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Post by mohs on Nov 26, 2012 11:49:50 GMT -5
Howdy Guys This is continuation of this thread forum.rocktumblinghobby.com/index.cgi?board=tottumb&action=display&thread=54780I rebuilt the machine basically after my disaster. New stabilizer on both sides and a new lid gasket. I just got it rolling last night As you can see it only rolls at a tilt. My best guess why is that barrel is out of round Warped by the Arizona heat common occurrence around these parts :blush: So my question becomes: will the rock only shine on one side? Ha Ha Stay TunE
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Post by mohs on Nov 26, 2012 15:27:01 GMT -5
is it normal for the barrel to bulge? I had it running all night-- cool temps but I turned it off now at noon cause the barrel is bulging to hot to roll ?
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Post by beefjello on Nov 26, 2012 15:35:55 GMT -5
Might need to burp it Ed, what are you rollin' in it?
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Post by Drummond Island Rocks on Nov 26, 2012 15:55:44 GMT -5
you are going to have to flip the barrel every day to polish both sides of the rocks ... lol. I have had some batches that had gas bulge issues but only in the first few days and a simple opening and closing of the lid takes care of it. When I have had the gas build up it has always been foamy too so I dont know if those two issues are related or not? I think obsidian was the one that sticks out in my mind as giving me those troubles.
Chuck
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jamesp
Cave Dweller
Member since October 2012
Posts: 36,564
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Post by jamesp on Nov 26, 2012 18:43:08 GMT -5
Flipping the barrel-no wonder your obsidian looks so good LOL. Tumbling glass makes gas/bubbles.
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Post by mohs on Nov 26, 2012 20:11:30 GMT -5
well....I'll have good excuse when the rocks come out less than stellar whoops...I forgot to flip my barrel....
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Post by mohs on Nov 26, 2012 20:11:45 GMT -5
mostly
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Minnesota Daniel
freely admits to licking rocks
A COUPLE LAKERS
Member since August 2011
Posts: 891
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Post by Minnesota Daniel on Nov 26, 2012 23:56:27 GMT -5
Does tipping it at an angle put some of the weight on the motor itself? In other words, does the motor touch the table top when it's tilted like that?
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jspencer
freely admits to licking rocks
Member since March 2011
Posts: 929
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Post by jspencer on Nov 27, 2012 0:56:37 GMT -5
On my rotary tumbler the free spinning shaft is a tad bit higher than the driven shaft to put more of the weight on the driven shaft. Maybe it`s just what your tumbler needs.
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Dora
spending too much on rocks
Member since September 2012
Posts: 252
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Post by Dora on Nov 27, 2012 1:57:27 GMT -5
A tilted tumbler is a very interesting situation. A good way to discard other problems will be to try another barrel with the tumbler. In the worst of cases as long as it tumbles will do. Good luck!
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Post by mohs on Nov 27, 2012 11:06:24 GMT -5
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Post by mohs on Nov 27, 2012 11:14:20 GMT -5
Does tipping it at an angle put some of the weight on the motor itself? In other words, does the motor touch the table top when it's tilted like that? Hi Daniel No. There is some clearance between the motor and table top. I have the carriage tilted by a piece of granite slab. 1-1/4 inches thick.
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Post by mohs on Nov 27, 2012 11:16:05 GMT -5
On my rotary tumbler the free spinning shaft is a tad bit higher than the driven shaft to put more of the weight on the driven shaft. Maybe it`s just what your tumbler needs. That interesting js I was wondering if the hard rubber on the shaft had worn down? I tried putting a straight edge across the shafts and they seem pretty level. They run smooth also. I bought the tumbler used and it rolled fine for a few weeks But then the Az heat and my mining disaster happened and nothing as ever been the same since :nono: Should the roller be level or a bit off center?
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jspencer
freely admits to licking rocks
Member since March 2011
Posts: 929
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Post by jspencer on Nov 27, 2012 11:36:18 GMT -5
I would probably pull the snap rings off of the ends of the shafts and slide them out a little to see if they are smooth and not pitted. Mine had leaked grit once from a barrel and had gotten in the bushings on the shaft. The turning shaft had a lot of grooves cut into it. I replaced it with a stainless 5/16" shaft I made from shaft stock from Lowes for less than $5. I used my dremel to cut a groove on th ends for the snap rings to hold the shaft in place. I`m sure it could at least use a good cleaning.
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Post by mohs on Nov 27, 2012 12:01:14 GMT -5
well I didn't remove the shafts since my spill. So I'm sure there is lots of wear from grits. But they seem sturdy & roll freely, so I'll wait to do that task-- till dire necessary. Or is that a bad plan?
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Post by mohs on Nov 27, 2012 15:32:29 GMT -5
Rocks...mostly ;D Actually Beef-- I knew what you meant. I had purchased a bucket full of tumble ready rocks from the Bit of USA fella at the Maricopa Show I think, I got a great deal and lots of rock! Mish-mash of similar hardness mohs mulligan mostly Ed
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jukerocks
starting to spend too much on rocks
Member since March 2012
Posts: 154
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Post by jukerocks on Nov 27, 2012 19:36:32 GMT -5
Seems like a lot more work having to turn the barrel every day. I like being able to just let the tumbler run for a week and not worry about it.
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Minnesota Daniel
freely admits to licking rocks
A COUPLE LAKERS
Member since August 2011
Posts: 891
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Post by Minnesota Daniel on Nov 27, 2012 19:46:24 GMT -5
Does tipping it at an angle put some of the weight on the motor itself? In other words, does the motor touch the table top when it's tilted like that? Hi Daniel No. There is some clearance between the motor and table top. I have the carriage tilted by a piece of granite slab. 1-1/4 inches thick. I know you've tried everything, and asked questions and gotten back lots of ideas, but so that I understand, does it always have to be tipped toward the motor, or does it also work tipped away from the motor -- with the motor an extra 1 1/4 inches higher? I failed to mention -- I have a QT66 of the same era, same color. I got it used. The chassis got bent in shipping, so I had a little trouble getting the two rollers parallel, horizontally and vertically. It still isn't perfect, so it runs the barrels towards the front end no matter how much I tip it the other way. Is your chassis bent out of alignment? On a flat level surface, does it teeter?
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Post by mohs on Nov 27, 2012 21:45:54 GMT -5
Seems like a lot more work having to turn the barrel every day. I like being able to just let the tumbler run for a week and not worry about it. that's normal protocol, jukes! but my life is flipping anything but normal mostly
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Post by mohs on Nov 27, 2012 21:58:06 GMT -5
Hi Daniel No. There is some clearance between the motor and table top. I have the carriage tilted by a piece of granite slab. 1-1/4 inches thick. I know you've tried everything, and asked questions and gotten back lots of ideas, but so that I understand, does it always have to be tipped toward the motor, or does it also work tipped away from the motor -- with the motor an extra 1 1/4 inches higher? Hey Daniel My barrel too-- runs towards the motor side! No matter how much I try to level it About the bent carriage. That's interesting I of thought of that. But I don't think that's the problem I'm sticking to warped, out of round barrel as the culprit. Tonight it got even stranger. I didn't run the tumbler during the day Figure its to hot. So I turned it on tonight and the barrel would hardly move :nono: I had to increase the tilt. I stuck another granite slab under it. The acute angle is now 3 inches. and it rolls if you weren't so far away we could exchange barrels via Dora suggestion
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