The motor behind it all is a geared stepper motor, and there are a set of printed parts to complete the model.

The FTDI DLP-USB245M is a USB-to FIFO interface module that simplifies the control of multiple steppers by a PC.

Programming very complicated stepper movements then becomes just a matter of generating the right “audio” file and playing it out. [lhartmann] demonstrated this earlier with an Orange Pi.