized-image/__size/1280x720/__key/communityserver-wikis-components-files/00-00-00-03-81/vlcsnap_2D00_2023_2D00_08_2D00_09_2D00_17h08m53s124.png" /></span></p> <p><span data-contrast="auto">The project&#39;s crucial stages encompass adapting a kitchen thermometer probe for precise temperature measurement and managing the oven&#39;s heating elements. Katie delves into the inner workings of the toaster oven, discovering the series connection between the timer and temperature control. She plans to replace the original control system with her design, integrating an Omron power relay to handle mains voltage switching. She acknowledges the requirement for a&nbsp;separate&nbsp;24V power supply for the relay coil.</span><span>&nbsp;</span></p> <p><span>&nbsp;<img loading="lazy" alt="image" style="max-height:360px;max-width:640px;" src="/resized-image/__size/1280x720/__key/communityserver-wikis-components-files/00-00-00-03-81/vlcsnap_2D00_2023_2D00_08_2D00_09_2D00_17h09m07s966.png" /></span></p> <p><span data-contrast="auto">Constructing a detailed circuit and programming the Raspberry Pi Pico are fundamental steps in Katie&#39;s project. She successfully incorporates temperature readouts, buttons for setting and&nbsp;initiating&nbsp;oven functions, and a relay for heating element control. During testing, Katie&nbsp;observes&nbsp;that the temperature&nbsp;remains&nbsp;within a 10-degree range of the set value, marking a significant improvement over the original controller. Impressed with the results, she highlights the potential for wider applications beyond resin curing.</span><span>&nbsp;</span></p> <p><span>&nbsp;<img loading="lazy" alt="image" style="max-height:360px;max-width:640px;" src="/resized-image/__size/1280x720/__key/communityserver-wikis-components-files/00-00-00-03-81/vlcsnap_2D00_2023_2D00_08_2D00_09_2D00_17h09m17s044.png" /></span></p> <p><span data-contrast="auto">Subsequently, Katie addresses practical issues, such as preventing the K-Type&nbsp;thermocouple from&nbsp;coming into contact with&nbsp;grounded metal, which could disrupt temperature readings.&nbsp;She develops a protective insulation approach and further&nbsp;optimizes&nbsp;her control setup. Replacing loose connections with&nbsp;Wago&nbsp;block connectors enhances reliability and safety, mitigating grounding concerns. Throughout her journey, Katie&nbsp;demonstrates&nbsp;resourcefulness in troubleshooting and determination to create a refined and user-friendly DIY solution.</span><span>&nbsp;</span></p> <p><span>&nbsp;<img loading="lazy" alt="image" style="max-height:360px;max-width:640px;" src="/resized-image/__size/1280x720/__key/communityserver-wikis-components-files/00-00-00-03-81/vlcsnap_2D00_2023_2D00_08_2D00_09_2D00_17h09m58s770.png" /></span></p> <p><span data-contrast="auto"></span></p> <p><span data-contrast="auto">Ultimately, Katie successfully crafts a compact and functional control box for her toaster oven project. While acknowledging potential aesthetic improvements, she celebrates her accomplishment in developing a cost-effective and dependable tool for resin curing. She encourages fellow makers to explore this versatile modification, adaptable to various oven systems. Katie&#39;s experience showcases the potential of elevating everyday appliances with technical skills, while also addressing the challenges she overcame in achieving her goal.</span><span>&nbsp;</span></p> <h2 id="mcetoc_1h7suvi4s0">Bonus Content:</h2> <ul> <li>GitHub (Code):&nbsp;<a href="https://github.com/hifromkatie/Toaster-Oven-Controller" data-e14adj="y" rel="noopener noreferrer nofollow" target="_blank">https://github.com/hifromkatie/Toaster-Oven-Controller</a></li> <li><a href="/challenges-projects/element14-presents/secret-element14-presents/m/files/148049" data-e14adj="y">Download Code</a></li> </ul> <h2 id="mcetoc_1h7sv65br2">Bill of Material:</h2> <table class="e14-product-bom-main"> <tbody> <tr> <th>Product Name</th> <th>Manufacturer</th> <th>Quantity</th> <th><a id="e14-product-link-7c80d" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="button" href="https://referral.element14.com/OrderCodeView?fsku=3643332,3517948,8598053,1564548~2,2543533,301309,9664505,1832571&nsku=22AJ1097,87AH5903,38K1519,95M7860~2,82Y6564,07WX0678,92K7080,36K1930&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_BUY_KIT" class="e14-embedded e14_shopping-cart-far e14-button" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('7c80d'));" data-farnell="3643332,3517948,8598053,1564548~2,2543533,301309,9664505,1832571" data-newark="22AJ1097,87AH5903,38K1519,95M7860~2,82Y6564,07WX0678,92K7080,36K1930" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea=",,,undefined~2,,,," data-avnetema=",,,undefined~2,,,," data-avnetasia=",,,undefined~2,,,," >Buy Kit</a> </th> </tr> <tr> <td>RASPBERRY PI PICO</td> <td>RASPBERRY-PI</td> <td>1</td> <td><a id="e14-product-link-c2bee" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="button" href="https://referral.element14.com/OrderCodeView?fsku=3643332&nsku=22AJ1097&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-button" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('c2bee'));" data-farnell="3643332" data-newark="22AJ1097" data-comoverride="" data-cmpoverride="" data-cpc="SC17106" data-avnetemea="undefined" data-avnetema="undefined" data-avnetasia="undefined" >Buy Now</a> </td> </tr> <tr> <td>High Temperature Sensor, Gravity, I2C, K-Type, 800℃, for Arduino and Raspberry Pi Board</td> <td>DFROBOT</td> <td>1</td> <td><a id="e14-product-link-af560" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="button" href="https://referral.element14.com/OrderCodeView?fsku=3517948&nsku=87AH5903&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-button" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('af560'));" data-farnell="3517948" data-newark="87AH5903" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="undefined" data-avnetema="undefined" data-avnetasia="undefined" >Buy Now</a> </td> </tr> <tr> <td>Thermocouple, Nozzle, K, 0 &deg;C, 350 &deg;C, Stainless Steel, 6.6 ft, 2 m</td> <td>LABFACILITY</td> <td>1</td> <td><a id="e14-product-link-d5b74" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="button" href="https://referral.element14.com/OrderCodeView?fsku=8598053&nsku=38K1519&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-button" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('d5b74'));" data-farnell="8598053" data-newark="38K1519" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="undefined" data-avnetema="undefined" data-avnetasia="undefined" >Buy Now</a> </td> </tr> <tr> <td>GROMMET, BLACK M20 PK50</td> <td>PRO POWER</td> <td>2</td> <td><a id="e14-product-link-01436" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="button" href="https://referral.element14.com/OrderCodeView?fsku=1564548&nsku=95M7860&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-button" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('01436'));" data-farnell="1564548" data-newark="95M7860" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="undefined" data-avnetema="undefined" data-avnetasia="undefined" >Buy Now</a> </td> </tr> <tr> <td>Power MOSFET, P Channel, 20 V, 4.2 A, 0.04 ohm, SOT-23, Surface Mount</td> <td>DIODES INC.