Originally Posted by
homey
Oops - didn’t mean to hit “Thanks for the pictures”!
Richard - any chance of a couple of pics so we can see what’s happening? It sounds very peculiar.
Couple of thoughts. Was the timber really dry when you used it or was it relatively newly cut? Second, when you originally cut and prepared the pieces did you leave them for a few days before using them? Sometimes I find resawing or planing can release stresses in the timber causing it to distort.
I’d be surprised if the problem were temperature alone - plenty of boxmaking around the world in places with greater temperature variations than yours. Likewise humidity. My (very uninformed) guess is released stress in the timber, but I look forward to hearing more knowledgeable views from the experts here.
Brian