Author Topic: How to reduce spring back from the mold?  (Read 556 times)

Offline Zradix

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How to reduce spring back from the mold?
« on: April 01, 2011, 08:44:00 AM »
Hey everyone.

If you wanted to build a lam glass bow with a lot of r/d, how do you keep spring back to a minimum?

Does it help to use more core lams that are thinner rather than fewer thicker ones perhaps?

Thank you!
If some animals are good at hunting and others are suitable for hunting, then the Gods must clearly smile on hunting.~Aristotle

..there's more fun in hunting with the handicap of the bow than there is in hunting with the sureness of the gun.~ F.Bear

Offline T Folts

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Re: How to reduce spring back from the mold?
« Reply #1 on: April 01, 2011, 10:13:00 AM »
Yes I believe that is what I have read in the past. I use three cores with glass and dont get hardly any. Some bowyers will use a minumum of six total in a stack including glass.
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Offline Bradford

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Re: How to reduce spring back from the mold?
« Reply #2 on: April 01, 2011, 10:21:00 AM »
Yep... when you use more lams the 5 lams will slide slightly against each other and create a stronger bond holding the shape.

With only a few lams you don't get as much sliding and the thicker wood wants to go back to it's original form.
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Offline GREG IN MALAD

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Re: How to reduce spring back from the mold?
« Reply #3 on: April 01, 2011, 01:25:00 PM »
Thinner lams help and so does letting it cool down before opening the form.
I didnt miss, thats right where I was aiming

Offline Zradix

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Re: How to reduce spring back from the mold?
« Reply #4 on: April 01, 2011, 02:17:00 PM »
Thanks friends!
   :thumbsup:
If some animals are good at hunting and others are suitable for hunting, then the Gods must clearly smile on hunting.~Aristotle

..there's more fun in hunting with the handicap of the bow than there is in hunting with the sureness of the gun.~ F.Bear

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