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Re: Variable speed motors

 

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Paul I forgot to mention if ya do facebook there's a group all about treadmill motors on Shopsmith's , Some guys that have done a lot of homework & shared it .

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Was the pot from the console hooked up directly to the MC60 or did the 3 wires go to the other board first that you didn't use ? Some of those " other " boards have a 7 or maybe is a 8 pin connector that has a PWM input on it & ya can get much better control using a PWM generator from Amazon for @ 15 bucks . That could be the reason for the 120K pot instead of the I think 5K that everyone post's that they used .

Dazecars on youtube has a tube about them & there several others that have posted about these also .

animal

On 2/6/24 8:14 AM, Paul Fox wrote:

Evan -- thanks for the link to your YT channel, and for sharing your motor conversion.? You might have an opinion on or answer to something I've wondered for a while.

I used a treadmill motor to power my (wood) bandsaw some years ago.? When I did, I reused the motor controller from the treadmill -- speed control was by a simple pot, which made it easy.? But I find that sometimes the saw will bog down or even stall when it seems like the motor should have plenty of power.

Do you know, or have you heard, whether using an aftermarket controller like yours might provide more power?? Are the treadmill controllers specifically designed to be limiting in some way?? My motor's specs are 120V, 21A, 2.5HP, 7000 rpm, but the documentation I've found on the controller doesn't give specifics regarding output current.? The schematic does imply that it puts out the full 120V.? I did a whole web page on my bandsaw -- the motor/controller parts are here:??
?.? (Note that there are captions on all of the individual pictures in addition to the intro paragraph on that page.)

Any thoughts would be most welcome!

paul

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