# Helix

## Equation

$6x^2-2x^4 = y^2z^2$

## Properties:

• degree 4
• two singular curves, both lines, being the $$y$$ and $$z$$ axes. They intersect at a singular point at the origin.

## Some story

I love this surface, I think it is one of my favorites so far. I took a risk on Helix, printing it large without internal supports, before any trial runs. I feel like I am getting good enough at printing that I can take some risks like this -- and it paid off. It came out beautifully, in 33.5 hours of printing. I reduced the speed to 2000mm/minute to help ensure the risky regions would bridge well.

Sphere of radius 5, random projection.

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