This is a case for a Raspberry Pi 3B / 3B+ with a, integrated camera mount for a Raspberry Camera Module v2, and a camera shutter to protect the lens when not in use. Plenty of holes are provided for good airflow.
The unit is made of 3 parts only, and it is entirely snap-in. The camera module snaps in the top of the case, and the stock flat cable neatly folds under the camera. The slider snaps in the top slots. No screws or glue are required at any stage.
In addition to the STL files, I am providing the STEP files to assist remixing. These can be imported by most 3D CAD packages. Please note that most design details are snapped to a 0.5 mm grid to assist placement, and this may be used to simplify remixing.
Check dimensional accuracy of adhesion layer for smooth slider movement
The case should snap together without any need for post-processing.
If the adhesion layer to the printer bed is "squished" and is slightly over-extruded, it may get in the way of the slider movement. If this is the case, clean up the inside of the slider slots on the case top.