Rotary/Rock Tumbler machine for polishing - (Small printer bed) by Billyben 3d model
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Rotary/Rock Tumbler machine for polishing - (Small printer bed) by Billyben

Rotary/Rock Tumbler machine for polishing - (Small printer bed) by Billyben

by Thingiverse
Last crawled date: 3 years ago
Here is my Rotary Tumbler for polishing printed items (eg with metal filament). I've printed on a 120 x 120 mm bed size printer.
It needs to be complete (plus the printed parts):
motor (http://www.conrad.fr/ce/fr/product/227552/Moteur-a-entrainement----12-V----Modelcraft----RB350050-0A101R----150)
fuse (http://www.conrad.fr/ce/fr/product/533788/Porte-fusible-SCI-533788-10-A-250-VAC-1-pcs)
voltage regulator for speed control (http://www.conrad.fr/ce/fr/product/222347/Regulateur-de-tension-pour-les-moteurs-electriques-et-les-motoreducteurs)
power connector (http://www.conrad.fr/ce/fr/product/735640/Fiche-dalimentation-DC-Embase-femelle-verticale-Cliff-FC681445-interieur-55-mm-1-pcs)
4 ball bearings 708.
and coupleS of 8 mm bolts and threaded rods (and washers)
There is an elastic shape to print in flexible filament over pulleys to get enought traction.
With this set up, ratio 1/1 for the gear wheels, about 30 turn/minutes at full speed (with a 100 mm container), it could be modified by adjusting the ration, it should have enougth torque. There is a 20° rotation allowed for the motor mount, so wheels contact can be slightly adjusted.
Improvements planned :
more rigidity for the gears holder
lock system for the bearings (not enought tight to keep them for long hours running without glue...)
DON'T PUT YOUR FINGERS BETWEEN THE GEARED WHEELS, it hurts.....!
https://youtu.be/G7rlCeg_deg

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