</td> <td>1</td> <td><a id="e14-product-link-b7d32" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="button" href="https://referral.element14.com/OrderCodeView?fsku=2543533&nsku=82Y6564&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-button" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('b7d32'));" data-farnell="2543533" data-newark="82Y6564" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="undefined" data-avnetema="undefined" data-avnetasia="undefined" >Buy Now</a> </td> </tr> <tr> <td>Plastic Enclosure, Box, With Lid, Multipurpose, ABS, 83.1 mm, 177 mm, 120 mm</td> <td>MULTICOMP PRO</td> <td>1</td> <td><a id="e14-product-link-1e876" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="button" href="https://referral.element14.com/OrderCodeView?fsku=301309&nsku=07WX0678&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-button" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('1e876'));" data-farnell="301309" data-newark="07WX0678" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="undefined" data-avnetema="undefined" data-avnetasia="undefined" >Buy Now</a> </td> </tr> <tr> <td>IC, V REG +5.0V, 7805, TO-220-3</td> <td>ONSEMI</td> <td>1</td> <td><a id="e14-product-link-0d54a" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="button" href="https://referral.element14.com/OrderCodeView?fsku=9664505&nsku=92K7080&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-button" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('0d54a'));" data-farnell="9664505" data-newark="92K7080" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="undefined" data-avnetema="undefined" data-avnetasia="undefined" >Buy Now</a> </td> </tr> <tr> <td>Power Relay, SPST-NO, 24 VDC, 10 A, G2R Series, Through Hole, Non Latching</td> <td>OMRON ELECTRONIC COMPONENTS</td> <td>1</td> <td><a id="e14-product-link-30063" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="button" href="https://referral.element14.com/OrderCodeView?fsku=1832571&nsku=36K1930&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-button" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('30063'));" data-farnell="1832571" data-newark="36K1930" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="undefined" data-avnetema="undefined" data-avnetasia="undefined" >Buy Now</a> </td> </tr> <tr class="xs-hide"> <td>&nbsp;</td> <td></td> <td></td> <td></td> </tr> </tbody> </table> <h2 id="mcetoc_1h7sveeri3">Additional Parts:</h2> <table> <tbody> <tr> <td>Toaster Oven</td> </tr> </tbody> </table> <p></p> <div style="background:#ffffff;border:1px solid #dadada;margin:0;padding:14px 16px 16px 18px;vertical-align:top;"> <div style="display:inline-block;float:left;padding:0px 25px 8px 0px;"><a href="/challengesprojects/element14-presents/" data-e14adj="y"><img loading="lazy" alt="element14 presents" src="/e14/assets/legacy/2018/e14PresentsJune818.png" width="180px" /></a></div> <div style="display:inline-block;vertical-align:top;width:70%;"><br /> <p style="margin:0;"><span><a class="jivecontainerTT-hover-container jive-link-community-small" href="/challengesprojects/element14-presents/" data-e14adj="y">element14 presents</a></span>&nbsp; <strong>|</strong>&nbsp; <a class="jive-link-wiki-small" href="/challengesprojects/element14-presents/vcp-program/w/documents/5024/vcp-biography-katie" data-e14adj="y">About Katie Dumont</a>&nbsp;<span style="padding-right:5px;"></span><strong>|</strong>&nbsp; <a class="jivecontainerTT-hover-container jive-link-community-small" href="/challengesprojects/element14-presents/project-videos/" data-e14adj="y">Project Videos</a></p> <p style="margin:0;"></p> </div> </div><div style="clear:both;"></div> <div style="font-size: 90%;">Tags: e14p_KD, temperature control, raspberry pi pico, oven, friday_release</div> https://community.element14.com/challenges-projects/element14-presents/project-videos/w/documents/28300/mastering-oven-control-precision-resin-curing-with-diy-modifications---how-hard-can-it-be----episode-616/revision/4Tue, 15 Aug 2023 16:36:25 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:99029710-e77c-497b-a33a-7eb62da7a5b3tariq.ahmadhttps://community.element14.com/challenges-projects/element14-presents/project-videos/w/documents/28300/mastering-oven-control-precision-resin-curing-with-diy-modifications---how-hard-can-it-be----episode-616#commentsRevision 4 posted to Documents by tariq.ahmad on 8/15/2023 4:36:25 PM<br /> <p><span data-contrast="auto">In this&nbsp;element14&nbsp;presents episode, Katie tackles the challenge of revamping a budget-friendly toaster oven&nbsp;and transforming it&nbsp;into a dependable resin-curing tool with precise temperature control. She begins by explaining her need for clear epoxy resin with specific curing requirements,&nbsp;as well as&nbsp;the dilemma she faces&nbsp;regarding&nbsp;temperature settings. Intrigued by the &#39;for best results&#39; instructions and a desire to reduce the curing time, Katie turns to an economical toaster oven she found online. Although acknowledging its lower quality, she hopes to&nbsp;modify&nbsp;it for her purpose.</span><span>&nbsp;</span></p> <p><a href="https://www.youtube.com/watch?v=SYLMBWT7028&amp;feature=youtu.be">www.youtube.com/watch</a></p> <p><span data-contrast="auto">Katie&#39;s attention shifts to the toaster oven&#39;s temperature control mechanism, which she suspects might not accurately reflect the actual temperature output. The oven&#39;s operation involves adjusting the desired temperature and time, but Katie aims for more accuracy. To address this, she opts for a Raspberry Pi Pico and a spare thermistor. However, the thermistor&#39;s leads fall short of reaching outside the oven,&nbsp;necessitating&nbsp;soldering. Since the solder&#39;s melting point is near the curing temperature, Katie&nbsp;anticipates&nbsp;potential connection challenges.</span><span>&nbsp;</span></p> <p><span>&nbsp;<img alt="image" style="max-height:360px;max-width:640px;" src="/resized-image/__size/1280x720/__key/communityserver-wikis-components-files/00-00-00-04-35/vlcsnap_2D00_2023_2D00_08_2D00_09_2D00_17h08m53s124.png" /></span></p> <p><span data-contrast="auto">The project&#39;s crucial stages encompass adapting a kitchen thermometer probe for precise temperature measurement and managing the oven&#39;s heating elements. Katie delves into the inner workings of the toaster oven, discovering the series connection between the timer and temperature control. She plans to replace the original control system with her design, integrating an Omron power relay to handle mains voltage switching. She acknowledges the requirement for a&nbsp;separate&nbsp;24V power supply for the relay coil.