I have been trying to sort this one out from day one. Servos seem like a complete pain in the butt. Stepper technology has gotten much better recently. I dont know which way is best for you, but my direction seems to be leaning towards BIG steppers, ie overpower the thing so that load becomes less of an issue, and missing steps is an impossibility. Ive been looking at these 1400 oz/in 1.5a, 3V steppers I found for 175.00 ea. I cant imagine running out of torque with a motor like that. I dont like the idea of having to mess with encoders and tuning and seperate drivers. If I new what servos to buy it would be easier, the whole encoder thing has lost me, and if there was a single board multi axis driver available the cost would drop from 300.00 or more per axis to something reasonable. Good luck.
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Halfnutz
(Note: The opinions expressed in this post are my own and are not necessarily those of CNCzone and its management)
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