Category Archives: torque

Arbor Press Modded for Applying Specific Force

Arbor presses are simple and effective tools made for a particular task: exerting force in a specific spot. A 1-ton arbor press fits on a desktop and is very affordable, but doesn’t offer a lot of particularly fine control over the ram beyond lowering and raising it. [concreted0g] got to thinking about ways to gain more control and knowledge about the amount of force being applied, and made a simple modification to combine his press with a torque wrench.

He removed the spindle which raises and lowers the ram, and drilled and tapped it to fit a bolt. Now, by …read more

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Posted in press, tool hacks, torque, torque wrench | Leave a comment

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

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 [Christoph]’s giant 3D-printed BLDC motor from a recent post where he gave the motor a quick test spin. That the motor held together under load despite not being balanced is a testament to the quality of his design and the quality of the prints. But not wishing to tempt fate, and having made a few design changes, [Christoph] wisely chose to perform a static …read more

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Posted in halbach, Kv, misc hacks, power, rotor, stator, torque | Leave a comment