This joint was inspired by the realization that joinery used in frame and panel doors always results in a visual discontinuation of the vertical component, whereas the horizontal component usually carries through to an adjacent component.
Using mortise and tenon, bridle, or cope and stick joinery resulted in one member (usually the stile – the vertical member) cutting off the rail – the horizontal member.
Mitre joints didn’t harshly interrupt the visual flow, but made the eye turn the corner and follow the door frame.
I wondered if it was possible to make a joint so that both components visually continued through the joint. I started sketching.
This was the first joint that I made, based on that idea. I called it a crossing joint.
There was a lot of glue surface, but much of it was long grain to end grain which does not have as much strength when glued together as do two long grain surfaces.