[crz]

Man! How the hell do they polish that?

[minnesota_bound]

#13 Since it is in Chile I am guessing with chili powder....

[BwanaNdege]

We looked into making our own 8” mirror so the kids could see Halley’s Comet back in 1986. The basic grinding process was simple. As you got closer to the final surface shape, you had to wet the surface to make it reflective, then look at a sheet of graph paper placed several feet away.

Any mirror distortion was evident in the reflected image.

Once the reflected image was correct, you had to send the mirror off to have it coated.

We ended up buying an 8” silvered mirror and constricting the rest of the telescope.

http://www.scopemaking.net/mirror/mirror.htm

[mabarker1]

VERY, VERY CAREFULLY with Fine Polish Compound and LOTS of furry Bunny 🐰 wabbits. You hold them by the feet, dip their back into the Compound just a bit and Start Polishing.

[LonePalm]

Man! How the hell do they polish that?

HiLIARy with a cloth?

"Ceterum censeo Islam esse delendam."

Garde la Foi, mes amis! Nous nous sommes les sauveurs de la République! Maintenant et Toujours!
(Keep the Faith, my friends! We are the saviors of the Republic! Now and Forever!)
LonePalm, le Républicain du verre cassé (The Broken Glass Republican)