Re: [ATM] Making an exisiting mirror thinner

[Dominic-Luc Webb <dlwebb@canit.se>]

One inch is a huge amount of full thickness to remove. Try
cutting it in a tank with something like a hacksaw blade
using a motor (this will take time). With the extra glass,
I presume it is some kind of optical glass, you can make
all kinds of things.

Dominic Webb


On Tue, 9 Oct 2007, Chris Todd wrote:

> Let me preface by saying that I've been lurking on the list for
> probably a year, but have never actually ground glass.  So I will
> probably show my ignorance by asking what is probably a stupid
> question:
>
> If you had an existing full-thickness mirror (ground, polished, and
> coated), and wanted to make it lighter by making it thinner, would it
> be possible to simply grind off the back of the mirror?  For example,
> take one inch off a two inch thick mirror?
>
> At first blush, this sounds like it should be easy, but I'm guessing
> there are probably practical difficulties in pulling it off (e.g.,
> without getting grit on the polished front surface).  Then again, how
> long would it take to grind one inch of glass?
>
> Thanks in advance for any answers you provide,
> Chris Todd
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>

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