One solution to expansion

[Tom Bender]

This worked ok, 25 years with no issues. Maple I think and the legs are Elm.
Expansion.jpg

Well I haven't figured out how to post it upright but that's not as important I guess.

[Jamie Buxton]

Maybe a little more explanation would be useful. What are we looking at -- a chair, a stool, what? And what is the expansion solution? And why does it work?

[Tom Bender]

Lee, thanks for turning my stool upright

Jamie
The X brace is one piece of Maple that should expand with humidity changes. If it were made with a full width tennon it would damage the joint, and/or split the brace. This design allows it to flex to accommodate the expansion.

[Bruce King]

Dual wishbone flex spreader. Very cool.

[David Sochar]

Why anyone should know that to be a dynamic hybrid stress relief matrix for de cure of de wood movement. A reduculator for short.

And people think it is just furniture!