Primitive Archer
Main Discussion Area => Bows => Topic started by: Newindian on August 16, 2016, 02:01:13 pm
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This is this bows third posting, (first was titled death pics about two years ago). At the time I was to anxious to try anything drastic and ended up just doing a very serious wrap on it. But since then it's just sat on a shelf and occasionally I'd string it and look at the hinge it had on the crack. Now I've decided I have nothing to lose and am going to try a method del suggested: cut out a concave area and glue in a price of wood. My question is how long do y'all thing I should run this, it still needs to go alittle deeper, since it's backed up right against the handle I'm afraid that it'll try real herd to push out the filler piece, what do y'all think about running it all the way to the other side and making it symmetrical?
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How thick do you think the patch will be, at it's thickest and how long is the cutout? I'm thinking that a scarf joint is supposed to be 7 to 1 or thereabouts. I've fixed hinges on a few bows by epoxying a splint on the belly with good success but they were only 1/8" or so thick.
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I always try to completely rasp out any defect, so I'd go the extra 1/16"
It looks like a good long clean patch to me, but take plenty of time to get a good fit.
There is a slight advantage in rasping out a bit more as it will make it slightly flexible at the thin point and thus able to match into the patch better when clamped up.
Del
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How does this look? And del, there are actually several cracks that run all around the handle. Getting out all of the crack would cut the bow in half, so it's more of deciding where to stop. Because of this I am putting a wrap through the length of the cracks, and because this is mostly covered by the handle I can wrap the joint up to anout the left side of the right side clamp.
Should I use epoxy or tb3?
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Id use epoxy, I think TB3 would slip. If you pull this off and it lasts beyond the pics, it will be the biggest repair of this nature I've seen done. Generally speaking plug fixes are about a 1/10 that size!
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Epoxy
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Looks pretty good, I always use lots of rubber strapping round the ends of the patch to try and get them well stuck down.
Del
BTW I use Resintite, a fine white powder which is mixed with water
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Did not work, I let it harden for two days then rasped the patch so that it matched the other side, bent the bow about an inch and it failed, the inch and a half against the handle was a glue to wood failure the rest of it ripped out of the patch.
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I was curious about that. That's a whale of a plug fix. Live and learn!
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What kind of glue did you use? Like PD said it was an awfully big patch.
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T-88