Andy Pugh wrote: > On 21 April 2010 16:48, Jon Elson <el...@pico-systems.com> wrote: > > >> It is worthless without the index. >> > > Not entirely worthless, you could still use if for closed-loop spindle > speed control. This actually makes some sense with a geared head like > the Bridgeport. My mill has two gears, but it doesn't matter which one > I engage, EMC2 still gets the right spindle speed as long as it is > within the speed range of the selected gear. I have considered adding > a couple of LEDs (physical or pyvcp) to indicate when I would be > better off in a higher or lower gear. > > I have 8 "gears", really 4 belt positions and direct-drive or back-gear. I've been thinking of putting a microswitch on the backgear handle and some long-distance photo detectors to sense the belt position. Then this would feed into a HAL mux to select the right calibration factor for the spindle VFD.
Jon ------------------------------------------------------------------------------ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
