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Author Topic: How to reduce spring back from the mold?  (Read 557 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!
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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.
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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:
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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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