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If you're referring to using it with a clutch motor then no, it won't work. A clutch motor is an induction motor and there is no known easy/cheap way to make them variable speed. Which is why servo motors were developed for sewing machines.:)

That speed control works with what are often called universal motors, the types fitted to electric power tools (if the motor has brushes then it should work).

Machines wot I have - Singer 51W59; Singer 331K4; Seiko STH-8BLD; Pfaff 335; CB4500.

Chinese shoe patcher; Singer 201K (old hand crank)

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I purchased a machine that had a servo motor but it was way to fast even set at a low speed. 
I went on Amazon and found a speed reducer for $100 USD, and then measured around both pulleys (stay on outside edge of pulleys, don’t let tape measure fall into belt grooves, it’s easy) then I purchased the 2 belts need from an automotive store. It really isn’t difficult, just take your time and have a friend help. YouTube is a great source of info

Doc Reaper

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Thanks to the referral to Japan Sewing, Chris hooked me up with a new motor. And I've got to say, it was definitely the right choice. The new motor is not only able to sew slower, but its much more powerful and much easier to control- and yet so much smaller, the old motor was this big honken thing. It did come with a 75mm pulley, but thanks to the tips I just swapped it out for the 45mm pulley from the old motor. It was pretty simple and straightforward to swap the new one in. Yes, it probably would have been cheaper in material cost to dyi a speed reducer pulley set- but the time it would take me to figure out what I need, where I can get the parts, and then install it would cost me far more in time than the new motor did. Time is money ;)

All in all, things are working just like I wanted now, so I'm happy!

Posted
2 hours ago, Ashley55 said:

All in all, things are working just like I wanted now, so I'm happy!

Chris is pretty good and glad you got it to where you feel comfortable sewing.

kgg

Juki DNU - 1541S, Juki DU - 1181N, Singer 29K - 71(1949), Chinese Patcher (Tinkers Delight), Warlock TSC-441, Techsew 2750 Pro, Consew DCS-S4 Skiver

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Nothing like a happy ending.:specool:

Machines wot I have - Singer 51W59; Singer 331K4; Seiko STH-8BLD; Pfaff 335; CB4500.

Chinese shoe patcher; Singer 201K (old hand crank)

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