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CNers have asked about a donation box for Cloudy Nights over the years, so here you go. Donation is not required by any means, so please enjoy your stay.

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Here's one for the Edmunds collectors.

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#1 Glassthrower

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Posted 08 November 2006 - 12:07 AM

eBay # 230047164110

It's an old Edmunds Mirror grinding kit with what looks like two 6" blanks, pitch, the whole nine yards. I was curious until the bidding started to get serious...

Could this old kit still be used to fashion a workable instrument?

Clear dark skies...

MikeG

#2 Clive Gibbons

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Posted 08 November 2006 - 11:02 AM

Hi Mike.
That kit should still be able to make a good mirror.
The abrasives don't go bad.
Just have some terpentine on hand, if the pitch needs softening.
If there's no sign of cross-contamination of abrasives, it should work out.

Brings back some fond memories of my 8" Edmund mirror kit. Made in the mid '70s... :D

#3 amkoptics

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Posted 21 November 2006 - 08:44 PM

Hi Mike,
If the blank is 1 inch pyrex, it should make a fine mirror.
Back in 1971 I turned out a beautiful f/6, using the same kit


CNers have asked about a donation box for Cloudy Nights over the years, so here you go. Donation is not required by any means, so please enjoy your stay.


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