I'm not sure what plywood you are using but if I tried to run mine through a planer, I would be left with junk. Also, I believe the interior layers would splinter and rip out. My maple plywood has a filler between the maple layer and back that is almost like cloth. When cutting on the scroll saw it leaves fibers, not like fuzzies but more like lint. It doesn't burn easily either and I have to trim them off with a razor blade.