that's a very cool corner brace. From a structural integrity aspect, is that going to be much much better than the metal brackets or do you just like doing projects out of all wood?
I think I'll attach the aprons to the legs with M&T 3/4 sided (open from the top so a giant dado cut) since I have dado blades and no easy tools for a full M&T.
the structural support will be a 2x4 trimmed for sharp edges (from down from a 2x10 S4S) which will slide into the dados. Then a 1x6 board will be the exterior of this, screwed together from the 2x4 outward to the 1x6 to hide screws.
Then a corner bracket of some sort metal or wood at all 4. Then the top mounted to the skirt with those sliding metal pieces in a thin dado along the skirt inside.
Since I need to assemble this inside the dining room, will I be able to just do two ends (say the long ends) glued in the mortises, then not glue the short ends? I'm curious about disassembly down the road.
And yes, I did look into using the mortised breadboard attachment. However, not sure how I'll do this without a machine for that.