I made a knee dog clutch adaptor.
Unfortunately, I screwed up the first one, because I turned the shaft doameter down too much (all too familiar story).
Had to make another one. It was a milling and drilling operation, then more drilling on the lathe, then making a slot for the metric shaft key.
The second one fits the gear motor just fine.
Pictures are here.
There is still a lot of work. First of all, it is possible that I made some other mistake and need to redo something. Second, I need to put a servo drive in, connect the encoders, and more importantly, do limit and home switches correctly.
i