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3D Printer support

anej

Hello.

So i am planning on making a 3D printer. I know that i can buy a kit and all that but i really want to build my own.

Here are some of the parts i would use:

- Extruder head: http://www.ebay.com/itm/Geeetech-MK8-extruder-J-head-Print-ABS-PLA-for-3D-Printer-Reprap-Mendel-/390993481130?pt=LH_DefaultDomain_15&var=&hash=item5b09070daa

- 4X Stepper motor (one for X, one for Y and two for Z): http://www.ebay.com/itm/1pcs-Nema17-Stepper-Motors-2-Phase-Motor-for-3D-Printer-Prusa-Mendel-Makerbot-/191081254280?pt=LH_DefaultDomain_0&hash=item2c7d548d88

- Heated bed: http://www.ebay.com/itm/1-RepRap-3D-Printer-PCB-Heatbed-MK2a-Heat-Bed-for-Prusa-Mendel-/171275126930?pt=LH_DefaultDomain_0&hash=item27e0cb0892

- Controller: http://www.ebay.com/itm/Mega2560-R3-RAMPS-1-4-REPRAP-3D-Printer-CONTROLLER-A4988-Stepper-Motor-Driver-/131057008442?pt=LH_DefaultDomain_0&hash=item1e839b3f3a

Ok. So now I don't know if that arduino + ramps is everything i need. Does arduino connect to the computer and the data is transfered through arduino or ?

Are there any additional parts that i would need ?

Here is the design of how i am planing making it (not quite finnished yet but you get the idea...): http://prntscr.com/68ep96

EDIT: Shoud i use a display too ?

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  • in reply to anej

    Gearbox? No. There are many people using direct drive in there extruders.

    Slower? No. It all depends on how fast the heater can melt the volume of plastic. While the travel distance of 1.75mm will be longer to match the volume of a shorter piece of 3mm filament, the thicker diameter of 3mm may take longer to melt the center. Pretty much equaling each other out.

     

    The threaded rod will depend on what you thread onto it. While the fine threads allow for more accurate layer height. If there is any slop or wobble moving the build platform, layer height won't matter if they aren't aligned. Fine threads also means more steps for the motor. More steps per distance equals higher detail control. More steps also means slower movement.