Author Topic: ??? Roy about clamping BBO  (Read 289 times)

Offline Canadabowyer

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??? Roy about clamping BBO
« on: April 14, 2013, 11:29:00 AM »
Roy, do you use anything between your slat and the c-clamps? Thanks, Bob
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Offline macbow

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Re: ??? Roy about clamping BBO
« Reply #1 on: April 14, 2013, 11:53:00 AM »
I don't know if Roy uses some thing on the slat side.
I'd suggest using something like a small piece of 1/4 inch plywood etc. otherwise you'll be putting considerable pressure in that one spot and could put a small compression area.
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Offline Pat B

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Re: ??? Roy about clamping BBO
« Reply #2 on: April 14, 2013, 12:07:00 PM »
I think Roy was using short pieces of boo as pads under his clamps in the pic he posted earlier. Thev would conform to the contour of the boos back. I think Eric posted pics of these kind of boo pads in a post a few years ago.
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Offline Eric Krewson

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Re: ??? Roy about clamping BBO
« Reply #3 on: April 14, 2013, 12:40:00 PM »

Offline Bowjunkie

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Re: ??? Roy about clamping BBO
« Reply #4 on: April 14, 2013, 04:40:00 PM »
I'd be afraid they wouldn't match perfectly and then crush or compress the bamboo in a spot or two.

I use strips of 1/8" rubber long enough that I need just two of them to cover the entire bow.

Perhaps the best of both worlds... the rubber between the bamboo pads and the back of the bow???

Offline LittleBen

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Re: ??? Roy about clamping BBO
« Reply #5 on: April 14, 2013, 07:10:00 PM »
I like the idea that the boo pad put pressure evenly from across the rounded back of the boo. I imagine that helps improve the glue line.

I would also be concerned about the edge of the boo pad damageing the boo backing. I imagine if Eric and Roy have not had problems then it's not an issue. I might glue a piece of inner tube to the bottom of each boo pad just for safety (or to make myself feel like i had more safety) ... would probably increase the friction of the boo pad to the backing too and reduce or eliminate any slippage.

Offline Crooked Stic

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Re: ??? Roy about clamping BBO
« Reply #6 on: April 15, 2013, 06:17:00 AM »
I don't know beans about backed bows. Would a air hose form not cure this problem seeing that it may lay around the curve of your boo?
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Online Roy from Pa

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Re: ??? Roy about clamping BBO
« Reply #7 on: April 15, 2013, 07:51:00 AM »
Yes Bob I place a thin 1/8th lam on the belly side to protect the belly from clamp indents. I haven't had a any problems with using the 2 inch pieces of boo on the back of the bow at glue ups, which I got the idea from Eric. I don't crank my clamps down very tight, I just snug them a bit after they make contact with the bow material. It doesn't take a whole lot of pressure to squeeze two narrow 1 1/2" flat surfaces together in my opinion and my glue joints have been very good.

Offline Eric Krewson

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Re: ??? Roy about clamping BBO
« Reply #8 on: April 15, 2013, 08:38:00 AM »
I have made about 50 bamboo backed osage bows with bamboo scrap clamp pads, no problems of any kind so far. Like Roy, I don't tighten my C clamps very tight, just enough to squeeze out some glue buggers.

Offline Canadabowyer

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Re: ??? Roy about clamping BBO
« Reply #9 on: April 15, 2013, 10:01:00 AM »
Thanks guys.I scored about 30 clamps for $30 at the Habitat for Humanity store so I am ready to glue one up.I am going to use tapered lams of osage like Wingnut does in TBB 4.I'll let you know how it works. Bob
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Online Roy from Pa

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Re: ??? Roy about clamping BBO
« Reply #10 on: April 15, 2013, 10:11:00 AM »
Take lots of pictures, Bob.. Get er done.. Just watch your fingers on that edge sander. I already sanded one knuckle:)

Online Roy from Pa

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Re: ??? Roy about clamping BBO
« Reply #11 on: April 22, 2013, 03:18:00 PM »
Bob ya have a PM.

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