Most of those VFDs appear to be open loop. What's normally done with LinuxCNC for closed loop spindle control? Say you want to do the equivalent of internal threading on a lathe. Is a run-out area required or can LinuxCNC control the spindle speed in sync with the Z axis so either a tap or cutter follows the threads?
Is an AC Servo (with encoder) even required on a CNC system or just open loop variable speed control? Thanks John ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
