customizable hinged phone tablet stand

I wanted to modify the cut angle the phone sits in so it would stay open better, but there was no customizable cad file, so I redrew this from scratch in OpenSCAD.

This part isn't perfect, extreme values may cause parts to not meet properly. (I might fix this eventually, especially if I get feedback.)

And since I was messing with this anyway and trying different angle values, I went ahead and added an option to have multiple hinge links, which works better for larger tablets but still lets it fold.

The original used a 15 degree lean angle, and this one defaults to that as well, but a 10 degree angle seems to work better.

I've included the 3 best variations I've tried as STL files. Note that two of these use a 16mm device slot, which works well for tablets but is too loose of a fit to be stable with most phones. The 11mm version works better for phones.

The three orange parts in the top left picture were printed from the 3 stl files posted here.

The multiple hinge p