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Author Topic: Laminate bow build feedback request
Clevelandbowyer88
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So I'm in the middle of buildings a quadlam bow, backing parallel hickory 1/8", then core parellel action bamboo1/16", then ipe core tapered from 1/4" in center to 1/8" at tips and ipe belly parallel 1/8". It's a beefy bow, which was intended. This issue is I got alittle over zealous with the belt sander shaping the tips and had to cut 2 1/2" off each limb bringing the total bow down to 59 1/2" tip to tip. This is a stiff handle design with a 18" riser, which doesn't leave much room for limb movement. This is the shortest bow I've ever built and just floor tillering make me pucker alittle bit cause I feel like it's gunna shatter if I try and throw a tiller string on it. I should mention that this is an all wood build, although at this point I'm thinking a glass backing might be needed at this point. Any suggestions welcome.
Posts: 10 | From: Ohio | Registered: Jul 2017  |  IP: Logged | Report this post to a Moderator
Clevelandbowyer88
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I'd add some pictures but I can't figure it out.
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LittleBen
Contributor 2013
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Glass backing a wood bow is almost always a bad idea. If you tiller the bow properly, the Ipe will typically fail before the hickory.

My opinion is that your riser is too long, and/or your limbs are too short, and/or your stack is too thick.

I don't know the width of the bow, but I have one bamboo backed Ipe of approximately that length, and stack, but with a shorter riser. At about 1" wide the bow draws something like 70# @ 26"

I think you have a very stout bow there if it survives.

Personally I would tiller it, but expect to need to remove most if not all of that belly lam to get to a reasonably draw weight/length.

Posts: 2961 | From: Albany, NY | Registered: Nov 2009  |  IP: Logged | Report this post to a Moderator
Clevelandbowyer88
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Thanks little Ben, I'd have to agree with you, my riser is def too long for this bow. If I didn't have to cut the tips it might've been just enough. I was thinking about cutting off the thick part of the riser and trying to turn it into a bend in the handle but I doubt that would work since I ran the belly lam up both sides of the risers fades. Oh and the bows width is 1".
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mwosborn
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What draw weight and length were you wanting when you started? Hopefully you wanted a short draw heavy bow! [Wink]

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Enjoy the hunt! - Mitch

Posts: 1491 | From: Albion, Nebraska | Registered: Sep 2009  |  IP: Logged | Report this post to a Moderator
Clevelandbowyer88
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I was originally aiming for 65lbs at 28" 66" tip to tip. I'm thinking I'm going to have to go 45lbs at 25" and hope that's not too much.
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mwosborn
Contributor 2017
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As Ben indicated, I would go ahead and tiller it out. If it was me, I would just grind off the 1/8 ipe belly and then start tillering.

--------------------
Enjoy the hunt! - Mitch

Posts: 1491 | From: Albion, Nebraska | Registered: Sep 2009  |  IP: Logged | Report this post to a Moderator
   

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