LEGO EV3 printer/plotter built using one 45544 LEGO® MINDSTORMS® Education EV3 Core Set
and one 45560 LEGO® MINDSTORMS® Education EV3 Expansion Set.
At the beginning this was just a crazy idea that eventually turned into a working device. (The build took about 10 hours + some coding)
The plotter is programmed using the original 1.03H LEGO firmware and the Mindstorms EV3 Home Edition SDK.
Paper size A3 (european format - approx. 42x30 cm), however the effective printing area is a bit smaller (about 38x25 cm / 15x10 inch)
The plotter can draw various types of fractals (Hilbert curve, Dragon curve, H-Tree fractal, Sierpinski Triangle etc.) and Lissajous curves.