@phooky I'll check out the book, thanks!
in this case I transcribed the result of L/2*sqrt(3/2) incorrectly: 42.5cm instead of 45.2cm. Not my first time making failed tensegrity structures, definitely not the last either... https://trmm.net/Tensegrity/
@th still trying to furnish the m c escher suite, i see
@th I feel this so hard
Also Kenner's "Geodesic Math and How To Use It" is your friend