TFM 8 - 3d printed Transverse Flux Generator

cults3d

Transverse flux machines are quite fascinating for electric motors and generators, with unique characteristics that make them suitable for low-speed applications requiring high torque. The transverse flux technology was first conceptualized by W.M. Morday, who secured a patent for it back in 1895. In the case of TFM generators, only one coil is present within the iron yoke, and it's also possible to design a three-phase generator. As an electric motor, TFM can be utilized in various applications such as transport, including electric cars, bikes, scooters, electro-skateboards, and more. TFM generators are ideal for wind and hydroelectric power generation, thanks to their ability to operate efficiently at low RPM without the need for gearboxes. The main benefits of this technology include: - Low rotational speeds (less than 1000RPM) - High continuous torque - High copper wire efficiency - Low cost - Compact design The printed parts consist of three models, featuring two body caps and a rotor. Iron plates were cut from electrical steel with a thickness of 0.5mm. For the assembly, an 8mm shaft and a 608 bearing are required; you can source these from old spinners if needed. Additionally, magnets measuring 10x5x5mm are used, featuring axial magnetization as depicted in the images.