On Sat, 1 Apr 2017 06:46:06 -0400, "Jim Wilkins"
wrote:

"MOP CAP" wrote in message
news:2017033116392578628-email@domaincom...
On these old style stones what was the recommended SFM?
Thanks,
CP


A modern equivalent:
http://www.grizzly.com/products/Slow...ce=grizzly.com

Firefox fails to properly parse that (or the shortened version ending
in g0136.) and Griz doesn't care. "Use MSIE or Chrome" they say.

Let's see, 70rpm with a 10" wheel is 183-1/4sfm. The old 24" or 30"
farm stones ran about 15rpm, so that's 94 or 118ish SFM.

15rpm is from memory of working on one at the steam museum in Vista
and watching medieval movies with them running. About 4 seconds a
stroke was comfortable.

--
The more you know, the less you need.
-- Aboriginal Saying