playin4funami
noticing nice landscape pebbles
Member since March 2011
Posts: 87
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Post by playin4funami on Apr 5, 2011 16:38:47 GMT -5
I am about to make a barrel for an outdoor tumbler, I have both 10 inch steel pipe and 10 inch pvc on hand, which would you prefer? why? Do I need anything inside the barrels to prevent a sliding effect of the stones. also has anyone used like a tractor tire inner tube to make seals and will they hold up for a tumble or two? still building the tumbler will keep and post up pics when all done!
some background info It will be in either the garage or an outbuilding, and my nearest neighbor is over a mile away so not much noise worries, it will be used almost exclusively for rough stage one material, and I am expecting to be able to run around 30 lbs of rock. I have welder,torch,saws and all the tools I need to cut and create so the build is not an issue.
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Post by johnjsgems on Apr 5, 2011 17:27:08 GMT -5
I think PVC would last longer.
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Post by jakesrocks on Apr 5, 2011 17:35:55 GMT -5
PVC will be quieter too.
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quartz
Cave Dweller
breakin' rocks in the hot sun
Member since February 2010
Posts: 3,341
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Post by quartz on Apr 5, 2011 21:44:23 GMT -5
Somewhwere on the net is a description of the chemical reaction between steel and water that makes gas, enough to blow the seal on a barrel; not advisable to use. Not going to mention the noise. I've now built 10 tumblers and several extra barrels from one quart to 5 gallon size, used innertube for gaskets on them all, and it works very well. The innertube gaskets will last way more than a couple tumbles. The gaskets need to be made as a ring, rather than solid across. Experience [personal] has shown a solid gasket will wear out in the center, creating a great grit and rock trap. Use gaskets on both ends of your barrel. I run the barrels round, no kickers, and use the speed to get proper tumbling action
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Post by Jack ( Yorkshire) on Apr 6, 2011 1:01:49 GMT -5
I Made afew tumblers and barrells Like Quartz above I used thin Rubber matting to line the paint tins and you could do the same in the 10" steel pipe I also used plastic ends and a wood insert on the lid Jack Yorkshire uk Ps Check out this link on Home made Lapidary stuff its great tomaszewski.net/Kreigh/Minerals/Homemade.shtmlHave a good day
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stefan
Cave Dweller
Member since January 2005
Posts: 14,095
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Post by stefan on Apr 6, 2011 10:11:27 GMT -5
Steel will also add too much weight- you will need to use a bigger motor. Go with the PVC
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jspencer
freely admits to licking rocks
Member since March 2011
Posts: 929
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Post by jspencer on Apr 6, 2011 22:59:03 GMT -5
I would also go for the pvc but you might need to line it with a rubber lining for padding. Thin sheets of rubber insulation can be used or a Rhino lining will also work. It will keep the pvc from grinding away with the rocks and grit.
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Post by connrock on Apr 7, 2011 8:14:27 GMT -5
I would say PVC as well but don't forget that when using a perfectly round barrel you have to turn at a faster speed then the barrels that are multi-sided.
You mentioned running 30 lbs of rocks in a 10" barrel.In a guess,I would say that the barrel would have to be about 30" long to fit that much weight in rocks in it?
I'm not positive but am almost certain that I read somewhere that a barrels diameter is directly relative to it's length for a proper tumbling action to occur?? I "think" it had something to do with the bigger rocks and smaller rocks separating which actually slows down the process due to less surface contact between the mixed size of rocks load.
connrock
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