Re: [ATM] Too Small Optics-( and flex produced optics)

["David Harbour" <scarab2@cox.net>]

The distillation of excellence ("in theory and practice"), flying wing man.

Dave


----- Original Message ----- 
From: "Richard Schwartz" <richas@earthlink.net>
To: "Jerry" <wa4guu@verizon.net>; "'Don Clement'"
<clement.focuser@verizon.net>; "'ATM List'" <atm@atmlist.net>
Sent: Thursday, June 16, 2005 9:31 PM
Subject: Re: [ATM] Too Small Optics-( and flex produced optics)


> "If one starts out thinking that everything can be done by every method
> nothing would be get done. Right.   So in the interest of success we
> contemplate what will work (right) and make choices."
>
> Yes, there is exactly one correct way to accomplish a task.    And that
one
> correct way requires the use of mirror clips!
>
> . . . Richard
>
> ----- Original Message ----- 
> From: "Jerry" <wa4guu@verizon.net>
> To: "'Don Clement'" <clement.focuser@verizon.net>; "'ATM List'"
> <atm@atmlist.net>
> Sent: Thursday, June 16, 2005 5:06 PM
> Subject: RE: [ATM] Too Small Optics-( and flex produced optics)
>
>
> The mak surfaces are aspherics that were bent to spheres for figuring?
Those
> thick meniscus mak blanks can be really hard to bend to bulge the center
of
> the concave with the hose clamp method. But never say never.
>
>
> If one starts out thinking that everything can be done by every method
> nothing would be get done. Right.   So in the interest of success we
> contemplate what will work (right) and make choices.
>
> Are you saying that you have shown that a smooth surface can only be made
on
> a sphere? Do you believe it can't be done on an asphere?
>
> Jerry
>
>
>
>
> From: Don Clement  <snipped>
>
> Then don't! However, there are a few that have maksutovs that can testify
to
> the super smoothness that can be realized with spherical surfaces. I have
> several maksutovs made by the late Max Bray that are very smooth indeed.
>
>
>
>
> If one starts out believing something cannot be done, then it probably
> won't. Just because one shows one can't get from here to there by a
> particular path doesn't mean there isn't some other path that will lead
from
> here to there.
>
>
>
>
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>
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