I'm not so sure about the 3X cost over steppers for servos. I sell brand new 430 oz/in peak servos with 250 cpr encoders for $150 each. I don't think the cost of a new stepper is much less. The most cost will be getting three Gecko G320's. They are $114 each. But if you are already thinking of getting G201's for stepper use then going servos is not much more.
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Jeff Davis (HomeCNC)
http://www.homecnc.info
(Note: The opinions expressed in this post are my own and are not necessarily those of CNCzone and its management) |