MakerBot Print is our newest print-prepration software, which supports native CAD files and STL assemblies,
allows you to interact with all your printers via the Cloud, and many other exciting new features.
Disregard the disappointing comment...
This is indeed a very cool design and it is a tight fit one. A -0.2 mm horizontal expansion is recommended on questions marks and screws in order to avoid any rework for fitment. Scale to whatever size you want, especially if you want to save time on the print.
Thanks for sharing!