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Author Topic: Glass lines  (Read 741 times)

Online PrimitivePete

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Glass lines
« on: March 22, 2021, 08:28:04 PM »
Is it common for takedown bow limbs to develop lines in the glass near the bolt hole ?
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Offline Orion

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Re: Glass lines
« Reply #1 on: March 22, 2021, 08:35:27 PM »
Are you talking underside of the limb?  If so, I wouldn't say it's common, but not rare either.  It's caused by the wood and glass expanding and contracting differentially due to temp/moisture changes, which is exacerbated with particularly tight fits.  You can stop it by chamfering the holes in the limbs (relieving/countersinking the glass just a little) and seeping a little super glue into the cracks that have already developed. 
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Online kennym

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Re: Glass lines
« Reply #2 on: March 22, 2021, 08:36:56 PM »
Also, seal the bolt and pin holes well, if the wedge picks up moisture it swells and glass doesn't change with moisture...
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Online PrimitivePete

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Re: Glass lines
« Reply #3 on: March 22, 2021, 08:44:56 PM »
Yep on the underside of the limb, I don't feel any separation, thank you for the reply
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Offline Terry Green

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Re: Glass lines
« Reply #4 on: March 22, 2021, 08:51:16 PM »
Yes.
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