I made a Infinity Cube out of 2 kinds of plugable angles (for the rounded edges.
With a minimal support for the slots.
The Picture of the assembly shows the 2 kinds of angles (red and white)
Maybe you have to scale it down a bit for your likings.
TriangleA.stl | 98.7KB | |
TriangleB.stl | 99.1KB |