Author Topic: Takedown Sleeve Question  (Read 1653 times)

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Offline Will B

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Takedown Sleeve Question
« on: August 31, 2022, 04:26:57 pm »
I’ve made a half dozen takedown selfbows using the steel sleeve with one and/or two brass sleeve(s).

My question is:

Do I need a thin gasket material between the two limbs?  On my past builds I have placed a thin piece of rubber between the limbs. The bow I’m currently working on has a nice fit without it so I’m not sure if it’s needed or not?? 
Thanks for your thoughts.
Will

Offline Hamish

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Re: Takedown Sleeve Question
« Reply #1 on: August 31, 2022, 07:42:16 pm »

I wouldn't have thought it was necessary for the sleeves to have gasket. Unless the gasket is helping fix an issue like a shim to get proper, consistent seating depth when assembled, then I wouldn't bother.

None of the sleeve set ups I have seen in assembled bows have a gasket, though I have heard of people doing it.

Offline Pat B

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Re: Takedown Sleeve Question
« Reply #2 on: September 01, 2022, 12:46:21 am »
I doubt a gasket would have any affect on the bow. The strains in the bow from brace to full draw to release are a
lateral, front to back, side to side and unless the butt ends make a noise during the draw or release it shouldn't be necessary.
Take this from someone that has made only a couple of sleeve type takedowns. 
Make the most of all that comes and the least of all that goes!    Pat Brennan  Brevard, NC

bownarra

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Re: Takedown Sleeve Question
« Reply #3 on: September 01, 2022, 03:58:04 am »
Doesn't matter. In fact it would be better without one :)

Offline lleroy

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Re: Takedown Sleeve Question
« Reply #4 on: September 01, 2022, 04:09:28 am »
It could be that you need one between the brass and the iron one.
(Like you need a non-conducting separator when you connect a copper pipe to a steel pipe)
IIRC, there is some chemistry going on between the copper (in the brass) and the iron (in the steel)

Offline Will B

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Re: Takedown Sleeve Question
« Reply #5 on: September 01, 2022, 07:09:27 am »
Thanks for all the advice. Much appreciated  (-S

bownarra

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Re: Takedown Sleeve Question
« Reply #6 on: September 02, 2022, 02:22:57 am »
It could be that you need one between the brass and the iron one.
(Like you need a non-conducting separator when you connect a copper pipe to a steel pipe)
IIRC, there is some chemistry going on between the copper (in the brass) and the iron (in the steel)
A smear of grease is a much better idea than adding a shim.

Offline Will B

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Re: Takedown Sleeve Question
« Reply #7 on: September 02, 2022, 07:41:29 am »
I use paraffin wax between the sleeves.

Offline Pat B

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Re: Takedown Sleeve Question
« Reply #8 on: September 02, 2022, 10:02:15 am »
I don't think I'd use anything thick like paraffin wax. Maybe a light machine oil would be better.
Make the most of all that comes and the least of all that goes!    Pat Brennan  Brevard, NC

Offline Will B

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Re: Takedown Sleeve Question
« Reply #9 on: September 02, 2022, 12:22:17 pm »
I will try a light oil on this one Pat. The wax works okay but is pretty thick.

bownarra

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Re: Takedown Sleeve Question
« Reply #10 on: September 03, 2022, 01:37:15 am »
As a sidenote parafin wax is excellent for giving the male section of a fishing rod joint a rub.... Stops the vacuum forming that can stick fishing rod sections together :)

Offline Stickhead

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Re: Takedown Sleeve Question
« Reply #11 on: September 03, 2022, 12:24:53 pm »
I just seal the ends with a thin layer of TB3.  Never felt I needed a gasket.

Offline Will B

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Re: Takedown Sleeve Question
« Reply #12 on: September 03, 2022, 08:57:04 pm »
Good advise Tom  (SH)