This thread as bloody Jinxed me.!. . Been at it again today. . . . Same machine this time while setting up tool changing wine Rack was manually jogging tools into holders to get X/Y coords for Macro then MDI to next location and repeat, note the coord's, switch into text editor alter macro and repeat everything went cushty.. . . . . Then for some unknown reason with tool still in the last holder, I go and enter into MDI G0 G53 X0 Y0 . . . Anyone Spot what's missing.?? . . . . Well when you do just imagine what a 125Kg gantry powered by by 2 x 12Nm motors taking off at 30Mtr/min would do to a wine rack .