Raspberry Pi Bracket

Hi,
i have some old Raspberry Pis and needed some sort of Case / Holder for them.
But all the Models i could find to hold more than one Pi are for newser Versions.

This Idea should fit all Raspberry Pi (B Models) since the first one.

In the Pictures you can see the Raspberry Pi 1 and the 2b mounted in the Bracket.

I designed it first in Tinkercad and after conforming that it works in OpenSCAD

You could modify the SCAD File to get a bracket to fit 4 or more Raspberry Pis.
If you modify the Code you could also fit other PCBs

This is my first creation with openscad so please message me if you can help with the code.