16-gon square & tunnel @EdoTimmermans

16-gon square & tunnel @EdoTimmermans

Uploaded April 2012 | Updated September 2026, 2 weeks ago

This time both polarities of the unit are used. Making the 16-gon requires 2 octagons as shown in the tutorial part.

16-gon square & tunnel

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16-gon square & tunnel