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Reply by jmos

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Posted on Glue up pressure and number of clamps?????

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jmos

913 posts in 2757 days


#1 posted 01-19-2018 01:44 AM

I think the more relevant question is how strong does the joint need to be? I’ve also seen articles (FWW has one from 2007) basically saying use a s-ton of clamps (and that is impossible to over-clamp a joint with woodworking clamps, they’re not strong enough.) But I also see articles referring to a rub joint, where you don’t clamp at all.

I have no doubt on similarly prepared boards that the rub joint will fail before the one that is “properly” clamped, but does it matter? Do you need to maximum possible joint strength for a cutting board?

Personally, I tend to use fewer clamps, especially on panels. In the OP’s example, I would use two, and those wouldn’t be tight enough to bow the board. If my boards are well jointed, the glue line is still invisible, and the joint is plenty strong.

-- John


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