I wanted to work with FreeCAD a long time. Yesterday I finally had the time and made the display cover for the adaptor-housing. It already has some additions, that I plan to make (touch controls for the menu) and therefore needs a bigger cut-out in the housing.
I will use the 3d-printer at the university to print a prototype and to see if everything works out as planned, because my experience with 3d-printing is very limited to say the least. The FreeCAD project files are added to the project page.