I must first apologise because I can't find the thread and don't
recall who posted the tip. Anyhow, thanks are due. I messed up a
couple of bits of wood [didn't tighten the fence hard enough when
routing and thought I'd been pushing too hard], and all I had left was
a badly planed end of the original board. I'd taken it since they only
charged for a good section, and the bad end still had some good
material. But I needed most of the length.
So.... I took the hint and hot-glued to a piece of 1" MDF, and ran it
through the 12" planer. A few mild passes to not give too much stress
to the setup, and it worked like a charm. Removing the board, one
side planed, was dead simple, and it didn't damage the MDF, which can
be used over and over for that purpose. Turned it over, lowered the
planer blades, and did the second side easily. The board was slightly
bowed, and one side had a deeper cut in the original planing, and in
fact was a bit wavy. So I supported the center with a shim and a spot
or two of glue there also, making it quite solidly attached to the
MDF, no likely give in the center.
Thanks!! Two brand new pieces that now fit perfectly from a board of
what might have been firewood.