I’m making a table out of butternut. Some components have to be glued up edge to edge before further work. In order to get the edges to match for a glue joint I run the edges over my jointer. A set of knives on the rotating cutter head cut the wood to create a smooth edge.
I was having some trouble getting the edges to match nicely and I wanted to get a pair glued up right away so I was tempted to forge ahead. Instead I stopped everything, unplugged the jointer and set about re-adjusting the knives.
The work piece is pushed from this end of the jointer with it’s face tight against the vertical fence. The fence should hold the piece so that the knives cut square to the face. That is if the knives are adjusted to be parallel to the in feed and out feed tables, the two surfaces on either side of the cutter head.
You can see the in feed table to the right in the image above, I’ve dropped it some to gain access to the screws that hold the cutter knives in the cutter head. The out feed table is on the left side of the image.
The adjustments are made as a fixture magnetically holds the knives just right.
Once the jointer was adjusted correctly I was able to cut the joints easily and they went together with a sweet, satisfying whisper of a “thwump” as the cushion of air escaped perfectly evenly.
Such a satisfying sound. The joints will be sound, the effort was worth it. The pieces go on to my glue up rack.