Open Frame Unit
![](/small/img/models/t/truncated-icosahedron-open-frame-plain-3-300-dbb3cc2c7.jpg)
![Example use of variant I (bow-tie motif)](/small/img/models/t/truncated-octahedron-open-frame-i-fuse-1-300-a6be8a4be.jpg)
![Example use of variant II (plain)](/small/img/models/t/truncated-icosahedron-open-frame-plain-1-300-2a7e0f7ee.jpg)
This is a relatively simple to fold edge unit. It is quite versatile as far as the possible ways to connect the modules go, and there are two variants, I (bow-tie motif) and II (plain).
This is a relatively simple to fold edge unit. It is quite versatile as far as the possible ways to connect the modules go, and there are two variants, I (bow-tie motif) and II (plain).
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