Step/Dir spindle sends out a scaled constant step/dir pulse to control the
speed of the spindle. It is ramped up and down just like a motor. The
thought was I could use a Gecko320 and a 1-2HP servo motor as a Lathe
spindle motor. Not only could I get a very low speed, but I could do 3d
images on the lathe by moving the spindle as a controlled axis for 3d work.
I will eventually get there some day. (I even have the Gecko320 waiting for
it.)
Art
www.artofcnc.ca
