I have three Maxon DC motor 118778 just sitting around and I was wondering if they would make suitable motors for the X and Y axes of a small CNC mill. I have found very little information on these motors, but what I have found is below:
Two of them have HEDL-5540 encoders on them (the datasheet is readily available). For 50 bucks, I could put one on the third as well, and use it for the Z axis. I assume that I would want to make use of the encoders. However, I have absolutely no idea how I would make them work.
My worry is that the torque numbers look pretty anemic on these, and I am not sure how well they would fare in the application. Does anyone have any thoughts?
Finally, my plan is to use a raspberry pi with an arduino alamode, then run the drivers from the alamode. If you think these motors would work well, does anyone have any pointers as to a driver for these motors? I was looking through some arduino shields, and it seems like a 2.5A would be sufficient, so the GRBLShield might actually do the job (http://www.adafruit.com/products/1750). I was also looking at some of the drivers on Geckodrive.