</span><span>&nbsp;</span></p> <p><span>&nbsp;<img loading="lazy" alt="image" style="max-height:360px;max-width:640px;" src="/resized-image/__size/1280x720/__key/communityserver-wikis-components-files/00-00-00-04-35/vlcsnap_2D00_2023_2D00_08_2D00_09_2D00_17h09m07s966.png" /></span></p> <p><span data-contrast="auto">Constructing a detailed circuit and programming the Raspberry Pi Pico are fundamental steps in Katie&#39;s project. She successfully incorporates temperature readouts, buttons for setting and&nbsp;initiating&nbsp;oven functions, and a relay for heating element control. During testing, Katie&nbsp;observes&nbsp;that the temperature&nbsp;remains&nbsp;within a 10-degree range of the set value, marking a significant improvement over the original controller. Impressed with the results, she highlights the potential for wider applications beyond resin curing.</span><span>&nbsp;</span></p> <p><span>&nbsp;<img loading="lazy" alt="image" style="max-height:360px;max-width:640px;" src="/resized-image/__size/1280x720/__key/communityserver-wikis-components-files/00-00-00-04-35/vlcsnap_2D00_2023_2D00_08_2D00_09_2D00_17h09m17s044.png" /></span></p> <p><span data-contrast="auto">Subsequently, Katie addresses practical issues, such as preventing the K-Type&nbsp;thermocouple from&nbsp;coming into contact with&nbsp;grounded metal, which could disrupt temperature readings.&nbsp;She develops a protective insulation approach and further&nbsp;optimizes&nbsp;her control setup. Replacing loose connections with&nbsp;Wago&nbsp;block connectors enhances reliability and safety, mitigating grounding concerns. Throughout her journey, Katie&nbsp;demonstrates&nbsp;resourcefulness in troubleshooting and determination to create a refined and user-friendly DIY solution.</span><span>&nbsp;</span></p> <p><span>&nbsp;<img loading="lazy" alt="image" style="max-height:360px;max-width:640px;" src="/resized-image/__size/1280x720/__key/communityserver-wikis-components-files/00-00-00-04-35/vlcsnap_2D00_2023_2D00_08_2D00_09_2D00_17h09m58s770.png" /></span></p> <p><span data-contrast="auto"></span></p> <p><span data-contrast="auto">Ultimately, Katie successfully crafts a compact and functional control box for her toaster oven project. While acknowledging potential aesthetic improvements, she celebrates her accomplishment in developing a cost-effective and dependable tool for resin curing. She encourages fellow makers to explore this versatile modification, adaptable to various oven systems. Katie&#39;s experience showcases the potential of elevating everyday appliances with technical skills, while also addressing the challenges she overcame in achieving her goal.</span><span>&nbsp;</span></p> <h2 id="mcetoc_1h7suvi4s0">Bonus Content:</h2> <ul> <li>GitHub (Code):&nbsp;<a href="https://github.com/hifromkatie/Toaster-Oven-Controller" data-e14adj="y" rel="noopener noreferrer nofollow" target="_blank">https://github.com/hifromkatie/Toaster-Oven-Controller</a></li> <li><a href="/challenges-projects/element14-presents/secret-element14-presents/m/files/148049" data-e14adj="y">Download Code</a></li> </ul> <h2 id="mcetoc_1h7sv65br2">Bill of Material:</h2> <table class="e14-product-bom-main"> <tbody> <tr> <th>Product Name</th> <th>Manufacturer</th> <th>Quantity</th> <th><a id="e14-product-link-3c86a" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="button" href="https://referral.element14.com/OrderCodeView?fsku=3643332,3517948,8598053,1564548~2,2543533,301309,9664505,1832571&nsku=22AJ1097,87AH5903,38K1519,95M7860~2,82Y6564,07WX0678,92K7080,36K1930&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_BUY_KIT" class="e14-embedded e14_shopping-cart-far e14-button" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('3c86a'));" data-farnell="3643332,3517948,8598053,1564548~2,2543533,301309,9664505,1832571" data-newark="22AJ1097,87AH5903,38K1519,95M7860~2,82Y6564,07WX0678,92K7080,36K1930" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea=",,,undefined~2,,,," data-avnetema=",,,undefined~2,,,," data-avnetasia=",,,undefined~2,,,," >Buy Kit</a> </th> </tr> <tr> <td>RASPBERRY PI PICO</td> <td>RASPBERRY-PI</td> <td>1</td> <td><a id="e14-product-link-ff3a1" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="button" href="https://referral.element14.com/OrderCodeView?fsku=3643332&nsku=22AJ1097&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-button" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('ff3a1'));" data-farnell="3643332" data-newark="22AJ1097" data-comoverride="" data-cmpoverride="" data-cpc="SC17106" data-avnetemea="undefined" data-avnetema="undefined" data-avnetasia="undefined" >Buy Now</a> </td> </tr> <tr> <td>High Temperature Sensor, Gravity, I2C, K-Type, 800℃, for Arduino and Raspberry Pi Board</td> <td>DFROBOT</td> <td>1</td> <td><a id="e14-product-link-9ca32" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="button" href="https://referral.element14.com/OrderCodeView?fsku=3517948&nsku=87AH5903&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-button" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('9ca32'));" data-farnell="3517948" data-newark="87AH5903" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="undefined" data-avnetema="undefined" data-avnetasia="undefined" >Buy Now</a> </td> </tr> <tr> <td>Thermocouple, Nozzle, K, 0 &deg;C, 350 &deg;C, Stainless Steel, 6.6 ft, 2 m</td> <td>LABFACILITY</td> <td>1</td> <td><a id="e14-product-link-7306f" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="button" href="https://referral.element14.com/OrderCodeView?fsku=8598053&nsku=38K1519&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-button" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('7306f'));" data-farnell="8598053" data-newark="38K1519" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="undefined" data-avnetema="undefined" data-avnetasia="undefined" >Buy Now</a> </td> </tr> <tr> <td>GROMMET, BLACK M20 PK50</td> <td>PRO POWER</td> <td>2</td> <td><a id="e14-product-link-6325e" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="button" href="https://referral.element14.com/OrderCodeView?fsku=1564548&nsku=95M7860&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-button" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('6325e'));" data-farnell="1564548" data-newark="95M7860" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="undefined" data-avnetema="undefined" data-avnetasia="undefined" >Buy Now</a> </td> </tr> <tr> <td>Power MOSFET, P Channel, 20 V, 4.2 A, 0.04 ohm, SOT-23, Surface Mount</td> <td>DIODES INC.