After noodling over the joinery between the horizontal support arm and the vertical riser yesterday I’d realized I needed to make the supports for the saw first and work backwards to that joint so that I ended up with the saw in the right position.
I printed our my measurements and laid out all of the critical bits on my wood for the horizontal adjuster. And realized I had the orientation inverted. Opps. Erase, repeat. The horizontal adjuster goes at the far end of the saw, the vertical at the near.
I was thinking I would break out the router to make the adjuster slot and recess for the steel plate, but that just seemed like too much trouble. Setting up stops or making a jig. Instead I drilled some ruled to remove the waste for the slip and chiseled it out (only half way through, because the slot for the sliding tenon on the other side will complete it).
Then I knifed in the outline for the steel plate, drilled out most of the waste with a Forstner bit, chopped the outline and finished it with my router plane. This was fun.
The rest was just drilling/tapping the pivot adjuster hole and sawing out the shape. I tuned it up a little with a rasp. It’s not an elegant shape, but it will be functional. I’ll probably round over the edges and smooth it out a bit more, but first I need to make the vertical adjuster.