While 3D printing allows for interesting experiments, such designs form only a preliminary part of the whole product process. For example, reliability, flexing

While 3D printing allows for interesting experiments, such designs form only a preliminary part of the whole product process. For example, reliability, flexing of blades, etc require scale models with similar materials. Blade dynamics, forces on blades, bearing design and sizing, etc, cannot be scaled up across materials. However, an awesome project and an excellent educational tool. In the future, 3D printing labs across the world, will hopefully provide a fertile ground for a new generation of multi-disciplinary engineers and I wish the lines between mechanical, electrical and other areas of engineering blur enough to make a new generation of technology.