I might have come up with a new connection I’ve never seen before. Sorry about the pictures. It’s hard to get a good angle of what’s going on. Basically it’s a way to put two plates facing opposite directions together in a way that they don’t slide or twist at all, but also have absolutely no clutch. They even key together automatically, so if they don’t get placed in exactly the right way, it will correct itself. You can basically drop one onto the other one and it will automatically find...