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Second level tubulating tetraflexagon


  
Figure 32: The 12 vertices of the generic second level tetraflexagon can be connected to produce tubulations.
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Figure 33: Permutation of the squares along the strip for a tubulating second level tetraflexagon.
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Figure 34: Top side of the tubulating second level tetraflexagon. Two strips are shown, sufficient to make both of the two sectors which the flexagon requires.
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Figure 35: Bottom side of the tubulating second level tetraflexagon. Two strips are shown, sufficient to make both of the two sectors which the flexagon requires.
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Microcomputadoras
2000-11-01