Stepper Motors

If going for the smaller NEMA 14 motors, aim for the high torque option. You need approximately 1400 g.cm of holding torque or more to be safe. NEMA 14s are neater, lighter and smaller, but can be hard to get hold of. NEMA 17s are quite easy to get in the specification that Mendel needs, but are bulkier and less neat.

Below is a list of possible suppliers and motors. Please add to it. If you have built a Mendel successfully with a given motor, put TESTED after the entry.

Europe

The data sheet for the ones we used in the Mendel prototype is here. The company that supplied it is Motion Control Products Their part number is FL35ST36-1004B, though it is not a stocked item (yet) - they have to order it in. TESTED

Zapp Automation supply a good NEMA 17. Their part number is SY42STH47-1684B. TESTED

US

Interinar Electronics, LLC supply what looks like a good NEMA 17. The part number is Vexta PX243M-01AA.