Hyperboloid Container / Caddy

The *hyperboloid* is a very interesting structure. It is fairly easy to make in Fusion 360. Here we have four versions with a bottom to hold little things.

Each stick is 100mm with a diameter of 3mm. The center circle is 40 mm in diameter; the skew angle is 45 degrees. The height of the resulting hyperboloid is about 74 mm. It is made of 18 or 36 copies of two symmetrical rulings.