Interesting project. It does look pretty horrible - but hey, if it works, then it works. Congrats! Somehow I feel there might be a better way by cannibalizing a usb hub and just plugging the teensy into that instead of hacking into the stock board. I'm not sure about that though.
Would you mind making the gist? I actually haven't updated much since I initially flashed the board, so I am still on an older version of the TMK code. So it would be nice to get updated again and update the OP. I could probably figure it out, but no sense in reinventing the wheel if it has already been done before.
I agree. I thought about alternate controllers that could function as a usb hub, but that's outside my past experience and thought I'd just take the "easy" way out and strip down a usb hub.
FWIW, I originally machined an aluminum plate that fit into the HHKB PCB recess, and then mounted different usb plugs to it. Rock solid and perfectly aligned. Then, at around 3am Saturday one of my mini USB pins failed. I was using an otherwise nice, rugged amphenol connector
which I screw mounted to the HHKB case... looks good and was secure.
Then the smaller usb2.0 four port hub
I was using gave out after surviving transplant.
Anyhow, after the mini usb failed, I was going to just hardwire a cable in but then figured I was either going to make this work or I was going to keep trying until it worked, so I just dremeled it (with vacuum suction and a half face respirator, mind). I don't like cutting off options but in this case was very happy with the results.
So I have a replacement hub and the new amphenol mini usb connector coming in and once they arrive I'm going to clean up the hack job. Will also replace the ribbon cable with one that is thinner.
I do agree that there is probably an even nicer way to mount all these, maybe a circuit board (generic or custom).