On Sun, 14 Mar 2010 08:32:15 -0500, dpb wrote:

Lew Hodgett wrote:
...

... I don't know what the arbor speed is now with the pulleys
switched. ...

If you knew it originally, then the new speed is the ratio of the
diameter changes between the original sizes and the new times that.


I would think you want your sawblade teeth moving within a certain
range. A faster speed for less dense wood, and a slower speed for the
harder woods.