Telescope Mirror Blank 20"

[Muppet213]

You have a lot of neat machinery and tools for your hobby. Looks like a blast. I'm curious though, you must make a lot of telescopes with all this. If it's only a hobby do you just have them all set up in your backyard or in storage?

[xFrogsharkx]

@Muppet213

A friend and me will be starting a telescope rental service in Travis County, TX.

[jamieball]

Interesting, how long does it take to grind it into a parabolic shape afterwards?

[dgalvarez]

Is this mirror made of pyrex??

Thanks

[xFrogsharkx]

@dgalvarez It's made of regular glass used in windows and such.