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
Author(s): Axel Borg
Publisher: AmazingDIYProjects
Year: 2010
Language: English
Pages: 161
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
