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In recent years, the table top has been getting wobbly, so I decided to tighten it as a Thanksgiving weekend project. This picture shows the gluing operation on one of the leg assemblies. I don't have a large clamp, so I put a piece of petrified wood on top, which weighs more than 100 pounds (45+ kg).
Each of the two leg assemblies is attached to an 8"x8"x1.25" (20x20x3.2 cm) oak block, which was glued and screwed to a larger oak block which is screwed to the table top. Removing a leg assembly for shipping entails unscrewing the larger oak block. But getting the two blocks separated required breaking the glue bond. We did that, and pulled off the smaller oak blocks from the leg post, because the glue was already broken there.
I put carpenter's wood glue on the top of the post and on the scar on the block, and used the method you see here to clamp them while the glue dried. Then I re-glued the whole assembly back to the larger block, and it is clamped by the screws. I suppose if I'd used hot bone glue it might have been better, because if the top works loose again it could be repaired again. I'm betting it lasts the rest of our lives. We just now set the table back upright and it feels much more stable than before.
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