Skipper
spending too much on rocks
Member since March 2003
Posts: 258
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Post by Skipper on Dec 18, 2004 22:58:23 GMT -5
I was running a batch of glass in 600 and when I went to clean it after a week, most, if not all, of the grit was still visible. After another week it was still visible.
Based on the fact that polish is reusable, I wondered if 600 was fine enough to be reusable as well.
thoughts?
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WarrenA
fully equipped rock polisher
Member since November 2003
Posts: 1,530
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Post by WarrenA on Dec 18, 2004 23:40:10 GMT -5
I reuse pre-polish and final polish when I change loads I will add a little more and "freshen" the grit I can't prove that it makes a difference but this is what I do. I know that I don't change grit nearly as often as I should so it takes me a little longer to get done but the rocks don't complain to much
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Post by connrock on Dec 19, 2004 11:39:12 GMT -5
Skipper, You can use any grit over if you can seperate it from the slurry. I played around with the idea a while back but found it too time consuming v the cost of the grit.Plus I used an awful lot of water doing it. I found the easiest method to use for seperating is to use an elutriator. Fancy name but it's real simple to make. It's a series of plastic containers,one draining into the next as if one water fall fell into a lower one and so on and so on. I used 5 ,2 liter bottles.The top bottle will hold the largest grit (it's the heaviest) and the bottom will hold the smallest (lightest) grit. Cut the bottom out of the bottle and seal the top with it's cap.Turn the bottle upside down and fill it 1/2 or lesss with slurry.Put your garden hose in it and let it run very slow so the slurry gets washed out over the edge and the (heavier) grit will sink.Make a series of 4 or 5 bottles so that one drains into the next and there you have it. Tom K
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WilliamC
spending too much on rocks
Member since August 2003
Posts: 416
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Post by WilliamC on Dec 20, 2004 13:22:09 GMT -5
Greetings All, Hey Skipper, like Tom said, if you can seperate it out you can reuse it. But might I suggest next time use maybe 1/2 to 2/3rds as much grit as you did this time, so as not to have it go to waste. I figure if I use a little bit less than needed I can always re-run the rocks again, but if I use too much it's money down the drain, or in the rockpile to be precise WilliamC
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Post by connrock on Dec 20, 2004 18:49:35 GMT -5
Hi again Skipper, I had another thought on the "left over" grit. What you may have seen and thought was #600 grit could be it (#600) broken down to a finer grit. Grit will break in half about every 7 - 10 days so what you may have seen was actually #1200 or less. If you look at the grit with a 20x jewelers loupe you can compare the #600 with your "left over" grit and see what you actually have. Tom
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Skipper
spending too much on rocks
Member since March 2003
Posts: 258
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Post by Skipper on Dec 25, 2004 16:08:11 GMT -5
Well, they often say that the simplest answer is often the most correct...my wife bought me 5lbs of 600F for Christmas, so I'll just use new each time (but less of it as per suggestion). the recycling process doesn't sound worth the time/water expenditure.
thanks all!
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