开云体育

Hello Dick:

I'm sure it is in the files, but the concept is simple.

Mount a chuck where the pulley is, the threads are M12x1. Put a rod with the pitch you need, any diameter will work.

Use a bracket to mount a nut on the rod. Leave the quill unlocked so as the spindle turns it advances with the threaded rod.

It is best if you can include a crank on the end of the threaded rod so you can crank the part back and forth as you advance the threading tool.

This set up is good for 25mm of thread at a time, and then you can move the threading tool for more length. Use the carriage to "re-time" the tool to the thread.

Good luck, Carl.