I am happy to report that after a relook at the XYZAC forward transformation, as Chris suggested, I did find some errors related to the z- and y-offsets of the C rotary table relative to the A trunnion. They have been corrected and now there is no more jumping around when changing any modes or stopping the Gcode program.
What remains to be sorted out for me is the MPG not operating in world mode, homing and touch off. How these are supposed to work is still a bit unclear to me. Thanks for the help. Rudy ------------------------------------------------------------------------------ WhatsUp Gold - Download Free Network Management Software The most intuitive, comprehensive, and cost-effective network management toolset available today. Delivers lowest initial acquisition cost and overall TCO of any competing solution. http://p.sf.net/sfu/whatsupgold-sd _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users