A presentation on a unique usage of 3D printers was given by Yasusi Kanada (the CTO of Dasyn.com) in the IPSJ Summer Programming Symposium 2014 (originally in Japanese but available in English too). The presentation title was ““3D Turtle Graphics” by 3D Printers”. Turtle graphics is a method of creating (usually) two-dimentional graphics by writing a polygonal line using "turtle". 3D turtle graphics is an extension to generate 3D graphics by a similar method. The proposed method is to generate a 3D printed object by using the method of 3D turtle graphics.
In this presentation, a video on 3D turtle graphics, which was uploaded to YouTube, was shown and the technology was explained.