Fastest lapping method for really bad stones..
I'm looking for the fastest possible way to lap stones. Reason: I purchased 6 crates of Arkansas stones, Of all grades. Most are junk "soft arkies" but i did get allot of black translucent and white translucent and a BUNCH of washita's Many of of which still have saw marks. I have also been picking up a wide variety of stones at flea markets/antique malls. Some of which need up to 1/8 inch lapped off...Yesterday I received a Dmt 325 (course). I quickly found out this was not very fast. I seen a DMT extra extra course 8 inch plate. But for 80$. I don't want to risk it,, and thought I better start asking the experts..
So I guess my question is. What is the fastest method for lapping? What do the commercial operations use? I have a 8 inch flat disk attached to a motor, but really that's is not any faster. And the fact that it runs at 3600 RPM. Is killing me...I keep chipping stones. I think if I can get a slower motor that might help....
Is there an advantage to using diamond? Or should I just go buy some 40 grit sandpaper from the auto body store
So far the fastest method I have found is rubbing them on the concrete porch.. :). It takes up to an hour sometimes to get past the bad spots...
Help
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