Re: ATM "Astroturf" substitutes from Home Depot

[Jeff Medkeff <medkeff@c2i2.com>]

At 07:34 PM 11/5/98, Gil wrote:

>It is also an excellent material to rest large thin mirrors upon while
>grinding, polishing and figuring.

I've heard that this is used for supporting mirrors during grinding, for
supporting mirrors in a simple cell (perhaps for testing), for use as a
backscratcher, and as a covering for cement around the observatory in an
attempt to reduce the heat problems. I have used:

For supporting mirrors during grinding: A rubbery/foamlike mat that is sold
as a means of keeping throw rugs from sliding around when walked on.

For supporting mirrors in a cell: Never done that sort of cell, but I
suspect the material described above would do the job.

For use as a backscratcher: Mrs. Medkeff. (Hey, get your own! :-)

For a thermal-friendly cement covering around observatories: A product
called Kool-Deck apparently cannot be beat.


--
Jeff Medkeff          | Acting Assistant Coordinator
Rockland Observatory  | Association of Lunar and Planetary
Hereford, Arizona     | Observers, Solar Section

On the web at http://shutter.vet.ohio-state.edu/