</td> <td>1</td> <td><a id="e14-product-link-75d9c" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="button" href="https://referral.element14.com/OrderCodeView?fsku=2543533&nsku=82Y6564&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-button" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('75d9c'));" data-farnell="2543533" data-newark="82Y6564" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="undefined" data-avnetema="undefined" data-avnetasia="undefined" >Buy Now</a> </td> </tr> <tr> <td>Plastic Enclosure, Box, With Lid, Multipurpose, ABS, 83.1 mm, 177 mm, 120 mm</td> <td>MULTICOMP PRO</td> <td>1</td> <td><a id="e14-product-link-81b1d" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="button" href="https://referral.element14.com/OrderCodeView?fsku=301309&nsku=07WX0678&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-button" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('81b1d'));" data-farnell="301309" data-newark="07WX0678" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="undefined" data-avnetema="undefined" data-avnetasia="undefined" >Buy Now</a> </td> </tr> <tr> <td>IC, V REG +5.0V, 7805, TO-220-3</td> <td>ONSEMI</td> <td>1</td> <td><a id="e14-product-link-abfe0" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="button" href="https://referral.element14.com/OrderCodeView?fsku=9664505&nsku=92K7080&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-button" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('abfe0'));" data-farnell="9664505" data-newark="92K7080" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="undefined" data-avnetema="undefined" data-avnetasia="undefined" >Buy Now</a> </td> </tr> <tr> <td>Power Relay, SPST-NO, 24 VDC, 10 A, G2R Series, Through Hole, Non Latching</td> <td>OMRON ELECTRONIC COMPONENTS</td> <td>1</td> <td><a id="e14-product-link-695b5" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="button" href="https://referral.element14.com/OrderCodeView?fsku=1832571&nsku=36K1930&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-button" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('695b5'));" data-farnell="1832571" data-newark="36K1930" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="undefined" data-avnetema="undefined" data-avnetasia="undefined" >Buy Now</a> </td> </tr> <tr class="xs-hide"> <td>&nbsp;</td> <td></td> <td></td> <td></td> </tr> </tbody> </table> <h2 id="mcetoc_1h7sveeri3">Additional Parts:</h2> <table> <tbody> <tr> <td>Toaster Oven</td> </tr> </tbody> </table> <p></p> <div style="background:#ffffff;border:1px solid #dadada;margin:0;padding:14px 16px 16px 18px;vertical-align:top;"> <div style="display:inline-block;float:left;padding:0px 25px 8px 0px;"><a href="/challengesprojects/element14-presents/" data-e14adj="y"><img loading="lazy" alt="element14 presents" src="/e14/assets/legacy/2018/e14PresentsJune818.png" width="180px" /></a></div> <div style="display:inline-block;vertical-align:top;width:70%;"><br /> <p style="margin:0;"><span><a class="jivecontainerTT-hover-container jive-link-community-small" href="/challengesprojects/element14-presents/" data-e14adj="y">element14 presents</a></span>&nbsp; <strong>|</strong>&nbsp; <a class="jive-link-wiki-small" href="/challengesprojects/element14-presents/vcp-program/w/documents/5024/vcp-biography-katie" data-e14adj="y">About Katie Dumont</a>&nbsp;<span style="padding-right:5px;"></span><strong>|</strong>&nbsp; <a class="jivecontainerTT-hover-container jive-link-community-small" href="/challengesprojects/element14-presents/project-videos/" data-e14adj="y">Project Videos</a></p> <p style="margin:0;"></p> </div> </div><div style="clear:both;"></div> <div style="font-size: 90%;">Tags: e14p_KD, temperature control, raspberry pi pico, oven, friday_release</div> https://community.element14.com/challenges-projects/element14-presents/project-videos/w/documents/28300/mastering-oven-control-precision-resin-curing-with-diy-modifications---how-hard-can-it-be----episode-616/revision/3Tue, 15 Aug 2023 16:28:10 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:99029710-e77c-497b-a33a-7eb62da7a5b3tariq.ahmadhttps://community.element14.com/challenges-projects/element14-presents/project-videos/w/documents/28300/mastering-oven-control-precision-resin-curing-with-diy-modifications---how-hard-can-it-be----episode-616#commentsRevision 3 posted to Documents by tariq.ahmad on 8/15/2023 4:28:10 PM<br /> <p><span data-contrast="auto">In this&nbsp;element14&nbsp;presents episode, Katie tackles the challenge of revamping a budget-friendly toaster oven&nbsp;and transforming it&nbsp;into a dependable resin-curing tool with precise temperature control. She begins by explaining her need for clear epoxy resin with specific curing requirements,&nbsp;as well as&nbsp;the dilemma she faces&nbsp;regarding&nbsp;temperature settings. Intrigued by the &#39;for best results&#39; instructions and a desire to reduce the curing time, Katie turns to an economical toaster oven she found online. Although acknowledging its lower quality, she hopes to&nbsp;modify&nbsp;it for her purpose.</span><span>&nbsp;</span></p> <p><a href="https://www.youtube.com/watch?v=SYLMBWT7028&amp;feature=youtu.be">www.youtube.com/watch</a></p> <p><span data-contrast="auto">Katie&#39;s attention shifts to the toaster oven&#39;s temperature control mechanism, which she suspects might not accurately reflect the actual temperature output. The oven&#39;s operation involves adjusting the desired temperature and time, but Katie aims for more accuracy. To address this, she opts for a Raspberry Pi Pico and a spare thermistor. However, the thermistor&#39;s leads fall short of reaching outside the oven,&nbsp;necessitating&nbsp;soldering. Since the solder&#39;s melting point is near the curing temperature, Katie&nbsp;anticipates&nbsp;potential connection challenges.</span><span>&nbsp;</span></p> <p><span>&nbsp;<img alt="image" style="max-height:360px;max-width:640px;" src="/resized-image/__size/1280x720/__key/communityserver-wikis-components-files/00-00-00-04-35/vlcsnap_2D00_2023_2D00_08_2D00_09_2D00_17h08m53s124.png" /></span></p> <p><span data-contrast="auto">The project&#39;s crucial stages encompass adapting a kitchen thermometer probe for precise temperature measurement and managing the oven&#39;s heating elements. Katie delves into the inner workings of the toaster oven, discovering the series connection between the timer and temperature control. She plans to replace the original control system with her design, integrating an Omron power relay to handle mains voltage switching. She acknowledges the requirement for a&nbsp;separate&nbsp;24V power supply for the relay coil.</span><span>&nbsp;</span></p> <p><span>&nbsp;<img loading="lazy" alt="image" style="max-height:360px;max-width:640px;" src="/resized-image/__size/1280x720/__key/communityserver-wikis-components-files/00-00-00-04-35/vlcsnap_2D00_2023_2D00_08_2D00_09_2D00_17h09m07s966.png" /></span></p> <p><span data-contrast="auto">Constructing a detailed circuit and programming the Raspberry Pi Pico are fundamental steps in Katie&#39;s project. She successfully incorporates temperature readouts, buttons for setting and&nbsp;initiating&nbsp;oven functions, and a relay for heating element control. During testing, Katie&nbsp;observes&nbsp;that the temperature&nbsp;remains&nbsp;within a 10-degree range of the set value, marking a significant improvement over the original controller. Impressed with the results, she highlights the potential for wider applications beyond resin curing.