I'm going to reattach the 4.5" secondary mirror for the 12.5"
Ritchey-Chretian. It looks like there were three cork pads, about 1.5" and
these were glued to the back plate and the mirror was glued to these...I'm
thinking that three buttons or RTV might be a better choice, about the same
spacing but perhaps not quite as large...anyone have any thoughts on
this? Might it be better to put a thin bead at the edge? More cork (which
I suspect might have been stressing the mirror a bit)?
Clips are out of the question...
Thanks...BTW. the original cork pads are destroyed and it looked like the
previous owner used windshield repair cement (that yellow looking stuff
that dries hard)...it doesn't look like RTV...
Mike J. Shade: mshade@No-Spam
Director, Sonoita Hills Observatory, Sonoita Arizona
www.sonoitaobservatories.org
See work done at the observatory: http://c3po.cochise.edu/astro
under the "images & photos" panel on the left of the page
Fight wasteful and obtrusive outdoor nighttime lighting:
International Dark Sky Association: www.darksky.org
"I like the dark, it's cheap." Ebinezer Scrooge
Received on Wed Mar 2 09:48:40 2005