Chuck,
Those steppers will be fine. You don't need two the same, if you aren't too fussy, because you can make up for any differences in the software setup. Circles etc. will be fine.
Z should not always nessisarily have the smallest stepper. If the router will be heavy, a larger one may be a good idea. The z is the only one that has to work against gravity. If you will be using a Dremel, then go with the smallest on z.
If any of the steppers are 4 wire, they won't work on a unipolar driver. 4 wire is a bipolar motor. Unipolar motors (5, 6 or 8 wires) can be driven by a unipolar or bipolar driver.
I have 3 of the largest of your motors. Those work very well. I am sure the other two will be fine as well.
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I wish it wouldn't crash. |