From:
https://www.reddit.com/r/CNC/comments/7miqlp/opendesk_cnc_files/
parametric version of:
http://digitallyfabbed.com/#/olivia-desk/
from the Opendesk project: https://www.opendesk.cc
(listed on the wiki at: Shapeoko CNC Router, Rigid, Accurate, Reliable, and Affordable )