pickup - 111110

■Helical Burr Experiment [article] (by Scott Elliott)
http://mysd300.blogspot.com/2011/11/helical-burr-experiment.html

(via My SD300 3D Printer)

■Two Rings For Four Sticks (by Stéphane Chomine)
http://www.asahi-net.or.jp/~RH5K-ISN/Puzzle/1045Ring/TwoRingsForFourSticks/

■Lithium (by Donald Osselaer)
http://www.asahi-net.or.jp/~RH5K-ISN/Puzzle/3BoardBurr/Lithium/

■Aluminium (by Donald Osselaer)
http://www.asahi-net.or.jp/~uy7t-isn/Puzzle/12PieceBurr/Aluminium/

(via ちょいとパズルでも)

■Koch Fractal Ornament (by George Bell)
http://www.shapeways.com/model/359146/

■Koch Ornament, small (by George Bell)
http://www.shapeways.com/model/375613/

(via Poly Puzzles)