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Old 26-01-2015, 08:31 AM
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mental4astro (Alexander)
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mental4astro is offline
 
Join Date: Jun 2008
Location: sydney, australia
Posts: 4,651
Stephen, your gluing attempt and another mirror I've seen, has got me thinking about glass lamination. Not through gluing, but as you mentioned, fusing.

Not an exercise to reduce weight, but to make thicker blanks (yes, thicker not thinner), but also increase the rigidity of the resulting blank. I've seen a mirror, 16", which is laminated by fusion, in the same manner as your gluing attempt.

Starting with stress-free blanks, the heating and cooling cycles would need to be very long in order to not introduce stresses.

Interesting.
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