I use an external motion controller (UC 100) so am still exploring the options here .
Trying the wizard but it it comes up with an error message saying that no lead is specified in the G76 commend so am looking into that now .

My PC is 64 bit with windows 10 and connected via the UC100 controller to USB port .
Are you saying I should still be able to change spindle pulley ratios and cut reasonabe threads with this rig . If so what settings do I need .