@heckarockstick the twenty triangles in that make the tertiary structure, an icosahedron head, are done individually, using a hexagon close packed stitching pattern that resembles a ten-peptide primary protein structure, with a triangular secondary structure. instead, the ten beads are strung in a ladder, folded, then joined again with a second convoluted ladder to complete the polygon. the sheath is a petoye stitch wrapped on itself to make a cylinder, 6 rows of beads, and 12 beads tall. The legs are simply 2-1-2-1-2... peyotes with a loop tied in the middle to make the bend of the elbow. the IRL pattern is about 50,000 basepairs of DNA, more info here: https://en.wikipedia.org/wiki/Bacteriophage