Re: [ATM] DC Motor for grinding machine question

["Don Clement" <don_clement@charter.net>]

D. Fundo wrote:
> If polishing, and subsequant figuring, were a "single pass" finishing
> process, this might be true.  I see it as a non-issue if the motion is
> sufficiently random, and the duration is sufficiently long.  Any
> periodicity should be lost in the process.

A periodic component of a polishing machine will manifest itself in the
surface finish even if there are "multiple passes". Length of time only
reinforces a  periodic components effect on surface finish. Even the
artifacts from the periodic arraignment of a ball bearing race can show up
in surface finish. The "non-issue" caveat of "motion is sufficiently random"
is the key and is why we don't typically see amateur polishing machines
replacing hand polishing.



Don Clement

Running Springs, California

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