</span><span>&nbsp;</span></p> <p><span>&nbsp;<img loading="lazy" alt="image" style="max-height:360px;max-width:640px;" src="/resized-image/__size/1280x720/__key/communityserver-wikis-components-files/00-00-00-04-35/vlcsnap_2D00_2023_2D00_08_2D00_09_2D00_17h09m17s044.png" /></span></p> <p><span data-contrast="auto">Subsequently, Katie addresses practical issues, such as preventing the K-Type&nbsp;thermocouple from&nbsp;coming into contact with&nbsp;grounded metal, which could disrupt temperature readings.&nbsp;She develops a protective insulation approach and further&nbsp;optimizes&nbsp;her control setup. Replacing loose connections with&nbsp;Wago&nbsp;block connectors enhances reliability and safety, mitigating grounding concerns. Throughout her journey, Katie&nbsp;demonstrates&nbsp;resourcefulness in troubleshooting and determination to create a refined and user-friendly DIY solution.</span><span>&nbsp;</span></p> <p><span>&nbsp;<img loading="lazy" alt="image" style="max-height:360px;max-width:640px;" src="/resized-image/__size/1280x720/__key/communityserver-wikis-components-files/00-00-00-04-35/vlcsnap_2D00_2023_2D00_08_2D00_09_2D00_17h09m58s770.png" /></span></p> <p><span data-contrast="auto"></span></p> <p><span data-contrast="auto">Ultimately, Katie successfully crafts a compact and functional control box for her toaster oven project. While acknowledging potential aesthetic improvements, she celebrates her accomplishment in developing a cost-effective and dependable tool for resin curing. She encourages fellow makers to explore this versatile modification, adaptable to various oven systems. Katie&#39;s experience showcases the potential of elevating everyday appliances with technical skills, while also addressing the challenges she overcame in achieving her goal.</span><span>&nbsp;</span></p> <h2 id="mcetoc_1h7suvi4s0">Bonus Content:</h2> <ul> <li>GitHub (Code):&nbsp;<a href="https://github.com/hifromkatie/Toaster-Oven-Controller" rel="noopener noreferrer nofollow" target="_blank" data-e14adj="y">https://github.com/hifromkatie/Toaster-Oven-Controller</a></li> <li><a href="/challenges-projects/element14-presents/secret-element14-presents/m/files/148049" data-e14adj="y">Download Code</a></li> </ul> <h2 id="mcetoc_1h7sv65br2">Bill of Material:</h2> <table class="e14-product-bom-main"> <tbody> <tr> <th>Product Name</th> <th>Manufacturer</th> <th>Quantity</th> <th><a id="e14-product-link-aa139" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="button" href="https://referral.element14.com/OrderCodeView?fsku=3643332,3517948,8598053,1564548~2,2543533,301309,9664505,1832571&nsku=22AJ1097,87AH5903,38K1519,95M7860~2,82Y6564,07WX0678,92K7080,36K1930&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_BUY_KIT" class="e14-embedded e14_shopping-cart-far e14-button" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('aa139'));" data-farnell="3643332,3517948,8598053,1564548~2,2543533,301309,9664505,1832571" data-newark="22AJ1097,87AH5903,38K1519,95M7860~2,82Y6564,07WX0678,92K7080,36K1930" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea=",,,undefined~2,,,," data-avnetema=",,,undefined~2,,,," data-avnetasia=",,,undefined~2,,,," >Buy Kit</a> </th> </tr> <tr> <td>RASPBERRY PI PICO</td> <td>RASPBERRY-PI</td> <td>1</td> <td><a id="e14-product-link-726b8" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="button" href="https://referral.element14.com/OrderCodeView?fsku=3643332&nsku=22AJ1097&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-button" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('726b8'));" data-farnell="3643332" data-newark="22AJ1097" data-comoverride="" data-cmpoverride="" data-cpc="SC17106" data-avnetemea="undefined" data-avnetema="undefined" data-avnetasia="undefined" >Buy Now</a> </td> </tr> <tr> <td>High Temperature Sensor, Gravity, I2C, K-Type, 800℃, for Arduino and Raspberry Pi Board</td> <td>DFROBOT</td> <td>1</td> <td><a id="e14-product-link-b3323" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="button" href="https://referral.element14.com/OrderCodeView?fsku=3517948&nsku=87AH5903&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-button" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('b3323'));" data-farnell="3517948" data-newark="87AH5903" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="undefined" data-avnetema="undefined" data-avnetasia="undefined" >Buy Now</a> </td> </tr> <tr> <td>Thermocouple, Nozzle, K, 0 &deg;C, 350 &deg;C, Stainless Steel, 6.6 ft, 2 m</td> <td>LABFACILITY</td> <td>1</td> <td><a id="e14-product-link-8e842" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="button" href="https://referral.element14.com/OrderCodeView?fsku=8598053&nsku=38K1519&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-button" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('8e842'));" data-farnell="8598053" data-newark="38K1519" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="undefined" data-avnetema="undefined" data-avnetasia="undefined" >Buy Now</a> </td> </tr> <tr> <td>GROMMET, BLACK M20 PK50</td> <td>PRO POWER</td> <td>2</td> <td><a id="e14-product-link-09746" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="button" href="https://referral.element14.com/OrderCodeView?fsku=1564548&nsku=95M7860&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-button" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('09746'));" data-farnell="1564548" data-newark="95M7860" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="undefined" data-avnetema="undefined" data-avnetasia="undefined" >Buy Now</a> </td> </tr> <tr> <td>Power MOSFET, P Channel, 20 V, 4.2 A, 0.04 ohm, SOT-23, Surface Mount</td> <td>DIODES INC.