Hilbert Curve Coasters

Here are 4 coasters illustrated with images of the Hilbert curve.

The Hilbert curve is usually generated in stages and the first coaster shows four separate curves of first, second, third and fourth orders.

The other three coasters display fourth order curves where individual lines are replaced by larger and larger rectangles. The effect is to create patterns with interesting symmetry.

The four sets of stl files are:

medley_coaster.stl and medley_pattern.stl
four_30_coaster.stl a