Vertical plotter from HackSpace mag issue 55. See hsmag.cc for details.
The motor mounts and pulleys are copyright Ben Everard and shared under CC-BY-SA. The Gondala is copyright thingiverse user Rincey12 and shared under CC-BY-SA (full details at https://www.thingiverse.com/thing:472573).
The author hasn't provided the model origin yet.