</td> <td>1</td> <td><a id="e14-product-link-6939f" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="button" href="https://referral.element14.com/OrderCodeView?fsku=2543533&nsku=82Y6564&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-button" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('6939f'));" data-farnell="2543533" data-newark="82Y6564" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="undefined" data-avnetema="undefined" data-avnetasia="undefined" >Buy Now</a> </td> </tr> <tr> <td>Plastic Enclosure, Box, With Lid, Multipurpose, ABS, 83.1 mm, 177 mm, 120 mm</td> <td>MULTICOMP PRO</td> <td>1</td> <td><a id="e14-product-link-a18f6" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="button" href="https://referral.element14.com/OrderCodeView?fsku=301309&nsku=07WX0678&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-button" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('a18f6'));" data-farnell="301309" data-newark="07WX0678" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="undefined" data-avnetema="undefined" data-avnetasia="undefined" >Buy Now</a> </td> </tr> <tr> <td>IC, V REG +5.0V, 7805, TO-220-3</td> <td>ONSEMI</td> <td>1</td> <td><a id="e14-product-link-a7ee3" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="button" href="https://referral.element14.com/OrderCodeView?fsku=9664505&nsku=92K7080&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-button" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('a7ee3'));" data-farnell="9664505" data-newark="92K7080" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="undefined" data-avnetema="undefined" data-avnetasia="undefined" >Buy Now</a> </td> </tr> <tr> <td>Power Relay, SPST-NO, 24 VDC, 10 A, G2R Series, Through Hole, Non Latching</td> <td>OMRON ELECTRONIC COMPONENTS</td> <td>1</td> <td><a id="e14-product-link-1d21b" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="button" href="https://referral.element14.com/OrderCodeView?fsku=1832571&nsku=36K1930&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-button" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('1d21b'));" data-farnell="1832571" data-newark="36K1930" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="undefined" data-avnetema="undefined" data-avnetasia="undefined" >Buy Now</a> </td> </tr> <tr class="xs-hide"> <td>&nbsp;</td> <td></td> <td></td> <td></td> </tr> </tbody> </table> <h2 id="mcetoc_1h7sveeri3">Additional Parts:</h2> <table> <tbody> <tr> <td>Toaster Oven</td> </tr> </tbody> </table> <p></p> <div style="clear:both;"></div> <div style="font-size: 90%;">Tags: e14p_KD, temperature control, raspberry pi pico, oven, friday_release</div> https://community.element14.com/challenges-projects/element14-presents/project-videos/w/documents/28300/mastering-oven-control-precision-resin-curing-with-diy-modifications---how-hard-can-it-be----episode-616/revision/2Tue, 15 Aug 2023 16:22:57 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:99029710-e77c-497b-a33a-7eb62da7a5b3tariq.ahmadhttps://community.element14.com/challenges-projects/element14-presents/project-videos/w/documents/28300/mastering-oven-control-precision-resin-curing-with-diy-modifications---how-hard-can-it-be----episode-616#commentsRevision 2 posted to Documents by tariq.ahmad on 8/15/2023 4:22:57 PM<br /> <p><span data-contrast="auto">In this&nbsp;element14&nbsp;presents episode, Katie tackles the challenge of revamping a budget-friendly toaster oven&nbsp;and transforming it&nbsp;into a dependable resin-curing tool with precise temperature control. She begins by explaining her need for clear epoxy resin with specific curing requirements,&nbsp;as well as&nbsp;the dilemma she faces&nbsp;regarding&nbsp;temperature settings. Intrigued by the &#39;for best results&#39; instructions and a desire to reduce the curing time, Katie turns to an economical toaster oven she found online. Although acknowledging its lower quality, she hopes to&nbsp;modify&nbsp;it for her purpose.</span><span>&nbsp;</span></p> <p><a href="https://www.youtube.com/watch?v=SYLMBWT7028&amp;feature=youtu.be">www.youtube.com/watch</a></p> <p><span data-contrast="auto">Katie&#39;s attention shifts to the toaster oven&#39;s temperature control mechanism, which she suspects might not accurately reflect the actual temperature output. The oven&#39;s operation involves adjusting the desired temperature and time, but Katie aims for more accuracy. To address this, she opts for a Raspberry Pi Pico and a spare thermistor. However, the thermistor&#39;s leads fall short of reaching outside the oven,&nbsp;necessitating&nbsp;soldering. Since the solder&#39;s melting point is near the curing temperature, Katie&nbsp;anticipates&nbsp;potential connection challenges.</span><span>&nbsp;</span></p> <p><span>&nbsp;<img alt="image" style="max-height:360px;max-width:640px;" src="/resized-image/__size/1280x720/__key/communityserver-wikis-components-files/00-00-00-04-35/vlcsnap_2D00_2023_2D00_08_2D00_09_2D00_17h08m53s124.png" /></span></p> <p><span data-contrast="auto">The project&#39;s crucial stages encompass adapting a kitchen thermometer probe for precise temperature measurement and managing the oven&#39;s heating elements. Katie delves into the inner workings of the toaster oven, discovering the series connection between the timer and temperature control. She plans to replace the original control system with her design, integrating an Omron power relay to handle mains voltage switching. She acknowledges the requirement for a&nbsp;separate&nbsp;24V power supply for the relay coil.</span><span>&nbsp;</span></p> <p><span>&nbsp;<img loading="lazy" alt="image" style="max-height:360px;max-width:640px;" src="/resized-image/__size/1280x720/__key/communityserver-wikis-components-files/00-00-00-04-35/vlcsnap_2D00_2023_2D00_08_2D00_09_2D00_17h09m07s966.png" /></span></p> <p><span data-contrast="auto">Constructing a detailed circuit and programming the Raspberry Pi Pico are fundamental steps in Katie&#39;s project. She successfully incorporates temperature readouts, buttons for setting and&nbsp;initiating&nbsp;oven functions, and a relay for heating element control. During testing, Katie&nbsp;observes&nbsp;that the temperature&nbsp;remains&nbsp;within a 10-degree range of the set value, marking a significant improvement over the original controller. Impressed with the results, she highlights the potential for wider applications beyond resin curing.</span><span>&nbsp;</span></p> <p><span>&nbsp;<img loading="lazy" alt="image" style="max-height:360px;max-width:640px;" src="/resized-image/__size/1280x720/__key/communityserver-wikis-components-files/00-00-00-04-35/vlcsnap_2D00_2023_2D00_08_2D00_09_2D00_17h09m17s044.png" /></span></p> <p><span data-contrast="auto">Subsequently, Katie addresses practical issues, such as preventing the K-Type&nbsp;thermocouple from&nbsp;coming into contact with&nbsp;grounded metal, which could disrupt temperature readings.&nbsp;She develops a protective insulation approach and further&nbsp;optimizes&nbsp;her control setup. Replacing loose connections with&nbsp;Wago&nbsp;block connectors enhances reliability and safety, mitigating grounding concerns. Throughout her journey, Katie&nbsp;demonstrates&nbsp;resourcefulness in troubleshooting and determination to create a refined and user-friendly DIY solution.</span><span>&nbsp;</span></p> <p><span>&nbsp;<img loading="lazy" alt="image" style="max-height:360px;max-width:640px;" src="/resized-image/__size/1280x720/__key/communityserver-wikis-components-files/00-00-00-04-35/vlcsnap_2D00_2023_2D00_08_2D00_09_2D00_17h09m58s770.png" /></span></p> <p><span data-contrast="auto"></span></p> <p><span data-contrast="auto">Ultimately, Katie successfully crafts a compact and functional control box for her toaster oven project. While acknowledging potential aesthetic improvements, she celebrates her accomplishment in developing a cost-effective and dependable tool for resin curing. She encourages fellow makers to explore this versatile modification, adaptable to various oven systems. Katie&#39;s experience showcases the potential of elevating everyday appliances with technical skills, while also addressing the challenges she overcame in achieving her goal.