08-23-2017, 06:44 PM
(08-23-2017, 09:26 AM)f350ca Wrote: Think your on the right track Steve. 11.5 tpi for pipe thread is missing too.
The change gears can be pretty cryptic on some lathes, to get 11.5 tpi on my Summit requires changing out a gear but by the chart and the manual it took me an hour to figure it out.
Thanks. The only manual I have is suspiciously quiet on the subject. Only chart is the one on the lathe itself.
After a bit more research, I think the "4mm P" is leadscrew pitch (options in the manual are 4mm, 6mm, and 6TPI).
The 1.5M seems to be 1.5 module gears going by an old post I found elsewhere where someone had bought generic 1.5 module gears and they matched.
So if I had some cutters, a dividing head, some material and the skill to do it, it shouldn't be hard to make the extra gears!!
First 3 of those can be solved with $$$, but the 4th might be a challenge for me.
Guess I could always just buy some, but sounds like genuine ones would cost me more than the lathe did, and anyway, whats the point of having tools if you don't use them to make more tools.....
Steve