It is the edge model of a pyramid with a rectangular base (150mm x 100mm) and a height of 120mm.
The height of the pyramid and the heights of the two side surfaces as well as the bottom diagonal and half the rectangular dimensions are shown.
The SCAD file is also available for individual adaptation.
Due to its height, the pyramid can only be printed with support material , as the edges running in the z-direction fluctuate too much at some point.
I have attached the settings I used.
The author hasn't provided the model origin yet.
