kokosnood
starting to shine!
Member since April 2020
Posts: 37
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Post by kokosnood on Apr 20, 2023 18:58:49 GMT -5
Hi, I'm going to start buying the pieces for my homemade tumbler build. Here's the link: forum.rocktumblinghobby.com/thread/101872/simplest-homemade-rotary-tumblerI've narrowed it down to 2 motors, one 1/4 HP and one 1/3 HP. Both made by Dayton. I'm planning to turn 4 feet of tumbling space (minus pillow bearings, pulleys, etc.) I want to have my Tumbler "15 lb" barrel (when full it is WAY more than 15 pounds), 1 or 2 lortone 12 lb barrels (I currently have 1, may add one later) and 2 lortone 6 pound barrels that I have. As we all know the "12 lb" lortone barrel weighs more than 12 pounds full of rocks, grit and water. Any advice on which size motor, the 1/4 or the 1/3 hp? The rods will be 3/4" with hose on them. Thanks!
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quartz
Cave Dweller
breakin' rocks in the hot sun
Member since February 2010
Posts: 3,352
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Post by quartz on Apr 20, 2023 22:13:26 GMT -5
1/4 would be ample in my opinion, I've built some double barrel tumblers, each holding ~12 lbs. of rock, 1/4 hp Dayton motor didn't even know there was a load on it.
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mgroothuis
starting to spend too much on rocks
Member since November 2022
Posts: 167
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Post by mgroothuis on Apr 22, 2023 14:24:30 GMT -5
I, too, am building a large tumbler. I've really been studying Chuck's (Drummond Island Rocks) design. All the parts are still being shipped. I was doing some research on this today as well. I pulled the trigger on a 1/4HP capacitor start Dayton.
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kokosnood
starting to shine!
Member since April 2020
Posts: 37
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Post by kokosnood on Apr 22, 2023 19:57:13 GMT -5
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kokosnood
starting to shine!
Member since April 2020
Posts: 37
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Post by kokosnood on Apr 22, 2023 20:03:11 GMT -5
I found this quote from Chuck on another post: No need for capacitor start or run. Capacitor start would kick it off with a bang, but you really don't care if it takes a few seconds to get up to speed. Capacitor run would help if you thought you would have sudden changes in load and you didn't want it to bog down; not likely with a tumbler. Once they get rolling, they're pretty easy to drive.
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vance71975
freely admits to licking rocks
Member since September 2022
Posts: 760
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Post by vance71975 on Apr 26, 2023 7:00:04 GMT -5
Hi, I'm going to start buying the pieces for my homemade tumbler build. Here's the link: forum.rocktumblinghobby.com/thread/101872/simplest-homemade-rotary-tumblerI've narrowed it down to 2 motors, one 1/4 HP and one 1/3 HP. Both made by Dayton. I'm planning to turn 4 feet of tumbling space (minus pillow bearings, pulleys, etc.) I want to have my Tumbler "15 lb" barrel (when full it is WAY more than 15 pounds), 1 or 2 lortone 12 lb barrels (I currently have 1, may add one later) and 2 lortone 6 pound barrels that I have. As we all know the "12 lb" lortone barrel weighs more than 12 pounds full of rocks, grit and water. Any advice on which size motor, the 1/4 or the 1/3 hp? The rods will be 3/4" with hose on them. Thanks! My personal advice, Buy the highest HP motor you can afford to get IF you the means to slow it down. A higher HP "work horse" will last longer and be less stressed under load than a lower HP motor. If you can get a gear box reducer, and use the motor to drive it, that is an easy way to slow it down. My dad found a gear box reducer used for 2 bucks at an auction that is a 75 to 1 reduction, so i have a LOT of play room on what RPM motor i can use to drive it and still be slow enough to tumble. I can go all the way up to a 7200 rpm motor and still be under 100 rpm at the shaft. If you are ONLY set on between the two 1/4 or 1/3 I would go with the 1/3, but if you are willing to go up, I would personally get at least a 3/4 if not a 1 full hp motor. Especially if you plan to run a lot of big barrels on it, like a lot of 12lb or bigger barrels. Reading the rest of your post, I would DEF get the highest HP motor you can, running 12 and 15lb barrels that is a lot of weight on the shafts you want a work horse to drive that without bogging down or burning out the motor.
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