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Re: [ATM] Voice coil actuators was: DC Motor for grinding machinequestion
>
> --- Mike Lockwood <melockwo@uiuc.edu> wrote:
>
> ...snip
> >
> > Don believes these periodic vibrations might have an
> > effect on the
> > surface roughness of the mirror. Personally, I
> > don't, but I've been
> > wrong before!
> >
Dale Eason wrote:
> Carl Zambuto mirrors have a well deserved reputation
> of been extraordinarily smooth with no ripple. They
> are figured entirely on machines. I believe they use
> no special device to eliminate periodic error.
Q.E.D.......................................................................
........NOT!
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