I retrofitted a small Unimat Lathe several years ago to add CNC to the X and Z axes. I've now added a small DC servo motor to the spindle to allow me to cut threads. GRBL/FluidNC does not support standard lathe thread cutting canned cycles such as G32, G76, G92.
The spindle (A axis) is configured as a standard linear axis so it does not support M3, M4, M5, or Snnnn commands.
I currently have the A axis set up so that a command to move it 1mm causes it to rotate 1 full revolution. For example, if I MDI a G1 Z-10 A10 F300 command it will make a synchronized move 10mm towards the chuck and turn the spindle 10 revolutions arriving at both points simultaneously.
Does anyone know of a post-processor that will output the g-code as synchronized X, Z, A commands?
Thanks in advance for any help you can offer.
Jay
