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Post by Tweetiepy on Jan 21, 2005 15:20:04 GMT -5
Hi everyone,
I'd just like to take a moment and thank everyone for all the help I've gotten on this site for a newbie like me, much knowledge here!
What I'd like to know is if someone can tell me what are the dimensions of a #1, #3 & (1 1/2 lb, #2 barrel) (do they exist?) For the time being, I don't anticipate going bigger than a #3 barrel - but who knows what may come of it.
diameter and height I guess
If I tumble in a #3 bbl, or # 1 1/2 bbl can I use a #1 for polish? If I make these, I may keep one smaller one for polish - is that advisable?
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69beeper
spending too much on rocks
Member since August 2004
Posts: 377
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Post by 69beeper on Jan 21, 2005 20:22:36 GMT -5
The dimensions of a Lortone 3 pound barrel are: width = 4.5" OD height = 4.75" without top height = 5.5" w/lid to top of nut I keep one for polish and pre polish, notice the "P" on bottom of my barrel. Here's some pics: Hope that helps. Jimmy
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Post by docone31 on Jan 21, 2005 20:23:48 GMT -5
Tweety, most machines are/were built around existing materials. If you are considering building from scratch, why not go out of the box and come up with your own dimensions? I really mean that. Stoner has a great design, you might contact him for dimensions, and make the arbor/shaft spacing for the bbl you come up with. A three lb., tumbler will recquire a certain amount of torque. A dual three lb tumbler will recquire a certain amount of torque. Each bbl will have a certain amount of rotating mass, torque is needed to overcome that mass. Friction develops from drag from rotating mass, friction in the bearings, resistance to torque from belt tension. I would go with two bbls, at least. I would use four inch PVC. Length could be determined. I found longer bbls the grit ended up in the bottom cap and I had to run longer for the same results. It becomes a trade off. With PVC, you will not need rubber lining. The best design I have seen, was one made in a diagonal. It used an uncovered five gallon plastic pail and the grit and stones rolled around the bottom edge. The basics of what you are trying to do is smooth the stones. They have to be able to roll against each other. Grit speeds up the tumbling process. The grit should be harder than the stones tumbled. It should thicken during tumbling and turn into a slurry. From that, ideas can come. Experiment, learn from your experiments. Make something new. A vibrating tumbler is a motor, engines are fuel powered motors are electric, which has an eliptic cam that produces vibration. Longer duration vibrators have the cam mounted on a seperate shaft as the vibration will tear up the bearings in the motor. For a rotary tumbler, all you would need is a base, two arbor shafts, pulleys, motor, and PVC bbls. The shafts would be turned down from the main motor speed. I bet you can do it.
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Post by Tweetiepy on Jan 21, 2005 20:24:17 GMT -5
Thank you so much for your help - much appreciated!
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