dkurtz
having dreams about rocks
Tumbling to de-stress from my work. :)
Member since February 2010
Posts: 66
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Post by dkurtz on Aug 7, 2011 23:34:11 GMT -5
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Post by johnjsgems on Aug 8, 2011 8:44:19 GMT -5
I can only download the bottom one. If I'm not mistaken, i looked into those and the impressively low price does not include a drum. Or are you planning on running multiple QT12 drums?
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Post by Jack, lapidaryrough on Aug 8, 2011 11:12:16 GMT -5
Barrel size should have a wider diameter then the width, the material has a better slope to move on causing a faster cutting action with the grit. slope of the tear-drop in the rolling action of the stone has a higher rate of fall an a steeper angle to grind with in the slope of the rolling action. Most often factory made tumblers run to high of RPM, for the wider diameter barrels.
And the pipe design of most tumbles - I think is a waste of material to use them.
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Post by Hard Rock Cafe on Aug 8, 2011 12:11:40 GMT -5
I made my own 50# tumbler with a 10" PVC barrel. I get better grinding from it than with my 15# hex side Star Diamond (same as Thumler's 15#). Of course, I did put in sleeves over the threaded rod inside the barrel; they improve the tumbling action quite a bit.
Chuck
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dkurtz
having dreams about rocks
Tumbling to de-stress from my work. :)
Member since February 2010
Posts: 66
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Post by dkurtz on Aug 10, 2011 1:50:01 GMT -5
Thanks for the replies.
David
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charles kuchar
spending too much on rocks
getting ready for the second coming
Member since November 2010
Posts: 300
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Post by charles kuchar on Aug 12, 2011 9:50:42 GMT -5
do you use the same motor with a home built tumbler container? i would like to make a bigger barrel for my 12# thumbler tumbler and use the same base. charlie
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Sabre52
Cave Dweller
Me and my gal, Rosie
Member since August 2005
Posts: 20,463
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Post by Sabre52 on Aug 12, 2011 15:41:53 GMT -5
I'm running one of the 35# Ball Mill tumblers from MJR. Really like the rig a lot. It will not however run two 12# lortone barrels as base unit is not long enough. I run one twelve and one six pounder on it and that works swell. It should also be mentioned that this rig turns high rpms so is a bit rougher than most large tumblers. It is great for the coarse grind phase though as it rounds rocks fast....Mel
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Post by Hard Rock Cafe on Aug 15, 2011 13:15:52 GMT -5
Hey Charlie,
I guess it depends on how much bigger you're going to make the barrel. You could probably go to 15 lbs. without much trouble, but if you go with a much bigger barrel you'll need more horsepower and you'll need to switch out the pulleys to get the proper RPM.
Tumbler bases are simple to build, so you might save yourself some aggravation and go that way. Besides, then you'll have 2 tumblers.
Chuck
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