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Re: 40 Grit ??

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Posted by Robert May on February 3, 2000 19:05:57 UTC

Yep, it does go quickly! You do end up trading off time for a bit with that method although you need to spend the time going through the 80 grit doing it as fine grinding. I would prefer making up a diamond wheel grinder than going to 40 grit for a small mirror. Take a concrete or tile (even the 3" ones are usable for this) cutter wheel and make a cup so you can bend it a bit and get the nut into the cup of the wheel and set the assembly onto a drillmotor or a general purpose motor and by tilting at a certain angle and rotating the glass underneath, you can do a fast job of hogging out very deep curves very fast. If you look around on the web, you'll see some stuff on this technique.

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