Descriptive Geometry


In my high school CAD class we learned to use descriptive geometry for drawing accurate projections of 3D objects using 2D drawing operations.

Five cubes inscribed in a dodecahedron

I figured out how to make this interesting object by plotting cut and fold patterns on thick paper.

Making geodesic spheres from dodecahedrons

Above are front and top views of three successive levels of subdivision.

Close up