This case was designed measuring and testing with the phone iPhone 7 Plus, the only difference in shape with the iPhone 7 is the hole for the camera, so this must works for both, if not, please notify me.
Some of the models are designed for rigid materials and others for flexible ones. The models materials are not interchangeable, so pay attention to the file names.
Flex: made for elastic filaments like TPU. Not tested.
Rigid: made for rigid (non-elastic) filaments like PLA, ABS, HIPS, etc. The entire model is a little bigger and the holes for the buttons are opened on the front side. Tested only on PLA.
Aired: It is widely opened in the back so that the phone can dissipate the heat easily.
Printer: FLSUN Cube
Infill: Doesn’t matter
If you set the wall width to one filament line (0.4~0.6mm) and the infill overlap to higher amount (70~100%) you could have a rough wall surface.