iPhone Screw Clearance Case (with template for Android)
by EricYoung, published
A little something for all the engineers (or anyone else :) out there, this is an iPhone 4s (now also a 4 GSM version) case with free fit clearance holes for common metric and imperial screw sizes.
Print it out and stick it on your dog. Or iPhone. There are now 3 versions - iPhone 4s, iPhone 4GSM, and a flat template that's intended for creating different versions (i.e. Android smartphone cases) of the case easily.
The markings for the hole sizes might not print very well and I don't have a printer to test them. If someone prints this and the markings don't show up then I can change the font size on the model.
The hole sizes are Free Fit clearance holes and I didn't try to take into account the tolerances involved with 3D printing, so they might need to be drilled out if you want the sizes to be exact. The smaller holes should be drilled for sure, unless your printer is dead on.
The Flat Template file is a 1.5mm thick flat piece with the holes and markings. If someone wants to design an Android case then this Flat Template can be combined into a new model pretty easily so that all the holes/markings don't need to be re-modeled.