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» Trad Gang.com » Main Forums » The Bowyer's Bench » 54" Hybrid Build-Along (Page 4)

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Author Topic: 54" Hybrid Build-Along
JGR1269
Trad Bowhunter
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Next I clamp the riser into position making sure my center marks are lined up and it is up against the side stops on the back side of the form.
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I put another layer of plastic wrap over the lams and slide the aluminum pressure strips under the metal strip on top of the lams and against the stops.
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Now I can start running the zip ties through the holes in the form and over the pressure strip. I pull them down as tight as possible working from the tips towards the riser.
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I check the riser again to make sure it's still centered and against the side stops on the back side of the form.  -
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Posts: 100 | From: Bolivar, New York | Registered: Jul 2013  |  IP: Logged | Report this post to a Moderator
JGR1269
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I remove the clamp and allow the zip ties to hold everything in position.
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I lay the air hose on top of the pressure strips and attach the upper half of the form to the lower part.
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I inflate the hose to roughly 20 psi, check that everything is aligned and wait a few minutes before inflating it to 70 psi.
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I check that everything is good and place the form in the oven for four hours.
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Tomorrow after work I'll pull it out of the form and see if I did everything right.

Posts: 100 | From: Bolivar, New York | Registered: Jul 2013  |  IP: Logged | Report this post to a Moderator
chall
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[clapper]

--------------------
Eric Hall, Chris Hall , Cyndy Hall

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Sam Harper
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Very cool build along!

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There are strange things done in the midnight sun by the men who moil for gold.

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stack
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Very nice, at what point did you pull the zip ties out? after you got to 70 psi? I really like this idea tape is a pain.
Posts: 272 | From: Linden Michigan | Registered: Jul 2011  |  IP: Logged | Report this post to a Moderator
JGR1269
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I don't pull them out. There's no need to because they are on top of the pressure strip.
Posts: 100 | From: Bolivar, New York | Registered: Jul 2013  |  IP: Logged | Report this post to a Moderator
JGR1269
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My pressure strip is .080 thick aluminum so there is no issue of them putting marks in the limbs from the pressure on them.
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chackworth3
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Still looking great!
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Mad Max
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Can't wait to see what it's going to look like

[Not Worthy]

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"nothing ventured ,nothing gained"

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bigbob2
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Using lighter gauge pressure strips I had the ties leave marks in the glass even though I cut the ties out once I get the air pressure up to about 20 psi. I might have to go with heavier pressure strips like you have done.
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bigbob2
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terrific build along too by the way!
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kennym
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Lookin good Jon!!

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Stay sharp, Kenny.

https://www.kennysarchery.com/

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JGR1269
Trad Bowhunter
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Fresh out of the form.

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It looks good and straight with no twist.

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I measure 28" each way from center and mark the overall length. I'll reduce this slightly when I do the tips.

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I measure 1 5/8" from the back glass to the throat of the grip.

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I use my old recurve grip template to mark the curved shelf.

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Now it's off to the drill press. I clamp the riser in the vise and make sure it's level both ways.

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Using a brad point bit I drill a 3/8" hole all the way through the belly glass and this will be where my shelf meets the sight window as well as the high point of the shelf.

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Next, with a Forstner bit, I'll drill a 1 5/8" hole through for the throat of the grip.

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JGR1269
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Now I can make the cuts for the shelf, sight window and grip profile.

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JGR1269
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Tomorrow I'll get the limbs cut down to rough width, string it up and check tiller. I'm shooting for 48-51 pounds at 27" with an even tiller for my three fingers under release.
Posts: 100 | From: Bolivar, New York | Registered: Jul 2013  |  IP: Logged | Report this post to a Moderator
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