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    Backing my prod

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    Daniel Levesque
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    Backing my prod

    Post by Daniel Levesque on Mon Jan 30, 2017 7:02 am

    Hello everyone !

    I'm in the process of making my 3rd attempt for a wood prod (hickory). I'll be over with the pre-tillering soon enough, I'll steam bend it with about 3 to 4 inches brace then, I'll apply the sinew/hide glue.

    My prod is 37,5 inches ntn, 2 inches x 3/4 at the center and 1 inches x 3/8 at tip. I bought some hide glue and 6 back sinew from 3 rivers archery. Dp you think it's gonna be enough, I have my doubts aboput that. I'd like the sinew to be about 1/4 at the center and 1/8 or so at the end.  How much do you think will be needed ?

    Thanks in advance !
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    OrienM
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    Re: Backing my prod

    Post by OrienM on Mon Jan 30, 2017 7:16 am

    I'm thinking you're going to need some more sinew...I'm not sure how back sinew compares to the leg sinew I use, but my last prod used 12 elk leg sinews. Sinew shrink a lot as it dries...the freshly-applied backing needs to be put on about 1/2" thick, in order to shrink down to 1/4" as it cures.

    Another advice, don't try to pre-tiller too much, just a general sense of bending evenly is fine. Once the sinew back is on, the risk of the prod exploding during tillering goes way down.
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    Daniel Levesque
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    I'm new to crossbows


    Fresh Blood Doesn't meanI'm new to crossbows

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    Re: Backing my prod

    Post by Daniel Levesque on Mon Jan 30, 2017 8:21 am

    Thanks a lot for the advice OrienM, I'll definitely buy more sinew (I have 6, I'll buy 8 more). Back sinew is bigger than leg sinew though 12 inches or so compare to 6 inches I think ? Anyway, having some extra won't hurt.

    Oh and by the way, for now, my prod is only tapperd 2 inches wide at the centre to 1 inche wide at tips. I didn't tiller it 3/4 thick center and 3/8 thick to the tips yet, it's only what I intend to do.

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