the disadvantage of a unipolar stepper motor’s requirement to have twice as much copper in coils and thus weight and bulk is unlikely to ever improve significantly. At this point we have ...

That’s the idea behind [BetaChecker’s] two-axis stepper motor, which looks like it has ... [BetaChecker] has created a platen of 288 hand-wound copper coils, each of which can be selectively ...

“Using copper coils instead of rare Earth materials in the motor’s rotating part is much more accessible,” Talebi stated. “It ...