On Wed, 17 Aug 2005 23:19:39 GMT, Ecnerwal
wrote:


Cranking up the speed is a crutch, and mostly a modern-era crutch.
Doubly so if you're not doing production turning where 5 minutes more
time will impact your income in a bad way. Some expert has claimed
(IIRC) that you need never turn above 1000 RPM (or was it 300?). I'd
certainly rather have a lathe that went from 100 to 1000 than 500 to
5000.

I think speed is a relative thing.. I've turned small goblets (3/4" - 1 1/2"
diameter) at 850 or 1,100... but when I'm roughing a 12 inch bowl, I wish the
Min. speed of my lathe was a lot less than 450....

I've considered changing the pulleys, since it (jet 1442) has 8 speeds and I've
never used anything over the 4th speed... I can't imagine turning ANYTHING at
3,000 rpm..



mac

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