Motors

Christoph Laimer's 3D printed Halbach array brushless motor

Challenges

Electric motors are expensive and difficult to manufacture, and not universally available. Most thermoplastics operate at low melting points not suitable for intense or prolonged motor operation.

Approaches

3D print an electric motor using recycled plastics selected specially for high durability and heat resistance, 3D printers, and vitamins. Design with investment casting, and direct metal printing in mind.

Stepper Motors

Dual-shaft NEMA-17 Stepper motor

• Stepper Motor Basics
• Pneumatic linear stepper motor

Servo Motors

• Dual Cycloidal 41:1 Internal BLDC
• AMT102-V inexpensive shaft mounted rotary encoder with adapters for various motor and shaft types
• Mechaduino servo controller

Utility Motors

• Christoph Laimer's Youtube channel

Alternatives

• 1/2 Horsepower 115 Volt AC 1725 RPM Magnetek Motor
• Salvaged AC, DC, or universal motor - permanent magnet or inductive

Sterling motors

• Sefton motors

Tools

• 3D Printers

Development targets

• https://www.thingiverse.com/thing:20177
• https://www.thingiverse.com/thing:11164
• IRFP260N mosfets - 50A 200V - $3 ea Ebay - same as Controller

References

• Electrical current and phase simulator
• Christoph Laimer