Reply by Loren

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Posted on "Factory" edge on plywood: True and square? Or not?

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10477 posts in 4099 days

#1 posted 03-30-2018 07:07 PM

I cut and banded the panels for a murphy bed
last week. Two or three of them went a little
banana-shaped on the edges after the first cuts
using a Mafell PPS, which cuts quite straight.
I let them move overnight and then recut the
curved edges before ripping to final width.

I use a Hess Mobil 2500 edgebanding press that
requires that edges be quite straight. The longer
the edge, the straighter it needs to be to make
a glueline within the tolerances I want.

Since I’ve observed this phenomena and have to
pay attention to it because of the limitations of
my bander, I can say for certain that it’s a thing
that occurs with plywood.

I don’t really watch woodworking TV shows so I
can’t comment on whether or not these guys are
familiar with required tolerances for using
edgebanders like mine.

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