Staubli robot arm, programmed to stipple with vcode -> gcode -> processing (or alternatively via SVG Inkscape to gcode converter).
Staubli arm donated to MITERS (MIT Electronics Research Society, a student-run hackerspace and machine shop on campus). Documentation acquired from manufacturer and reverse-engineering supplied by fellow MITERS people + London Hackerspace people.

DOCUMENTATION:
GITHUB:
https://github.com/MITERS/gdmux
See e.g. GCODE file send command:
https://github.com/miters/gdmux/blob/master/MITERS/sendcmd.py
https://github.com/MITERS/gdmux
Staubli manuals and MITERS specific documentation
Square
Running gcode
https://www.youtube.com/watch?v=c9G04pF2bmg
photos
https://photos.google.com/album/AF1QipMaUkI5_Ts6uI_podBIgbtm9nI42E0korjYPjyy
edit 18 June 2020: Link now fixed to
https://photos.app.goo.gl/QX1h4bjoDv3ngoCU9


