Stacks Image 18

Equation

\[ x^2yz+xy^2+y^3+y^3z = x^2z^2 \]

Properties:

  • degree 4
  • unbounded
  • two singular curves of degree 1, which intersect at the origin
  • two holes. the small hole in the print is not a mistake

Some story

This was one of the first surfaces I had printed, and continues to be a challenge to print well. Because of the ways the surface folds, it requires a lot of support to print well.

The one shown here was printed at the NCSU library's UPrint, from ABS supported by HIPS. I merely provided the model.

input