Tag Archives: grinding of glass

Grinding

I will not duplicate messages, which is a lot about grinding mirrors for telescopes in amateur conditions. Instead I will focus on errors, that most beginners make when grinding cutters. PHASE . Before you start sanding it is essential to carry out phase on the ground. … Read more

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Grinding and polishing powders.

POWDER GRINDING. The most commonly used powder is silicon carbide sanding (SIC) Zwany Karborundem. This material is obtained by artificially, having a color from greenish to black, which comes from pollution (pure is colorless).Its hardness on the Mohs scale is about. 9,2 do 9,5 … Read more

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