My third annual Christmas Tree design. 2017: Futuristic Christmas Tree 2018: Fractal Christmas Tree (Kochmas Tree) 2019: Hypocycloid Christmas Tree The Hypocycloid Christmas Tree is formed by sweeping out 5-hypocycloids iide of a 6-hypocycloid, as their size tape to zero. The two veio use 2 or 3 5-hypocycloids respectively. This design uses the pattern of the Hypocycloid Vase, but tape to zero itead of staying cotant. Vase mode is recommended. Can be lit with a tea light when printed in vase mode with no bottom.