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Rotary tumbler

by eirikso Apr 14, 2018
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This looks like a great little tumbler but yours is going WAY too fast! I happen to have an adjustable geared motor made for large model trains. I can set it for a far more appropriate RPM (10) than the 75 RPM you are using. I am looking forward to trying this very straightforward design.

Did you use a battery for that? Can you show the electrical part? Thank you

I am running it for many hours so a battery would not last long enough. The only electrical part is the motor. You can see it in several of the images.

I am running the motor using a 12V adapter.

Do you mind to show the adapter too and put a link? I need to do the same but I don’t know how. So you directly connected to the electricity plug through the adapter

The motor can run on 12 to 24 volts. It will run faster on 24 volts. But I think it works fine on 12 volts.

I bought my adapter in a Norwegian shop. But something like this will do:

You need to cut the cable, measure with a voltmeter to find plus and minus and then connect plus to the red cable on the motor and minus to the black cable on the motor. I also connected a switch to the plus cable so that I can turn the tumbler on and off without connecting and disconnecting the adapter from the mains.

Thank you very much. I appreciated

Great piece of work!

I have ordered all the stuff and started printing mine now. A couple of more espressos, and the box will be empty too ;)