Re: [ATM] Polishing / Figuring Simulator

["Jerry" <wa4guu@verizon.net>]

-----Original Message-----
From: James Lerch
 Subject: Re: [ATM] Polishing / Figuring Simulator
Why do you think that figuring is guess work? If you have learned from your
experience it is like driving home from work. Along the way you look and see
where you are and when you get to the turns you make them. It is
predictable.

There are many variables and it is unlikely all have been constrained.
Humans recognize when the car is pulling to the left even if they don't know
that it is because the front end is out of alignment. They correct
accordingly and by second nature. It was learned. They drive directly to and
arrive home just the same.

Figuring should be like that. For people and maybe for robots too.

Jerry 
Anything that can happen, can happen on purpose.



#1 The Pro's have been doing Computer Controlled Optical Surfacing for 30+ 
years, and have achieved a level of sophistication that allows them the
luxury 
of taking the guess work out of figuring optics.

#2 I'm pretty certain the only unconstrained (and substantial) variable left
to 
solve for is the cantilevered disk pressure distribution problem.  The
closest 
equation I can find is based on cantilevered beams, but cantilevered disks 
appear to be substantially different than cantilevered beams.

Take Care,
James Lerch
http://lerch.no-ip.com/atm (My telescope construction,testing, and coating
site)
http://lerch.no-ip.com/ChangFa_Gen (My 15KW generator project)

"Anything that can happen, will happen" -Stephen Pollock from:
"Particle Physics for Non-Physicists: A Tour of the Microcosmos"

" Press on: nothing in the world can take the place of perseverance.
Talent will not; nothing is more common than unsuccessful men with talent.
Genius will not; unrewarded genius is almost a proverb.
Education will not; the world is full of educated derelicts.
Persistence and determination alone are omnipotent. "
                                                           Calvin Coolidge





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