Construction System 197

thingiverse

This is one of my all-time favorite construction systems because it's comprised of just one primitive element. When six are combined into a solid cube, you've got a building block that can seamlessly connect with any other cube on any face. It's incredibly easy to print and lends itself perfectly to injection molding processes. I highly recommend giving it a try! Also, be sure to check out Construction System 200 for a single-cube based version of this - it may be slightly harder to print, but the end result is stronger and more stable overall.