this post was submitted on 25 Jun 2026
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99
A Plastic Motor Just Defied a Century of Engineering Assumptions (scitechdaily.com)
submitted 1 day ago by Delta_V@lemmy.world to c/technology@lemmy.world
9 comments fedilink hide all child comments
 

...The discovery expands how motors and actuation systems can be designed. Most electromagnetic motors today depend on magnets and copper coils. This new approach can create motion without magnets or rare earth metals, which could be valuable in a world where material resources are limited.

The design could also be lighter and simpler. Since the rotating component can be made from resin instead of metal, devices may become lighter and faster to respond. That could help in robotics, compact machines, and precision systems.

Because the motor does not depend on magnetic fields, it may also work well in places where magnetic noise causes problems, including medical equipment and data storage devices...

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[–] SkybreakerEngineer@lemmy.world 15 points 23 hours ago (1 children)

As motor benchmarks go, "it moves" is certainly one of them

[–] Cypher@aussie.zone 2 points 19 hours ago (1 children)

Torque: maybe???

Seriously though this could be useful.

Though given how it scales with voltage I can’t think of of any use cases where weight saving is that desperately needed where it would be viable…

[–] partial_accumen@lemmy.world 1 points 3 hours ago

Though given how it scales with voltage I can’t think of of any use cases where weight saving is that desperately needed where it would be viable…

It may not be a weight savings benefit but potentially cost savings. Copper prices are volatile and currently pretty high. If this new technology can be scaled to be produced cheaply, it could replace some expensive copper is specific applications.