The Helicopter Cube was conceived by Adam G. Cowan in 2005 .
The Helicopter Cube was was n'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 was n't built until 2006 , when Adam discovered that 3D printing could be used to realize the parts .