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Post by Rockoonz on Sept 21, 2024 9:53:26 GMT -5
We are rolling again for the first time since 2019, we think. That was about the time the automotive heater hose gave out on our tumbler base, which was ready for new parts anyway. The base before pic, more like during disassembly. Assembly: Newish plywood, painted this time, actually from a built in shelf setup in our house that became a closet. Pulleys are from Amazon. Pre-greasing bearings and using the shaft to move them up/down/sideways to make sure the self aligning feature is free enough to work and not end up doing the damage to the rod shown from running misaligned. And speaking of rods, when looking for 3/4" steel shaft don't get these, I had to return them because 0.732" is not 0.75". In fact, you might notice one rod is a little long. It came from the huge tumbler base and I plan to return it after I find a proper piece of 3/4", probably after I find out if the big base needs replacements when it gets rebuilt to sell. And finally the official start up.
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Post by Rockoonz on Sept 21, 2024 9:58:23 GMT -5
BTW the heater hose did not work well at all with the 40# barrel, this is fuel line and I hope it is more durable. I'll check back in after a week or 2.
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Post by HankRocks on Sept 21, 2024 10:21:51 GMT -5
Rockoonz Your rebuild looks great. What size motor did you use? Henry
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Post by cabby on Sept 21, 2024 10:23:14 GMT -5
Nice! What RPM do you use for tumbling? Assuming I need to treat the barrels as a third pulley diameter when building?
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Post by Rockoonz on Sept 21, 2024 14:01:44 GMT -5
Nice! What RPM do you use for tumbling? Assuming I need to treat the barrels as a third pulley diameter when building? Kinda yeah, kinda no. I see a lot of barrels of different diameters that will all fit in the base with Lortone and Thumler, so I went with calculating the surface speed of the outside of the roller that the barrel sits on. I had a spreadsheet and everything, but the laptop it is all on has pretty much died. The surface speed on this combination is about 70 feet per minute based on a calculator, and I just timed a minute with a timer and it is 23RPM, calculator says it should be 29 so either motor is slower or there are errors in the calculator I used. With the small pulley on the motor it may also be slip. At any rate I think it should run at least a little faster.
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Post by Rockoonz on Sept 21, 2024 14:06:51 GMT -5
Rockoonz Your rebuild looks great. What size motor did you use? Henry It's a 1/4HP, way more than it needs but the smallest I have been able to find with a base mount. 4.8A rating and with all the torque multiplication from belts and rollers about 0.5A would be more than adequate and lower power consumption. Still shopping, when I can find one I like better this one can go directly to a trim saw.
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