Reply by renners

Come to think of it, I had an issue planing boards straight just a week ago – my euro style planer thicknesser was planing a bow after a chip had settled on the mount under the outfeed table. When the outfeed table was locked back down the chip was raising the end of the table so it wasn’t co-planar, causing a bow. Just goes to show that even the slightest misalignemt can cause problems.

-- Never trust a man in winklepickers