Mount it where it belongs, holding it tightly to the stretchers. Remember
to put as many coats of finish below as above so you don't get unequal
moisture adjustment, which is what you'll get ( or may have already ) if you
lay it on a flat surface and leave it through a bunch of damp days.
If you have let it sit on a table for a day or so with only the top exposed
to the air then just flip it over for a day or so so that the other side can
absorb or lose the moisture the first side gained or lost.
If that is not the case I would first check your jointer to make certain that
the fence is set to 90*. If the fence is not at 90 then you will be starting
with a curved piece unless you flip every other board 180* end to end. ie the
first edge is 88 while the mating edge is 92 so you have a flat surface.
Now if that is not your problem, then we get into the contentious issue of
gluing up "wide" (more than 3 or 4") boards. Wood has a tendency to cure
toward the bark side as it dries / seasons. That is why many people will only
use narrow boards and alternate the grow rings on adjacent boards. If you have
used 8" boards that have not been completely seasoned then you problem will
likely just get worse unless you rip the boards into smaller pieces and flip
ever other piece. Hope this is of some help. JG
Chris Miller wrote:
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