New NEMA 17 Stepper Motor

Hardware
1

I found a new NEMA 17 Stepper Motor for sale on Sainsmart.com:

http://www.sainsmart.com/nema-17-2-phase-4-wire-1-5a-60mm-1-8-stepper-motor-with-cable-for-3d-printer-reprap-cnc.html

I’m excited because this means I won’t have to wait longer to order from a Chinese manufacturer.

The specs on this new motor look like they’ll work for Farmbot Genesis 1.1 - right? Could anybody more knowledgeable help weigh in? This is the last piece I need for our build at the YMCA!

Thanks!

2

Are you planning to run it without any encoders?
Otherwise I think you’ll need a dualshafted steppermotor :slight_smile:

3

Thanks Flink,

I purchased the rotary encoders from US Digital: Encoder Part Number: E4T-200-197-D-H-M-B

Is that what you are referring to? Will these encoders work with that motor?

I’m not very knowledgeable with robotics - and these motors have been very difficult to source. They’re the last piece of the puzzle. Everything else is ordered for our YMCA farmbot.

4

I can’t really see on the website if it’s a doubleshafted - So I guess not.

In the documentation right here, it’s pointed out that you’ll need both a primary and a secondary shaft (for the hollow encoder).

I have found these at a danish website since I’m from Denmark, but it might be easier for you to order it somewhere else.
https://arduinotech.dk/shop/stepper-motor-nema17-dual-shaft-42byghw811b/
https://www.amazon.com/NEMA17-Shaft-83oz-Bipolar-Stepper/dp/B00NZPEGZW

Good luck with your FarmBot :slight_smile:

5

I found these on Ebay. Does anybody know if they are good for Farmbot? Thanks!

http://www.ebay.com/itm/IMS-MDrive17-Nema17-Stepper-Motor-with-Built-in-Driver-Encoder-CNC-Rep-Rap-/321687413885?hash=item4ae610647d:g:pCUAAOSwRLZUKtcm

6

All my stepper motor from oyostepper.com