If you can't increase the voltage anymore then you must find the maximum IN/MIM by trial and error. Start with a slow feed rate of say "4" in/min. I don't know 'DeskNC' so you will need to figure out how to set this speed. Move the axis 20" so it will move for awhile. Can you stop the screw with your fingers? If not then set the feed rate to "8" in/min and do the same. Do this untill you can stop the screw or your stepper motors start to jump and miss steps. Back off a few in/min setting and this will be a good maximum speed of your setup.
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Thanks
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) |