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3D-Printed Turbine Rotary Tool Tops 40,000 RPM

3D-Printed Turbine Rotary Tool Tops 40,000 RPM

Author: Dan Maloney / Source: Hackaday For your high speed, low torque needs, few things beat a rotary tool like a Dremel. The electric motor has its limits, though, they generally peak out at 35,000 rpm or so. Plus there’s the dust and the chips to deal...

3D-Printed Halbach Motor Part Two: Tuning, Testing

3D-Printed Halbach Motor Part Two: Tuning, Testing

Author: Dan Maloney / Source: Hackaday Building your own Halbach-effect brushless DC motor is one thing. Making sure it won’t blow up in your face another matter, and watching how [Christoph Laimer] puts his motor to the test is instructive. You’ll remember...

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