</span><span>&nbsp;</span></p> <p><span>&nbsp;</span></p> <h2 id="mcetoc_1h7suvi4s0">Bonus Content:</h2> <ul> <li>Download Code</li> </ul> <p></p> <h3 id="mcetoc_1h7sv65br2">Bill of Materials</h3> <p></p> <table class="e14-product-bom-main"> <tbody> <tr> <th>Product Name</th> <th>Manufacturer</th> <th>Quantity</th> <th><a id="e14-product-link-22684" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="button" href="https://referral.element14.com/OrderCodeView?fsku=3643332,3517948,8598053,1564548~2,2543533,301309,9664505,1832571&nsku=22AJ1097,87AH5903,38K1519,95M7860~2,82Y6564,07WX0678,92K7080,36K1930&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_BUY_KIT" class="e14-embedded e14_shopping-cart-far e14-button" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('22684'));" data-farnell="3643332,3517948,8598053,1564548~2,2543533,301309,9664505,1832571" data-newark="22AJ1097,87AH5903,38K1519,95M7860~2,82Y6564,07WX0678,92K7080,36K1930" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea=",,,undefined~2,,,," data-avnetema=",,,undefined~2,,,," data-avnetasia=",,,undefined~2,,,," >Buy Kit</a> </th> </tr> <tr> <td>RASPBERRY PI PICO</td> <td>RASPBERRY-PI</td> <td>1</td> <td><a id="e14-product-link-7f201" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="button" href="https://referral.element14.com/OrderCodeView?fsku=3643332&nsku=22AJ1097&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-button" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('7f201'));" data-farnell="3643332" data-newark="22AJ1097" data-comoverride="" data-cmpoverride="" data-cpc="SC17106" data-avnetemea="undefined" data-avnetema="undefined" data-avnetasia="undefined" >Buy Now</a> </td> </tr> <tr> <td>High Temperature Sensor, Gravity, I2C, K-Type, 800℃, for Arduino and Raspberry Pi Board</td> <td>DFROBOT</td> <td>1</td> <td><a id="e14-product-link-c1664" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="button" href="https://referral.element14.com/OrderCodeView?fsku=3517948&nsku=87AH5903&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-button" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('c1664'));" data-farnell="3517948" data-newark="87AH5903" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="undefined" data-avnetema="undefined" data-avnetasia="undefined" >Buy Now</a> </td> </tr> <tr> <td>Thermocouple, Nozzle, K, 0 &deg;C, 350 &deg;C, Stainless Steel, 6.6 ft, 2 m</td> <td>LABFACILITY</td> <td>1</td> <td><a id="e14-product-link-6ea32" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="button" href="https://referral.element14.com/OrderCodeView?fsku=8598053&nsku=38K1519&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-button" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('6ea32'));" data-farnell="8598053" data-newark="38K1519" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="undefined" data-avnetema="undefined" data-avnetasia="undefined" >Buy Now</a> </td> </tr> <tr> <td>GROMMET, BLACK M20 PK50</td> <td>PRO POWER</td> <td>2</td> <td><a id="e14-product-link-f3940" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="button" href="https://referral.element14.com/OrderCodeView?fsku=1564548&nsku=95M7860&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-button" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('f3940'));" data-farnell="1564548" data-newark="95M7860" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="undefined" data-avnetema="undefined" data-avnetasia="undefined" >Buy Now</a> </td> </tr> <tr> <td>Power MOSFET, P Channel, 20 V, 4.2 A, 0.04 ohm, SOT-23, Surface Mount</td> <td>DIODES INC.</td> <td>1</td> <td><a id="e14-product-link-6d43f" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="button" href="https://referral.element14.com/OrderCodeView?fsku=2543533&nsku=82Y6564&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-button" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('6d43f'));" data-farnell="2543533" data-newark="82Y6564" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="undefined" data-avnetema="undefined" data-avnetasia="undefined" >Buy Now</a> </td> </tr> <tr> <td>Plastic Enclosure, Box, With Lid, Multipurpose, ABS, 83.1 mm, 177 mm, 120 mm</td> <td>MULTICOMP PRO</td> <td>1</td> <td><a id="e14-product-link-713cd" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="button" href="https://referral.element14.com/OrderCodeView?fsku=301309&nsku=07WX0678&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-button" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('713cd'));" data-farnell="301309" data-newark="07WX0678" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="undefined" data-avnetema="undefined" data-avnetasia="undefined" >Buy Now</a> </td> </tr> <tr> <td>IC, V REG +5.0V, 7805, TO-220-3</td> <td>ONSEMI</td> <td>1</td> <td><a id="e14-product-link-ac1f3" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="button" href="https://referral.element14.com/OrderCodeView?fsku=9664505&nsku=92K7080&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-button" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('ac1f3'));" data-farnell="9664505" data-newark="92K7080" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="undefined" data-avnetema="undefined" data-avnetasia="undefined" >Buy Now</a> </td> </tr> <tr> <td>Power Relay, SPST-NO, 24 VDC, 10 A, G2R Series, Through Hole, Non Latching</td> <td>OMRON ELECTRONIC COMPONENTS</td> <td>1</td> <td><a id="e14-product-link-df482" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="button" href="https://referral.element14.com/OrderCodeView?fsku=1832571&nsku=36K1930&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-button" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('df482'));" data-farnell="1832571" data-newark="36K1930" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="undefined" data-avnetema="undefined" data-avnetasia="undefined" >Buy Now</a> </td> </tr> <tr class="xs-hide"> <td>&nbsp;</td> <td></td> <td></td> <td></td> </tr> </tbody> </table> <h2 id="mcetoc_1h7sveeri3">Additional Parts:</h2> <table> <tbody> <tr> <td>Toaster Oven</td> </tr> </tbody> </table> <p></p> <p></p> <div style="clear:both;"></div> <div style="font-size: 90%;">Tags: e14p_KD, temperature control, raspberry pi pico, oven, friday_release</div> https://community.element14.com/challenges-projects/element14-presents/project-videos/w/documents/28300/mastering-oven-control-precision-resin-curing-with-diy-modifications---how-hard-can-it-be----episode-616/revision/1Tue, 15 Aug 2023 16:14:31 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:99029710-e77c-497b-a33a-7eb62da7a5b3tariq.ahmadhttps://community.element14.com/challenges-projects/element14-presents/project-videos/w/documents/28300/mastering-oven-control-precision-resin-curing-with-diy-modifications---how-hard-can-it-be----episode-616#commentsRevision 1 posted to Documents by tariq.ahmad on 8/15/2023 4:14:31 PM<br /> <p>Toaster Ovens can be bought cheap for curing resins, reflow soldering etc, but I found it wasn&rsquo;t very accurate. How hard could it be to use a Raspberry Pi Pico based Oven temperature controller with a K-type thermocouple and a relay?