My latest polyhedral is a Dual of 4 Frequency Icosahedral Geodesic Sphere that uses a new “lego-like” technique for assembly of a polyhedral using 3D printed internal pieces with laser cut faces. This has been in the works for months, and wasn’t exactly sure it would work. I designed each connector to also house an LED pixel bulb so each face will light up. The faces were laser cut on the :glowforge: using Milky White Cast Acrylic from Houston Acrylic . Polyhedral face pieces were 3D printed on a Bambu X1-Carbon. The internal WLED controller is a Dig2Go powered by plugging into socket power adapter.
Design:
Stella4D was used to generate STL of the shape to import into Fusion360.
This polyhedral has 162 sides comprised of 4 different face shapes. I designed the parts to be lego-like and interlock together. Fusion 360 was used to create all 3D printed parts.
Each part uses 3 colors of PLA filament and has a 1/8" indentation to house the laser cut faces. The LED pixel bulb pressure fit into hole from behind.
Assembly:
The bottom 5 blue faces are a single 3D printed part that rests on lamp light socket. The only parts that are glued together are the first 5 connectors on the bottom lamp base. Everything else is pressure and fits together with much satisfaction.
Lights added in circular pattern from the bottom. 161 pixel lights.
Last 6 pieces were 3D printed with flat external faces to make it easier to snap into place. Tape used to keep shape together during assembly.
