I'm looking for what I consider the easiest modular model ever. You need three squares
1. You fold each one by its diagonal half, making and isosceles right triangle. 2. You take each 45° tip, place each one on top of the 90° tip and fold, making a square. 3. You crease the square by the diagonal line that separates both folded tips. 4. This units have a "mouth" and two "legs". You connect them all by inserting the legs of A into the mouth of B, the legs of B into the mouth of C, and the legs of C into the mouth of A, and press it all together. 5. At the end you get a 3 unit triangular bipyramid. Do you know this model? Who created it? What's it's real name? Where were the original diagrams published? Thanks in advance!
