There are many phones and tablets as well as many connectors and favorite angles, so I think it is good if everybody can make a stand which fit his/her phone with or without case.
Also I tried to make it easy to print but not so boring.
It is made to be print without supports. I printed with 0.25 layer on 0.4 nozzle but I think it will work with most reasonable settings.
P.S. There is an example of a recursive method for OpenSCAD in sources :)