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Post by connrock on Aug 6, 2013 7:33:52 GMT -5
Pretty cool lid! Dunno if this is an actual load or just a lid test but if it is an actual load I would say the barrel is too full! connrock
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panamark
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Post by panamark on Aug 6, 2013 13:49:20 GMT -5
Pretty cool lid! Dunno if this is an actual load or just a lid test but if it is an actual load I would say the barrel is too full! connrock Strange as the still photo just above the video looks about perfect in my inexpert opinion. But there's not a lot of material motion on the video so it does look slightly overfull. Maybe the drum was not level? Or maybe, this clear lid is an innovated way to learn that things when tumbling aren't what we think. Perhaps the volume expands when moving - makes sense.
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Post by connrock on Aug 7, 2013 7:30:25 GMT -5
Mark, Listening to the barrel when it's running is a great way to tell what's going on inside. If nothing else,,,,load a barrel you know is too full and run it and listen to the sounds it makes. Now load it to the correct volume and listen again. You don't need grit in it for the test but I would put the water in.
When I ran all 9 or 10 of my rotary tumblers I could walk by the bench and know exactly what was going on in each barrel! connrock
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Geoff
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Post by Geoff on Aug 7, 2013 9:41:42 GMT -5
It is over full, but over the course of a month the hammer broken stuff breaks down enough that its about half full.
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jamesp
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Post by jamesp on Aug 7, 2013 9:46:25 GMT -5
Lexan = bullets bounce off-especially 22 longs nice cap
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panamark
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Post by panamark on Aug 7, 2013 16:43:14 GMT -5
Well the lid on my Thumbler AR 12 just wore out. Luckily I noticed it was very, very thin during a recharge so I caught it before it made a terrible mess. I am a bit disappointed because the barrel and lid only have about 100 days on it since new! I called Thumber/A-Metals and asked the guy about it. He said, "oh yeah they wear out". I asked "within 100 days?" He said, "yes, depending on what you are tumbling." Well I think 100 days is pretty pathetic, even if I was tumbling fresh crushed diamonds & agate every day. Anyway, I am going to get some rhino-spray (or other spray on rubber) and line the center inside of the lid with rubber (avoiding the edge for sealing problems). I am thinking a rubber padding like other companies have should prolong the life of the lid. If that doesn't work, then I will go to some thicker high-impact plastic. I would have done this now, except I am not set up to cut that big of a perfect circle (wanna be sure it seals). Anyone else struggle with this and found a good solution. I like your clear lid Geoff, but a)I can't cut that perfect a circle, b)I get seasick watching it LOL
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Geoff
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Post by Geoff on Aug 7, 2013 22:52:56 GMT -5
My first one wore out that fast. Crappy design. My second one was wood. Lasted six months, next was 3/16 plexi, almost a year. Prolonged it with gorilla tape. Thus one I cut on my trim saw and trued on the flat lap with a 60 grit disk.
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Post by jamesp on Aug 8, 2013 3:57:15 GMT -5
The white sch 40 PVC wore thru to the grey sch 80 sheet glued to the end cap. Just keep gluing 1/8 inch grey PVC to the end. 1/8 last about 8 months to a year. At fast speeds and hammer broken mohs 7 stuff. Lexan sounds like better plastic. It does not glue well though. ![](http://farm8.staticflickr.com/7359/8717389002_bb8b2cee37_b.jpg) The light gives up the wear profile. 90% is solved by gluing a little 4 inch pvc sheet to the inside of the 6 inch end cap. But the sch 80 pvc comes in all thickness' but is expensive. I found 1/4 sheet at ind junk yard 3' x 8' for $40. Probably $180 new... Depending on the diameter of that Thumler you could cut the pvc out of the end of a 6 inch sch 40 pvc end cap ![](http://farm8.staticflickr.com/7389/8716393151_1274b1fa4c_b.jpg) More views in this thread forum.rocktumblinghobby.com/thread/56106/finished-pound-capacity-barrel-inch
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panamark
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Post by panamark on Aug 8, 2013 10:57:02 GMT -5
Great advice guys, thanks! I have a piece of 1/2" plexiglas I salvaged. I will make a lid out of it and it should last a long time. Just.....don't.......look......into....it.......Mark ..... blahhhhh. ![(puke)](//storage.proboards.com/forum/images/smiley/sick.png)
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snuffy
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Post by snuffy on Aug 8, 2013 11:18:34 GMT -5
I fixed my thumler lids by building up a layer of plastidip,1/16- 1/8 inch thick on the inside of the lid,last longer than I will! Tape the edge of the lid about a 1/4 inch where it seats.
snuffy
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