Has anyone ever considered breaking down a treadmill to make a ball spinner? I have been thinking that this would work well. The motor should be powerfull enough and with the control panel you can get variable speeds. I have seen them as low as $25 on craigslist. If I see another one this cheap I think I am going to try it.
Any input people would have would be appreciated.
I've taken an old treadmill apart and still have the DC motor and controller/drive board. I already have a Vertex single speed spinner, but I figured I could make either another variable speed spinner or something else.
It should work out fine if you can figure out the packaging and mounting the motor shaft to a ball bowl. Treadmills usually have DC motors because it's cheaper and easier to cover a full range of speeds versus an AC motor. The DC controller boards usually have a 0-10VDC input which is fed-in from the digital display based on miles/hour selection. If you don't want to use or don't have the display you can replace it with a liner taper 5K potentiometer. Put the wiper leg from the potentiometer on the DC controller board which is usually marked "P2". The outer legs go to "P1" and "P3" which are ground and 10 volts derived on the board from a DC supply. The speed will now be controlled with the potentiometer which should be linear as you turn it up/down.
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