quartz
Cave Dweller
breakin' rocks in the hot sun
Member since February 2010
Posts: 3,341
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Post by quartz on Mar 6, 2010 10:16:45 GMT -5
Don't know how to put 2 pcs. at once, only got one, here's the other side. Note, no guard, we run it in a closed building not avaiable to visiting grandkids. A friend has a cat w/kinked tail from an encounter with a v-belt drive. Belt guards are advisable. Attachments:
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Post by rockrookie on Mar 6, 2010 19:49:06 GMT -5
nice looking tumbler . i cant help chuckling about the cat . don't get me wrong ... i like cats . but, man they get in tough spots . --paul
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WarrenA
fully equipped rock polisher
Member since November 2003
Posts: 1,530
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Post by WarrenA on Mar 6, 2010 22:17:23 GMT -5
Did you construct the barrels also??
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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 Mar 8, 2010 23:19:09 GMT -5
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rocksndahead
off to a rocking start
Member since October 2010
Posts: 21
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Post by rocksndahead on Mar 8, 2010 23:27:36 GMT -5
That is one great looking tumbler!! Gives me a few ideas too!!
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Post by Rockoonz on Mar 9, 2010 2:09:14 GMT -5
Is the inside smooth or is something glued to the pipe to act like an auger?
Lee
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baojiazhi
starting to shine!
Member since October 2008
Posts: 40
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Post by baojiazhi on Mar 9, 2010 16:25:41 GMT -5
Great tumbler! I need to make some barrels based on your design.
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NDK
Cave Dweller
Member since January 2009
Posts: 9,440
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Post by NDK on Mar 9, 2010 21:37:17 GMT -5
The main road where mine runs to is getting re-done this year. They'll be adding storm sewer, so I'm hoping to get some end pieces of the PVC water pipe. I had wanted to try to make barrels, and never thought of the thickness of the pipe being helpful in the construction.
Thank you, Quartz, for your in-depth explanation of your construction. It will save many people a lot of time in future builds!
Nate
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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 Mar 9, 2010 22:32:39 GMT -5
In reply, the tumbler barrels are smooth inside to replicate natural action as seen at the ocean, where rocks are rolled up the beach by wave action, and pulled back somewhat by the receding water. Augers and kickers, in our opinion, act to beat the rocks up by banging them together. All of our reading and what we learned by experience says a smooth rolling action is desirable. This is largely speed dependent. To anyone wanting to build their own barrels, use pipe of 7/16" minimum wall thickness, thinner doesn't allow enough room for screws to grip and still leave room for any wear. Thicker is better. Should someone come up with a better way to make this type of barrel, please do post it: always willing to learn. For those interested in this basic barrel style, but not as big, I found 6" plastic electrical conduit to be fairly available and quite durable. I used plastic end covers with 8 holding screws. 9 5/8" long gives one gallon capacity. Made a double barrel set for a friend that he has run nearly steady for 1 1/2 years, and is totally pleased with it.
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