I had a vendor reach out to me with a good sized lot of

3D Printing
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1

I had a vendor reach out to me with a good sized lot of NEMA 17 motors. Specifically these two motors:

Minebea/NMBTechnologies 17PM-K077BP01CN
Minebea/NMBTechnologies 17PM-K374BN01CN

Are these any good for building 3D printers?

2

Need to find the spec sheets. Do the leg work, and determine the application, what type of 3d printer, what speed.

3

the 374 got an odd shaft for the pulleys , its square for god shakes ,but least you get four flats for the grub screw in the circular ID of the pulley.

4

What’s the holding torque, rated current, inductance, and resistance?

5

Link to spec sheets: http://imgur.com/a/JZkfC

6

@Ryan_Carlyle Link to spec sheets: https://i.imgur.com/sASHtg1.png
https://i.imgur.com/dfl4NRM.png

7

Those are very “slow” motors – high inductance, high resistance, will have lots of back-emf. They won’t work for microstepping unless you have a very high voltage supply (maybe even higher than 24v).

8

Wow I haven’t seen those numbers like that in a step motor. Either very bad or useless for 12V.

9

They would be good if you want low-speed motion without a lot of power draw, like a security camera or something.