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Old 06-13-2004, 12:19 PM
mtlgd mtlgd is offline
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Join Date: Feb 2004
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mtlgd
Default Re: Buffing speeds & flex shaft?

Quote:
Originally Posted by Tallman
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Why is it 1/4, wouldn't it be Pi (3.14) x Diameter x RPM? Just curious...
The long form is (Dia. X Pi) / 12 x RPM = SFPM

Dia. and Pi are in inches. Dividing by 12 converts it to feet.
For general purpose Pi / 12 is simplified to 1/4.
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