I made a tutorial on how to design a iPhone case in SolidWorks a few years ago so I wanted to make an update on it. I'll admit how terrible my old tutorial was so I have put together a new one that is more detailed and higher quality. The design I demonstrate is very simple and straight forward. It is the basics of iPhone case designs and it is for you to take it and run with it. Who knows? You might create an eye catching design that everyone wants to get their hands on. Websites like Shapeways.com allow users to upload their 3D designs and put them up for sale. It is all up to the imagination.
I have included both a SolidWorks .part file of the completed iPhone case and a .stl file which is the 3D printer format.