Sariel--a Polish Lego enthusiast whose given name is Paul--has been building custom Lego models for eight years now, writing two books on the subject. His creative endeavors have been complemented by 3D printing technology, as is evidenced by a recent collaborative effort with his friend Michael Efferman. Efferman designed 3D printed miniature boat propellers and sells them through Shapeways, and Sariel put them to use in a Lego boat. The Lego Technic RC Boat, featuring the 3D printed propellers and an SBrick device for operation, functions impressively. Check out details behind its design at 3DPrint.com: http://3dprint.com/87192/lego-rc-boat/


Below is a photo of Sariel's Lego Technic RC Boat featuring 3D printed propellers: