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My little lapping stone.
I picked this up from a former quarry/stone manufacturer that shut down. I still don't have the system setup so I can leave it alone, I have to feed the Grit by hand. But hopefully when I get time I will get something figured out. I know how it was setup originally but that just takes up even more room. The table itself is 4 feet, and the cast iron disk is 32"
http://www.youtube.com/watch?v=qS5Hk...e_gdata_player
The brick is just there because I don't have the dividers adjusted correctly. The smaller stones get caught under it and get broken,
http://img.photobucket.com/albums/v4...13eca84bab.jpg
http://img.photobucket.com/albums/v4...96ddf035e7.jpg
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Very cool! Is the powder just sand? Or some specially formulated lapping powder?
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Yes it's special powder, I purchased it with the lapper. I don't 100% know what it is, but I paid 50 bucks for a 5 gallon bucket that was 3/4 full. hell it might be old Ark'y dust for all I know. I can reuse it for some time, as it collects in a bucket. Eventually it will get worn down and turned to a very fine powder. Which is still cool, becuase I can then have several grades of grit.
Silicoln oxide I assume. I think that is what they told me.
Then when I got the lapper home and lifted the lid I found another 10 gallons of powder inside the machine. So I probably didn't need to buy the first bucket, the seller didn't know it was full.
I wish I knew how to sift it and separate it by grade. I use a window screen to get the big particles and broken pieces of stone out. I have seen brass sieves online but I think those are still to big to do me any good. I am new at this so certainly no expert.
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I'd normally say that that is overkill, but I've seen the pics of all your Arkies and other hones. In your case it might not be enough.:p
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Nice machine but noisy I assume :D No need to lap the sides of the stones.