This one has me baffled. Basically, all the boards I'm running through my Felder A941 jointer are not getting straight, they are developing crooks with the wider part of the crook in the middle of the board on the edge that is getting jointed.
Never had this happen before. I'm not new to jointing, so I'm thinking my technique has been ok, but now seriously reconsidering that.
Jointed wood developing crook.jpg
Crook on Board Drawing.jpg
The boards I ran through (sapele) all had relatively straight edges, but rough, not finished.
Is there something out of whack with my jointer, or am I somehow pushing the boards through wrong?
I use two Magswitch dual roller guides set to the thickness of the board (one before, and one after the knives) to keep the board pushed against the fence.
I have absolutely no idea what is causing this. Any ideas?