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Making robot and machine parts; ask questions

Catwell

One of the first CNC machines I built. Performing 2 complete circles. (Via Cabe Atwell)
 
 
So, you want to build a robot, what is holding you back? Let me briefly share how I ended up designing and building industrial robotics.
 
When I first started, I found the biggest hurdle coming from my inability to create quality parts. I refused to use wood, PVC, or any ad-hoc design method. For me, +/- 0.0001" precision was necessary. I started with a few small machines. On those I was able to make what I needed. I even made machines and fixtures to help improve the quality. (Keep in mind, the highest quality machines long ago were built by human hands. Then that machine made even higher-quality  components. And today, we have 16 axies, $500K machining centers. It all starts somewhere.)
 
Over time, I developed my own machine shop. I taught myself to be a rather proficient machinist. I designed and build my own CNC machinery, which lets me make parts I could never do by hand. More recently, I taught myself SolidWorks, which elevated my design capabilities to new heights. Now, I can make anything.
 
Since, I could have used some help when I first started, I am offering to help any of your aspiring robotics designers/machinists out there with making some parts. I occasionally have some down time at my shop, and would be happy to help anyone down the design path.
 
Just send me a private message if you need any parts made or need help.
 
Otherwise, what are you working on? Share some design challenges you overcame. Alternatively, ask a question about robotics or machining.
 
Cabe

  • Hi Cabe,

     

    I just received an email that my CNC kit from DYICNC has been shipped.  This is my first step into the machining world, but I am excited by the potential.  I hope to put a blog together as I assemble the device so that the community can see how to get into CNC for a relatively low cost.  I don't know how well it will stack up to your machining requirements, but we shall see.

     

    Thanks to you and others in the E14 community, I now have the inspiration to build my own devices.  Perhaps another Evil Genius will be born. image

     

    DAB

  • Thanks for you generous offer Cabe.

     

    I reckon that with a bit of programming, you could play a tune on that!

  • in reply to DAB

    Alan,

    I am glad to help.

     

    Dab,

    CNC is not intimidating at all. If you need help with anything, just message me.

     

    What type of CNC device are you making?

     

    Cabe

  • in reply to Catwell

    Hi Cabe,

     

    I ordered the CNC from the www.MYDIYCNC.com  group (I got the link from a post here at E14 and liked what they offer.).  It enables the user to mill, drill, or cut wood, plastics or light metals.  I also inquired if they were going to add a 3D print head and they confirmed that it was on their list to do.  They also have a laser head for the device, so I thought it would be an easy way for me to try some things out.

     

    The full kit was under $500 US and they have a website where you can see what they are doing and check the progress of your order.  So since mine is in the UPS system, I should see it soon.  After that I need to assemble and test it before I start getting creative with it.

     

    I plan to do at least a blog with pictures of the kit and my assembly progress.  I appreciate the offer if I get stuck, but it looks pretty straight forward and the group has been very good at responding to my questions, so I don't anticipate any problems.

     

    I have a neat, but undisclosable, project in mind.  Once I get some results, I will try to post some pictures.

     

    Thanks

    DAB

  • G'day Mate,

     

    Total neebie here, sorry if these questions have already been answered but I have searched and searched and I can not find a definative answer

    I am in the process of building my first cnc mill/router,

    I have the frame with the 3 axis, no motors in yet,

    I have a HY-JK02-M-5axis interface board it runs 5vdc, from the printer port or can use usb which is a switch on the board,

    I also have 3 YM2754 5 wire unipolar stepper motor rated at 12vdc,

     

    The questions I have is can the board run the motors, or do I require some form of switch (npn or pnp or mosfet) to power the motors?

    the motors have 5 wires but the board only has 4 terminals for each axis, how do I connect the motors to the board? I know 1 wire is common and I belive that depending on how you wire it it can have full, half, quarter, or micro step.

     

    If I require some form of switch, will 1 switch do all 3 motors or do I need a different switch for each motor?

    If I require a switch, could you do a simple circuit diagram, (I can't spell schematic, lol) and parts list for me, Obviously I could use the same circuit for each motor if I have to.

     

    Thank you or anyone who can help me in advance.

    It will be very much appreciate it.

     

    Damien