Hi. All
My KX1 running under Mach3 has been trouble free for a long time now, although I'm using it a lot. Currently I'm machining a gear case and cover plate with identical profiles. I've cut the gear case using a sub routine in incremental steps to a depth of Z-10mm with no problems. To machine the cover plate the only changes I made to the programme was to change the z depth to Z -3.3 Half way through the first cut of the profile the cutter wandered off into the middle of the plate. After feed hold, stop and rewind I returned the spindle to absolute zero, where the spindle came to rest roughly 12mm in the plus quadrent, with all the axis windows reading zero. Any ideas where to start looking?