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 Posted: Fri Jan 10th, 2020 03:28 am
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Dezmond Goodwin
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What do you do when you're almost there and
the shrink wrap has shrunk on you? My thoughts are, friction tape with liquid electrical tape. Or just regular electrical tape. And clear insulating varnish? My first time at this and I will make sure shrink wrap as far enough away from the heat next time I knew better but didn't know just how far away from the heat. Now what?

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 Posted: Fri Jan 10th, 2020 06:14 am
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Alex Rushing
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Dezmond Goodwin wrote: What do you do when you're almost there and
the shrink wrap has shrunk on you? My thoughts are, friction tape with liquid electrical tape. Or just regular electrical tape. And clear insulating varnish? My first time at this and I will make sure shrink wrap as far enough away from the heat next time I knew better but didn't know just how far away from the heat. Now what?


I've used electrical tape once in a similar situation, and then used wax string wrapped around to tie it on to prevent unraveling. :)

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 Posted: Fri Jan 10th, 2020 07:02 am
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John McComas
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Please consider trying 3M Scotch brand #27 thermal setting fiberglass tape rather than shrink wrap.
It's designed for this type of application and I can verify it works great!
It's white appearance showing through motor vent holes can be easily changed to black by using a Sharpee.
Happy Fanning!

Attachment: 27glass.pdf (Downloaded 43 times)

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 Posted: Fri Jan 10th, 2020 01:16 pm
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Dezmond Goodwin
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Thank you Alex!

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 Posted: Fri Jan 10th, 2020 01:18 pm
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Dezmond Goodwin
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Thank you John!I picked up some this morning. 




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 Posted: Sat Jan 11th, 2020 01:13 pm
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David Hoatson
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I use 3M friction tape, as it conforms to tight areas without stressing the fragile wires as you close up the fan. As it ages, it gets hard, protecting the connection well. Plus, it is what was used originally. 

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 Posted: Sat Jan 11th, 2020 01:56 pm
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Mark Behrend
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David Hoatson wrote: I use 3M friction tape, as it conforms to tight areas without stressing the fragile wires as you close up the fan. As it ages, it gets hard, protecting the connection well. Plus, it is what was used originally. I do to for the most part,  that shrink tubing can be a pain in the butt.  

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 Posted: Sat Jan 11th, 2020 02:05 pm
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Dezmond Goodwin
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Thanks everyone!It was tough getting the tape on in such a tight area. Now I need some waxed twine and I haven't been able to find any. Hobby lobby said they have a waxed cotton cloth? Where can I find this waxed twine or should I just use dental floss?

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 Posted: Sat Jan 11th, 2020 02:20 pm
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Jim Humphrey
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Dezmond, I'm sure most Hobby Lobby places carry waxed cotton twine, or at least the ones around here do.  Also, most modeling stores, like trains and boats and etc. places carry waxed twine.  It comes in a variety of thicknesses.  My preference is the 1 mm, but my fingers don't work well with anything smaller.

Jim

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 Posted: Sat Jan 11th, 2020 02:30 pm
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Dezmond Goodwin
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Ok great, thank you Jim! I thought about checking the regular hobby stores.

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 Posted: Sat Jan 11th, 2020 02:43 pm
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Geoff Dunaway
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 One last thought , using black friction tape , you can cut the leading edge of the tape in 1/3 d's  and once started it will tear off the roll in that width. :light: U can start the tape and feed it back around & through small spaces with needle nose pliers or tweezers if necessary. Once it's down tight it doesn't need to be tied to prevent unraveling.

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 Posted: Sat Jan 11th, 2020 02:55 pm
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Nathan Britt
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I like to put a heat sink clamp between the solder joint and the heat shrink tubing. The clamp will absorb the heat before it prematurely shrinks the tubing.

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 Posted: Sat Jan 11th, 2020 03:04 pm
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Dezmond Goodwin
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The old type that I removed from the spice was around a quarter inch wide. Cutting the new tape in narrower strips is what I should have done. I might have to redo it because I think it's too thick now. That's why I was wanting to wrap it with twine to pull it tighter

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 Posted: Sat Jan 11th, 2020 06:10 pm
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David Hoatson
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I use this cord. 

Attached Image (viewed 98 times):

972CA194-2ACC-43DD-A63D-4A2FD579E888.png

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 Posted: Sat Jan 11th, 2020 11:15 pm
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Dezmond Goodwin
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I got some from West Marine Thank you all!!!!
Dez;

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 Posted: Sun Jan 12th, 2020 05:10 am
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Dezmond Goodwin
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Progress report. I jumped the gun with the insulating spray and didn't cover the white with a black sharpie. I'll do that next. Another thing, where I had lashed the wires together with the waxed twine maybe too far from the stator. Hopefully it won't be beyond the motor housing..PS, plenty of clearance with the wires in the back of the motor housing.

Last edited on Sun Jan 12th, 2020 05:12 am by Dezmond Goodwin

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 Posted: Sun Jan 12th, 2020 05:39 am
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Alex Rushing
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Nice work, Desmond! :)
Should be able to fit. Might get compressed a little, but that isn't an issue unless the wires are squishing into the windings too hard.

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