Build your own electric motor

tep by step, describes how to build a 7kw (20kw peak) axial flux e-motor electric motor the Do-It-Yourself-way. Weights 10 kg the outer diameter is 366 mm, and width about 120 mm, The author explains how to power it with 7 small cheap rc ESC or with a professional kelly controller Here are the details from the author http://www.amazingdiyprojects.com/electric\_motor.html Part 1: General information about DIY axial flux electric motors General information and outer boundaries 7 Air core axial flux motor characteristics 9 Two different ways of sensing rotor position 10 Split stator information 12 Power and efficiency 15 Electromagnetic coils and coil winding tools 16 Permanent magnets 20 Stator structure 21 Rotor structure 23 Part 3: Miscellaneous Part 2: Step-by-step building instructions Exploded view with named parts 27 Making a coil winding tool 28 Calculating length of copper wires 35 Coil winding 36 Building the stator and stator lamination tool 49 Building the rotors 93 Assembly and test running the motor 140 List of materials and tool requirements 147 Where to buy materials online 148 Inspirational pictures 149 Technical drawings 153