Rotary Parts Tumbler / Ball Mill
thingiverse
BOM:\n5mm MDF\n3.4mm Chalkboard\n1.5mm Clear Acrylic\n3mm Pan Head Screws\n3mm Nuts and Washers\n12V DC Gear Head Motor (I used a scrap printer motor)\n12V PWM\n15V Power Supply\n4x 605ZZ Bearings\n2X 3/8 Rods\n1X 3/8 Lock Nut\n2X 3/8 Nuts\n50MM O Ring for Belt (in my case)\nPower Switch\nTubing or O Rings for Rod Grip The only files not included are the laser cut pulleys, as they are motor-specific and need to be designed to fit your particular motor. You'll need to purchase them or create your own. A standard 12oz "Folgers" coffee can fits well, but it's not perfectly smooth inside, and has a good lid. Alternatively, you can use a quart paint can. For the power connector, the .AI file is formatted for a female RCA connector. Feel free to ask questions.
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