NC Screw cutting can be done with the Unimat without spindle sensing. ?Use a single point rotary screen cutting bit. ?There is a single Gcode that cuts a helix path. ?It cuts any diameter, pitch or direction. ?It will cut inside and outside threads. ?The major limit is the Unimat's Z Axis travel since the tap or dye cutting must be vertical.
G2 or G3 <X- Y- Z- I- J- P->
Royce