Triangles are great, and rhombuses are essentially two triangles combined. Does that make them doubly great?
This 60° rhombus Polypanel matches the space of two triangle panels stuck together. One less hinge means
Fusion360 File : https://a360.co/2OEbnwo (just tag this model if you remix!)
What are Polypanels?
"Welcome to the world of Polypanels, a system of snap together parts that let you build whatever you want! It’s like an open-ended construction toy for making functional things, harnessing the power of 3D printing and the community to make it truly limitless."
Intro to Polypanels