I too would like to know... I assume one just drives the spindle with S/D just like a big, fast rotary axis.. but setup as the spindle in Mach.
I also have a question regarding using a large Fanuc AC servo +VSD-A for the spindle drive on a 5C collet size lathe (to allow A-axis positioning). Fanuc is a 10s/3000 rated 145V, 15A (stall) 12nm torque (stall). Will trying to drive it like a "ridged" axis make it error out all the time when taking cuts? I assume I would make the fault range (step +/- range) about as large as possible, to allow the spindle/drive time to correct before faulting when taking cuts?? |