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 Post subject: Feeling the pressure?
PostPosted: Sun May 07, 2017 2:50 pm 
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Joined: Sun Feb 21, 1999 1:01 am
Posts: 2424
Location: Rochester MN USA
A board joint is just like you. Just enough pressure to get the job done is just right. Too much pressure can cause problems soooo when you are doing a glue up, remember that. You don't have to make the veins in your neck pop out when you tighten the clamps. A nice even thin film of glue and evenly clamped tight enough to hold the joint together and in position is all that is needed. Here is a really good discussion about clamping pressure.

http://www.newwoodworker.com/basic/clmpress.html


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PostPosted: Mon May 08, 2017 10:41 am 
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Joined: Sat Jan 14, 2006 10:44 am
Posts: 3843
Location: Skagit Co WA
I know I tend to use too much clamp pressure sometimes. Once I tried an experiment by just laying two scrap pieces together with Titebond II with no more than enough hand pressure to get a bt of squeeze out. Left the pieces to cure overnight and sure enough, next day I split the boards without any failure at the glue joint. The key, I believe, is accurate machining to achieve a good even and tight fit between the pieces or the joint.


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