Re: ATM Mercury flats

[PFAFF2@delphi.com (Robert C. Pfaff)]

>
>I think the real problem with testing really huge optics
>this way is in coming up with a way to safely suspend
>them above the liquid without inducing mechanical strain
>.... a non-trivial problem even for amateur-sized optics.
>
>-Kevin
>

That is an important point. For the 13" I plan to RTV the flotation
pads to the back of the primary as the mirror will be upside down
for the testing.
Hope this works. Telescope making can be interesting :-)

Bob Pfaff