The first case that I created obstructed access to the two Stemma QT ports.  I’ve modified the case to accommodate access to these ports.  Now the case requires some support, but seems to work.  Note: My slicer also added support into the small clip "notch" holes, but it was easily broken out with a screwdriver.  

The updated CAD files (Fusion3D, STEP and STL) are now located in the files section and are labeled "Stemma port cutout".