- Joined
- Jun 23, 2011
- Messages
- 786
I'm making a 5C collet closer for my lathe. For the draw bar, I need to create an internal thread to grab the 1.238x20 external thread on the OD of a 5C collet.
I'm having a senior moment and can't seem to figure out what the ID of the workpiece should be bored to in order to cut these threads. Help!
I remember there's some way to compute it, but I can't remember how.
Any speedy help would be appreciated as I'm on hold until I figure it out.
Thanks!
John
I'm having a senior moment and can't seem to figure out what the ID of the workpiece should be bored to in order to cut these threads. Help!
I remember there's some way to compute it, but I can't remember how.
Any speedy help would be appreciated as I'm on hold until I figure it out.
Thanks!
John