Hi Frank,
When we first received the laser cutter at Sig, Gretz and I looked at different ways to assemble wings and fuselage with this and various other methods. While they are kind of cool because the laser can make many different shapes to easy construction process. The main thing that keeps coming back to the both of us was the human and material factor. We are not cutting metal, it’s balsa and plywood! Sorting the wood can help this, but nothing down to zero. Then take into count that many new builders can't get their left or right thing down no matter how good the instructions are.
What we were looking at was attaching the stab & rudder in an ARF fuselage with a cut notch that was basically shaped like that. It seems really simple at first but let’s say we are using 1/4” balsa that's not a truce .250, thinner its loose, and thicker is Way to tight. I'm sure that there are some ways this can be used like that, but I'm not sure of a wing and spar assembly.
Later,
Mikey