- Joined
- Jan 2, 2014
- Messages
- 8,854
It is possible to do a multistart without a thread dial. Just turn your compound 180 and dial in half the pitch. thats on a double lead..................... I really dont know how you could cut a triple lead any other way.
If turning between centres using a faceplate and lathe dog, then another method to cut double-start threads is to move the lathe dog to be driven by the faceplate slot 180 deg. away from the one used for the first thread. So for triple start you could use a faceplate with three slots each 120 deg. apart.
For the electrically minded that would be like adjusting the phase of a signal by adding a constant offset......
-brino