I understand that the Spaceball 2003 is no longer supported by 3Dconnexion (c'mon..., it's only 30 years old!), but I'm hoping someone might still have a wiring diagram for the cable, or something that would help me get it going again. If you have one, and are crazy enough to beep each pin on each plug with a multimeter, we really should talk.

I'm surprised my googling has not found me the elusive cable wiring diagram yet. I am guessing that it follows the pin convention for a DB9 to 8pin mini-DIN RS232 cable of the time, but with a 9th pin for power, due to the circuit drawing a bit too much juice for the serial port (fixed in later incarnations of course.
I'll probably get the modern equivalent soon, but I would love to get this gorgeous piece of early '90s design back into action and doing doing more than simply looking cool. In theory, it would not be impossible to gut it and wire the sensors and buttons to a modern MCU board without putting any new holes in the case, but I'd rather not have to do that.

Anyway, all info gratefully accepted!