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Electric Motors Winding and Repair Electric Motors Winding and Repair Discussion


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Old 08-25-2017, 04:11 AM   #1 (permalink)
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Default Is this mess repairable?

As in the title. One side of the stator is scorched (notice the huge glob of copper that came out of it). The insulation is damaged in a couple of places.

Maybe it can be cleaned, re-insulated and rewound successfully? I've never done a rewind before; tips appreciated.

(The rotor magnets are another question; they seem okay but I don't have an accurate way to test them.)




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Old 08-25-2017, 09:45 AM   #2 (permalink)
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I think the color in the epoxy is just a sales gimick. I'd re-coat any questionable areas with any old epoxy and start winding. Looks like a good project if your first. I'd try to just duplicate the original wind.


In the old days (like in the 1960s when I was tearing apart my motor-powered toys), before fancy powder-coated-epoxy processes were well estabilshed, a simple plastic or fiber insulator was used on the ends.
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Old 08-25-2017, 02:47 PM   #3 (permalink)
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Thanks for the tip. No issues with regular epoxy at the temperature a motor gets then?

Given that the original wind was 7 turns with approx. 1mm wire I don't think it's the easy option. I don't have a use for the motor now, but want to try my hand at rewinding.
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Old 08-28-2017, 05:04 PM   #4 (permalink)
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Although it is not needed, performing a fluid bath epoxy powder coating is not particularly fancy or complicated.
Anglers use the process quite easily and successfully to color their DIY jig heads. A lot of people even make their own bath system or buy one . They're fairly inexpensive to buy or build.

The motor shown by the op can be successfully be repaired and re wound using many different approaches.
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