Analysis of information sources in references of the Wikipedia article "魔方" in Chinese language version.
The Helicopter Cube was conceived by Adam G. Cowan in 2005, but wasn’t built until 2006, when Adam discovered that 3D printing could be used to realize the parts.
The Helicopter Cube was conceived by Adam G. Cowan in 2005, but wasn’t built until 2006, when Adam discovered that 3D printing could be used to realize the parts.