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Old Oct 29, 2013, 12:43 AM
darn you, kakka carrot cake.
derpron's Avatar
Australia, WA, Perth
Joined Aug 2012
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motor wire insulation alternatives

hey i have just rewound a bunch of motors and i dont have any more heat shrink left to insulate the copper wire leading off to the ESC.

has anyone tried hot glue or some sort of gap fill or sealant instead of heat shrink?

i was thinking of putting a coat of silicone sealant on the wires.
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Old Oct 29, 2013, 12:50 AM
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WadesRC's Avatar
United States, VA, Hampton
Joined Aug 2006
590 Posts
Quote:
Originally Posted by derpron View Post
hey i have just rewound a bunch of motors and i dont have any more heat shrink left to insulate the copper wire leading off to the ESC.

has anyone tried hot glue or some sort of gap fill or sealant instead of heat shrink?

i was thinking of putting a coat of silicone sealant on the wires.
I have used this with mixed results but found heat shrink works best.

http://www.plastidip.com/home_solutions/Liquid_Tape
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Old Oct 29, 2013, 12:53 AM
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C₄H₁₀'s Avatar
United States, AK, Fairbanks
Joined Aug 2009
12,520 Posts
Strictly speaking, you don't really need to cover them with anything since they're already insulated with an enamel coating. As long as you prevent them from scraping or rubbing against things (easy enough), you should be fine just adding a bit of heatshrink at the connectors and leaving the rest bare. I've got a few like this, and they're perfectly fine.

In my opinion, it's much nicer to chop off the winding wires at the stator and add some nice flexible wire leads. It's a little scary, but patience and care will get you through no problem. I've done plenty like this and haven't effed one up yet, so I guess that's a good sign
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Old Oct 29, 2013, 07:49 AM
Canadian Bacon
flypaper 2's Avatar
Kingston, Canada
Joined Jun 2004
13,171 Posts
I use Goop around the wires where they come out of the motor if they're very flexible or look questionable. Hot glue wouldn't cut it when the motor gets hot.

Gord.
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Old Oct 29, 2013, 08:28 AM
darn you, kakka carrot cake.
derpron's Avatar
Australia, WA, Perth
Joined Aug 2012
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ok thanks peeps.

ill keep em bare
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Old Oct 29, 2013, 08:48 PM
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elfwreck's Avatar
United States, CA, Oakland
Joined Dec 2002
2,352 Posts
Hey now,
Not that you need/want this but maybe tge next person ould use the info.
Liquid electrical tape works great for this.
I often use it on plug solder joints, so I have it around the shop.
RobII
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Old Oct 30, 2013, 11:38 AM
Balsa to the Wall
Deep in the East Texas Piney Woods
Joined Dec 2001
4,603 Posts
The little plastic coffee stir sticks will work in a pinch.
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Old Oct 31, 2013, 01:57 AM
Registered User
Australia, VIC, Melbourne
Joined Feb 2010
1,817 Posts
Electrical tape would also work, or any other tape for that matter. As stated by others, the wires are already insulated, you really just need a little something to protect that coating.

If it is a small motor and weight is very important, leave it bare. I have a couple of tiny motors like that <5g and they are fine (the wire on those is scary thin though ).
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Old Oct 31, 2013, 06:19 AM
Canadian Bacon
flypaper 2's Avatar
Kingston, Canada
Joined Jun 2004
13,171 Posts
I have broken a few wires on the smaller motors with the smaller wire, break right where they come out of the motor and are soldered to the wires that go to the ESC. This is why I Goop them at the outlet of the motor to hold them a little more solid. Havn't broke one since.

Gord.
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