These 3D-Printed Geodesic(k) RGB LED Spheres Are Brilliant

Geodesic domes and spheres are created with a pattern of triangles, and have been used for all kinds of art projects and even buildings. In this project — or projects — Whity made a pair of 3D-printed domes, with programmable LED lighting in each one. The smaller device features 80 triangular faces at a diameter of 125mm, while the larger version is comprised of 180 faces with a diameter of 180mm. As seen in the video below, they both look brilliant as they flash through a series of bright colors.

The RGB spheres are controlled by an Arduino Nano, along with an MPU-6050 gyroscope/accelerometer to sense movement, and a series of 18650 batteries for power. The dome is constructed in two halves that are stuck together with magnets for access. Eventually, the internals may be switched to an ESP32-based controller, expanding its interface possibilities significantly.

While the electronics are fairly standard, the print process was not. In fact, Whity spent well over 100 hours on this project, producing sets of triangles that are attached together with printed hinges to facilitate assembly. Even with his design work, he notes that, “This is not a simple print, assemble and enjoy project. It requires quite some experience, basic knowledge in electronics, a good amount of patience and probably some nerves.” However, the results are staggering. When he turned it on for the first time he was left speechless and staring at this luminescent creation for what may have been hours!