Primitive Archer
Main Discussion Area => Bows => Topic started by: Will B on August 31, 2022, 04:26:57 pm
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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
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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.
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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.
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Doesn't matter. In fact it would be better without one :)
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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)
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Thanks for all the advice. Much appreciated (-S
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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.
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I use paraffin wax between the sleeves.
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I don't think I'd use anything thick like paraffin wax. Maybe a light machine oil would be better.
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I will try a light oil on this one Pat. The wax works okay but is pretty thick.
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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 :)
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I just seal the ends with a thin layer of TB3. Never felt I needed a gasket.
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Good advise Tom (SH)