Yankee63

DC motor conversion on chinese patcher machine

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I have had a idea using parts I already have.

The motor and sprocket from a scooter. The motor is rated 300 watts at 24v DC 16.4 amp.

11 tooth sprocket and 65 tooth for wheel

I can get a variable speed controller for this motor for about $15

Is 300 watts enough at 5.9 to 1 ratio?

It is kind of a hair brained idea but I do have 2 12v marine batteries laying around.

And, I do have a 24 volt DC circuit already installed to inside my house to run inverters so I could easily install a charging station

to recharge my batteries. (they are old but I think still good)

It seems it should work in my mind.

Ideas from others welcomed.

Doug

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OK, too technical for a leather forum.

I will adapt and test.

Doug

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Could I get a idea of what wattage motor you guys run on your different machines?

My wifes machine only has a 35 watt motor and I see replacement motors rated at only 90 watts.

Just trying to get a guesstimate of how powerful a motor I may need....

Thanks all

Doug

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Yes,I think that setup would work great.

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Good, I figure at original gearing it would make a scooter move forward.

It should be enough for starting a sewing machine.

It will only cost a few hours and the $15 dollar controller that comes with the On/Off switch and separate dial for speed.

Give me a couple months to put it all together and I will display a few pictures.

I move slowly..first a drawing then gather materials and assemble.

Thanks for your input.

Doug

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Doug- your post was not too technical- but many here will use more standard parts- I have a Chinese Patcher I am using manually for now. I hope to upgrade later to something more professional- But as my skills grow I will know more about what I need and what I need to focus on.

Most folks will tell you just "Try it" and see what the results are! Im interested as well... I look forward to your results!

Be safe and as always- have fun!

Silver

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Sure thing, I understand.

I will take my time at it because I kinda like the crank...lol

I need to just spend time on the machine and get used to it first.

Doug

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In my opinion being able to hand crank sew with this machine is one of its benefits. Being able to sew one stitch at a time and be very accurate with your stitch placement is one of the things that I like about this machine. I know there are other people that have motorized these Chinese patchers but I don't think its necessary. Even when doing longer straight stitching I don't find it very difficult to operate the machine with the hand crank.

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