</p> <p><a href="https://www.youtube.com/watch?v=SYLMBWT7028&amp;feature=youtu.be">www.youtube.com/watch</a></p> <h2 id="mcetoc_1h7suvi4s0">Bonus Content:</h2> <ul> <li>Download Code</li> </ul> <p></p> <h3 id="mcetoc_1h7sv65br2">Bill of Materials</h3> <p></p> <table class="e14-product-bom-main"> <tbody> <tr> <th>Product Name</th> <th>Manufacturer</th> <th>Quantity</th> <th><a id="e14-product-link-356cc" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="button" href="https://referral.element14.com/OrderCodeView?fsku=3643332,3517948,8598053,1564548~2,2543533,301309,9664505,1832571&nsku=22AJ1097,87AH5903,38K1519,95M7860~2,82Y6564,07WX0678,92K7080,36K1930&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_BUY_KIT" class="e14-embedded e14_shopping-cart-far e14-button" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('356cc'));" data-farnell="3643332,3517948,8598053,1564548~2,2543533,301309,9664505,1832571" data-newark="22AJ1097,87AH5903,38K1519,95M7860~2,82Y6564,07WX0678,92K7080,36K1930" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea=",,,undefined~2,,,," data-avnetema=",,,undefined~2,,,," data-avnetasia=",,,undefined~2,,,," >Buy Kit</a> </th> </tr> <tr> <td>RASPBERRY PI PICO</td> <td>RASPBERRY-PI</td> <td>1</td> <td><a id="e14-product-link-93c1b" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="button" href="https://referral.element14.com/OrderCodeView?fsku=3643332&nsku=22AJ1097&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-button" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('93c1b'));" data-farnell="3643332" data-newark="22AJ1097" data-comoverride="" data-cmpoverride="" data-cpc="SC17106" data-avnetemea="undefined" data-avnetema="undefined" data-avnetasia="undefined" >Buy Now</a> </td> </tr> <tr> <td>High Temperature Sensor, Gravity, I2C, K-Type, 800℃, for Arduino and Raspberry Pi Board</td> <td>DFROBOT</td> <td>1</td> <td><a id="e14-product-link-19b93" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="button" href="https://referral.element14.com/OrderCodeView?fsku=3517948&nsku=87AH5903&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-button" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('19b93'));" data-farnell="3517948" data-newark="87AH5903" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="undefined" data-avnetema="undefined" data-avnetasia="undefined" >Buy Now</a> </td> </tr> <tr> <td>Thermocouple, Nozzle, K, 0 &deg;C, 350 &deg;C, Stainless Steel, 6.6 ft, 2 m</td> <td>LABFACILITY</td> <td>1</td> <td><a id="e14-product-link-21776" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="button" href="https://referral.element14.com/OrderCodeView?fsku=8598053&nsku=38K1519&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-button" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('21776'));" data-farnell="8598053" data-newark="38K1519" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="undefined" data-avnetema="undefined" data-avnetasia="undefined" >Buy Now</a> </td> </tr> <tr> <td>GROMMET, BLACK M20 PK50</td> <td>PRO POWER</td> <td>2</td> <td><a id="e14-product-link-e4396" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="button" href="https://referral.element14.com/OrderCodeView?fsku=1564548&nsku=95M7860&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-button" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('e4396'));" data-farnell="1564548" data-newark="95M7860" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="undefined" data-avnetema="undefined" data-avnetasia="undefined" >Buy Now</a> </td> </tr> <tr> <td>Power MOSFET, P Channel, 20 V, 4.2 A, 0.04 ohm, SOT-23, Surface Mount</td> <td>DIODES INC.</td> <td>1</td> <td><a id="e14-product-link-aa1b2" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="button" href="https://referral.element14.com/OrderCodeView?fsku=2543533&nsku=82Y6564&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-button" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('aa1b2'));" data-farnell="2543533" data-newark="82Y6564" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="undefined" data-avnetema="undefined" data-avnetasia="undefined" >Buy Now</a> </td> </tr> <tr> <td>Plastic Enclosure, Box, With Lid, Multipurpose, ABS, 83.1 mm, 177 mm, 120 mm</td> <td>MULTICOMP PRO</td> <td>1</td> <td><a id="e14-product-link-5722c" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="button" href="https://referral.element14.com/OrderCodeView?fsku=301309&nsku=07WX0678&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-button" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('5722c'));" data-farnell="301309" data-newark="07WX0678" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="undefined" data-avnetema="undefined" data-avnetasia="undefined" >Buy Now</a> </td> </tr> <tr> <td>IC, V REG +5.0V, 7805, TO-220-3</td> <td>ONSEMI</td> <td>1</td> <td><a id="e14-product-link-8f13a" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="button" href="https://referral.element14.com/OrderCodeView?fsku=9664505&nsku=92K7080&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-button" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('8f13a'));" data-farnell="9664505" data-newark="92K7080" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="undefined" data-avnetema="undefined" data-avnetasia="undefined" >Buy Now</a> </td> </tr> <tr> <td>Power Relay, SPST-NO, 24 VDC, 10 A, G2R Series, Through Hole, Non Latching</td> <td>OMRON ELECTRONIC COMPONENTS</td> <td>1</td> <td><a id="e14-product-link-7f913" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="button" href="https://referral.element14.com/OrderCodeView?fsku=1832571&nsku=36K1930&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-button" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('7f913'));" data-farnell="1832571" data-newark="36K1930" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="undefined" data-avnetema="undefined" data-avnetasia="undefined" >Buy Now</a> </td> </tr> <tr class="xs-hide"> <td>&nbsp;</td> <td></td> <td></td> <td></td> </tr> </tbody> </table> <h2 id="mcetoc_1h7sveeri3">Additional Parts:</h2> <table> <tbody> <tr> <td>Toaster Oven</td> </tr> </tbody> </table> <p></p> <p></p> <p></p> <div style="clear:both;"></div> <div style="font-size: 90%;">Tags: e14p_KD, temperature control, raspberry pi pico, oven, friday_release</div>