Californian Nathan Matthews has, in the past, designed and built Delta Tower, Core XY, and Cartesian style 3D printers, and his 3D printed brushless pulse motor recently caught our attention. Matthews says he's always wanted to build a motor, but it took until recently for him to acquire the tools and skills to make it happen with CAD and 3D printing. The designer drew up the frame for his motor in SketchUp, and then 3D printed it in PLA using his own custom, Core XY printer. He says it was printed with very sparse infill, and while he hasn't yet posted his .stl files as he's still considering changing the design for a next iteration, he does plan to share them at some point. You can read the whole story here: http://3dprint.com/89359/3d-print-brushless-pulse-motor


Below is a picture of the 3D printed motor