Put together all of the legs.
I noticed I made a really stupid mistake. Hard to fix now, too! The back end should slope up and the front end should slope down. I installed both the front and back sloping down. Now I’m off by 10 degrees in the back.
I’m going to try to solve it by recutting the back end on the miter saw. Now I’m even more glad I bought a 12” miter saw.
I’m worried about what the impact will be to the design? The sloping board (under the arm) looks like there’s enough extra that it should work out OK. We’ll see How big a mistake I just made. For sure, this is going to knock off the angle that the arm mounts.
Did the cuts. Here’s piece cut off.
-- Doug - When all you own is a hammer, everything looks like a nail.