The universal key

The universal key model to open every forbidden access

CAD tool are parametrics. It means it is easy to modify a dimension (just change the value). So CAD model can be customisable limitless. But CAD sofware are not accessibles. Open scad is the link between the designer and the end user (there is also a 3d printer between)

The barbaric name of the universal key is customizable male/female triangle/square/rectangle/circle with flat plane/cross Key

To make your key, 2 options :

I said universal the longer si to read the parameters description