This motor was created by www.penguinmanufacturing.com, which is at Arts and Technology High School in Marysville, Washington. This is part of a unit our robotics class that serves to teach brazing, electronics, 3D printing and problem solving. We uploaded this to see if others could find some improvements to the design to make our class better. please refer to the directions in one of the gallery pictures. You will need to print two sides and two front and back files. We are working on our battery holder design.