Join Date: Jul 2012
Location: upwind of Three Mile Island
Anyone else hollow-joint?
I was taught to raise the far table of the jointer a hair, which would produce a hollow in the edge, which, when doubled with its mating board done the same way, allows a crack of light through in the middle when held up together.
The reason for this is to build-in some pressure at the ends, so that the glue-joints won't fail and open.
I do this also by hand by clamping the mating-boards' faces together and planing both at once, so any square-error will cancel.