Just got the cross slide in last night. Today I'm measuring and designing the adapter plates and mounts and figuring out heights for the main axis. 1 question I am planning on using a stepper for the spindle ( Low rpm) and a y axis for the thread grinding. Is there a way to config mach that way. 1 time keep turning 2nd move proportionally to the z axis. ( the 2nd I can do with gcode easy enough).