If you are bored, please look over this link for programming
the BBAI-64 and Relay Cape in C/C++ and Python3.
Relay CapeHere is another resource of source for another Cape for the
beagleboard.org BBAI-64. This one is called the Servo Cape.
Servo CapeThe add-on is 50cm or roughly 19.75" XY along with a heightened gantry for the Z_axis
The machine works at 450mm (X) * 152mm (Y) * 400mm (Z) with Klipper, a Recore A7, and Mainsail.