OLED Screen, Chassis Mount with a Drill

The inexpensive OLED screens are wonderful additions to microcontroller projects, but mounting is a pain. I wanted to make them easier to integrate by providing a parametric model that neatly covers the electronics and can be mounted with a drill into a flat surface.

Drill a 16mm hole and a 3mm hole 20mm apart, and you have your footprint. The mount and shell portions fasten together with four M2 bolts and nuts. The included nut goes on the back. Assembly complete.

The included model works for this [1.3" screen](https://www.amazon.com/gp/product/B06XXTHLNW/).
Cheaper models are available, but they will require modifying the variables in the OpenSCAD code.

The critical values for a different screen are:
[] boardRiserHeight // How thick are the components on the back of the board? Some are very thin.
[] antiRotationPegDiameter // Set this to "0" if you do not want an anti-rotation peg.
[] horizontalDistanceBetweenMountingHoles // Length, in millimeters, between the hole ce