As slowly as possible for your safety. ~500

You need enough angular velocity to overcome cutting pressure, which is
seldom significant, or scraping pressure, which can be considerable.
Increase speed if the thinner piece tries to squirm away from the tool up to
perhaps 1500. Remember that you now have nine times the energy you had at
500, so be careful.

"buck" wrote in message
vers.com...
What would be a good RPM range for rough turning a 2" square of walnut 24
inches long?
-TIA