Self Hooking Crystalline Network

This complex network structure was grown from a simple form using simple rules. The shape has hooks and cavities in the interior so it can slot together with other copies.
Video on Youtube
https://www.youtube.com/watch?v=wxwvMNF_m2k&index=1&list=PLCTMeyjMKRkrhMSOf0SD677liIG6aaZ_3
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