iPhone4 Microscope Holder

I would like to introduce an adapter for iPhone4 and my old Meopta Microscope (Made in Czechoslowakia). This is my first OpenSCAD design, so I apologize if there are mistakes in the code. This thing has two parts - iPhone holder and Ocular adapter. Holder dimensions are based on Case design guidelines from Apple https://developer.apple.com/resources/cases/Case-Design-Guidelines.pdf .
I intended to make an iPhone holder wit universal interface. It is possible to make and attach various adapters