I find it fascinating how clever some people are. The great thing about 3D printing is that people can take their ideas they have in their mind and actually materialize an object. I saw this video today on 3DPrintIndustries and thought it was pretty cool.Basically it shows all sorts of 3D printers which have movable parts and are flexible. The prototypes were generated by Rhino, Grasshopper and Solidworks and fabricated with two additive manufacturing processes, which are Powder Bed Fusion and Fused Deposition Modeling.