Cutting the magnifying glass
 

Hello. I do not know whether the issue at ...
Photo magnifying glass, which must be cut and paste in the mandrel (the key). Ideally just do not have to, plus or minus 1 mm, slit zamazhetsya. Tried to Bulgarian, emery, breaking away. As in domestic conditions do? Maybe in the water? What? Thank you.

Why?
I have another question. I have over the years I can not find a substance that would have removed the mirror emalgamu.
And in your question, I would have tried to nail wedges .. I'm doing them all, and nails Peel, and sharpening chisels and Domestic podrihtovat something ..

Зы: they Bawa different grits (I have 2 types)
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Pilif, I'd tried on a rotating emery wheel with water.
Nata, what amalgam? If aluminum-try any acid-aluminum dissolves readily.

I doubt that either you get home usloviyah.Steklo 4mm thick cut into special machines with diamond circles.
These things poured at a temperature of 1300-1500 degrees that at home too, not realno.Esli in your city is an artist engaged in the glass, it can pomoch.No note, when filling a key need to be heated, too.
The easiest way out, take a piece of plexiglass and cut it out for size with subsequent polishing paste goi.Ili try to "swim" totzhe plexiglass and sanded.

Here at the same time I want to ask about the material, such as super-glue, which hardened, forming a transparent arhiprochnuyu surface, would be non-flammable (dreamily) and non-toxic (even more dreamily) .. Something like composite resin ..
What would it moglobyt?

NATA NOVA, acrylic.

Which? Where and how much?

In stroymagazine varnish parquet acrylic water-based.

Thank you for this course. I do not mean the liquid and the substance, plastic, with transparent solidifies me somewhere 0,5-1cm thickness should be at least ...

a thickness of just-polymerization of epoxy resins. Is not it easier to take the plexiglass, heat and bend it as you wish? or cut out of it-what you need and paste?
I think the acrylic and you can see build-mazhte yourself and mazhte.