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03-16-2013, 11:25 AM
#121
How about a disc brake rotor? Is that an appropriate hardness?
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03-16-2013, 12:21 PM
#122
I'm not sure if they're cast or if they're mild steel. If they're either of those, they'd work fine. You can try. If they're too hard, the diamond just won't embed that well.
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03-16-2013, 12:40 PM
#123
Before the eyes went bad I was playing with gemstone faceting. That is why I bought the diamond poweders. The machines use copper laps for holding the diamond powder. I will admit that a copper lap can be a little procy.
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Oh, as this gets to faceting, David Barnett will certainly reappear if he sees that
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Yesterday I brushed some diamond powder on a 1/4" thick scrap of solid surface. There were no markings, so I do not know whether it is Corian or some other brand. This time I used few drops of mineral spirits to spread the dust. It works as well (for now) as the cast iron plate. How long will it last? No idea. If longer than sandpaper, I am still ahead. I doubt that the powder was worth more than 10 cents. Scrap was free. Get this with sandpaper - scrap is about 3"x9".
Metod
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