Reply by patcollins

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Posted on Are Most Benchtops Woefully Underclamped during Glueup? (probably not)

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1685 posts in 2860 days

#1 posted 12-06-2012 11:28 PM

Are workbench glueups underclamped? Do you know any that failed?

I am a mechanical engineer and while I haven’t taken any data myself about glue failure I know one thing, every glueup that I have seen fail it was the wood failing and not the glue. No clamping pressure is going to increase the strength of the wood.

Nicolas your father in laws table most likely had a glue line failure because the wood warped, and unless you left the clamps on forever no amount of clamping pressure would keep the wood from warping because the funny thing about clamps is when you take them off the pressure holding the boards goes away and perfectly flat/straight boards don’t pull apart on their own.

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