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Post by Rockindad on Mar 13, 2019 18:43:41 GMT -5
I am going to post this here as the intent is to use this for preshaping rocks for tumbling. Sure, eventually it will probably be put to use for other things but for the time being we are focused on tumbling. Am currently using a tile saw which is just okay. I would not mind using a handheld grinder outside when it is milder but my fingers no longer like the cold temps, especially uncovered. Have been looking at a Covington Wet Belt Sander link or something similar. Looking for something to be used inside so obviously water is a must. It also seems that it might be versatile enough to do other things as well. I have not found much on the site about these. I see that 1dave has/had one. Anyone else that would chime in? Other indoor alternatives. Not looking into cabbing yet so those machines are not being considered. Thanks, Al
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Post by 1dave on Mar 13, 2019 19:23:56 GMT -5
I am going to post this here as the intent is to use this for preshaping rocks for tumbling. Sure, eventually it will probably be put to use for other things but for the time being we are focused on tumbling. Am currently using a tile saw which is just okay. I would not mind using a handheld grinder outside when it is milder but my fingers no longer like the cold temps, especially uncovered. Have been looking at a Covington Wet Belt Sander link or something similar. Looking for something to be used inside so obviously water is a must. It also seems that it might be versatile enough to do other things as well. I have not found much on the site about these. I see that 1dave has/had one. Anyone else that would chime in? Other indoor alternatives. Not looking into cabbing yet so those machines are not being considered. Thanks, Al I use it from time to time to flatten the backs of stones, but my flat lap works better. The main problem with the belt sander is keeping the belt centered. It easily drifts from side to side. To the right the belt comes off. To the left, the belt destroys itself against the housing. If i had used one before I wouldn't have bought it, but I watched the big ones at glass companies and they are fantastic. But then, i can't afford nor justify owning one.
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Post by Rockindad on Mar 13, 2019 21:22:28 GMT -5
1dave that's too bad. For what it costs it should be bulletproof and dialed in. I've done a lot of woodworking from rough carpentry to fine furniture and have had numerous stationary belt sanders that were golden at a fraction of the price. Al
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quartz
Cave Dweller
breakin' rocks in the hot sun
Member since February 2010
Posts: 3,339
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Post by quartz on Mar 13, 2019 23:07:21 GMT -5
1dave, are either of the belt rollers on that sander crowned at all? Crowning the driven roller [assuming it's the adjustable one] 1/64" higher in the center than on the sides would stop the wandering. We had the same problem with the cutter infeed belts/rollers in the fingerjoint machine at the sawmill I worked at when the fingerjointer was put in, crowning fixed it perfectly.
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Post by Rockindad on Mar 14, 2019 9:36:19 GMT -5
1dave , are either of the belt rollers on that sander crowned at all? Crowning the driven roller [assuming it's the adjustable one] 1/64" higher in the center than on the sides would stop the wandering. We had the same problem with the cutter infeed belts/rollers in the fingerjoint machine at the sawmill I worked at when the fingerjointer was put in, crowning fixed it perfectly. Had the same issue on a wood sander years ago- a few light passes with a grinder on the drive roller and the belts stayed in place perfectly. Al
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