Sierpinski Pyramid

This is a 4-sided sierpinski pyramid, a 3D representation of a sierpinski triangle[1]. Probably not printable, although the inverse might be...

Unfortunately, there isn't too much detail in these renderings because my laptop crapped out rendering anything over 4 iterations.

NOTE: openscadpy[2] is needed to use this .scad file. This thing uses a recursive function which is not possible with openscad

[1] http://en.wikipedia.org/wiki/Sierpinski_triangle
[2] https://github.com/hmeyer/openscadpy