Face jointing resulting in convex boards?
Hi all, using the Porter Cable 6†benchtop jointer pictured here, and for face jointing the first few boards it worked magnificently. However, now I’m running some slightly twisted poplar through it and the faces I’m running through are turning out convex. I’m barely using any downward pressure and am only registering on the outfeed table. As far as I can tell my tables are parallel. Any ideas as to why this might happen?