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Other Vintage Household Electrical or Electromechanical Items For discussions about other vintage (over 25 years old) electrical and electromechanical household items. See the sticky thread for details. |
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21st Jan 2021, 2:11 pm | #21 |
Heptode
Join Date: May 2015
Location: Bradford, West Yorkshire, UK.
Posts: 512
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Re: DC motor rewind help ?
Seems like Catch 22 , I need to unpick the top couple of windings to learn/discover the winding pattern regarding the connections to the commutator. I have already figured out that each winding covers 7 slots, i have discovered the end/beginning tails but with the whole thing stuck together, I can't get a winding off.
The "auction" site sellers mentioned are mentioning their product containing DCM with cautions are merely using such cautions to "big up" their product (and the price)
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worried about the electrons entering the circuit and the smoke leaving Andrew |
21st Jan 2021, 2:24 pm | #22 | |
Heptode
Join Date: May 2015
Location: Bradford, West Yorkshire, UK.
Posts: 512
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Re: DC motor rewind help ?
From a Newnes technical book on "Rewinding small motors"
Quote:
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worried about the electrons entering the circuit and the smoke leaving Andrew |
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21st Jan 2021, 5:38 pm | #23 |
Heptode
Join Date: May 2015
Location: Bradford, West Yorkshire, UK.
Posts: 512
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Re: DC motor rewind help ?
I found a bottle of stripper / remover in a dark corner of the garage where the BIG spider lives, lets see if this stuff does the trick
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worried about the electrons entering the circuit and the smoke leaving Andrew |
21st Jan 2021, 5:51 pm | #24 |
Guest
Posts: n/a
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Re: DC motor rewind help ?
Or pop it in the oven at 150C for a day or so...
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21st Jan 2021, 6:52 pm | #25 |
Rest in Peace
Join Date: Mar 2011
Location: Basildon, Essex, UK.
Posts: 4,100
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Re: DC motor rewind help ?
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21st Jan 2021, 9:54 pm | #26 |
Guest
Posts: n/a
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Re: DC motor rewind help ?
OK put it in a tin first, I was serious about heating it up for a few hours to degrade the enamel.
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22nd Jan 2021, 2:23 pm | #27 |
Heptode
Join Date: May 2015
Location: Bradford, West Yorkshire, UK.
Posts: 512
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Re: DC motor rewind help ?
I tried that at 190, it softened the epoxy which I was able to pick off easily, the cheapo paint stripper finished off the cardboard covering the armature slots, now I am left with the wire enamel stuck together, yesterday I gave it a good brushing with the methylene dichloride stripper and have wrapped the assembly in clingfilm for a couple of day.
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worried about the electrons entering the circuit and the smoke leaving Andrew |
22nd Jan 2021, 7:53 pm | #28 |
Dekatron
Join Date: Jan 2012
Location: Brentwood, Essex, UK.
Posts: 5,337
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Re: DC motor rewind help ?
E.M.A. Model Supplies sell dichloromethane for use as plastic solvent: £6 for a 500ml can, also available in 57ml glass bottles.
https://www.ema-models.co.uk/index.p...ent-500ml.html |