Extraordinarily common BLDC motor fashions are comparatively reasonably priced. However in case you want something even barely specialised, the value shoots up dramatically. Aotenjo discovered that it was extra economical to rewind off-the-shelf motors (ideally used) for the duty at hand and constructed a machine to do the winding. That labored properly and now he needs to rewind wind even bigger BLDC motors, so he upgraded the winding machine to deal with some significantly massive spinny boys.
Aotenjo’s common use case is rewinding high-speed, low-torque BLDC motors (such as you’d get for a drone) to make them low-speed, excessive torque and appropriate for servos in automated machines. That idea was profitable with massive drone motors, however now Aotenjo needs to maneuver as much as a special tier. He needs to rewind the sorts of BLDC motors made for e-scooters and people are fairly huge — actually.
Managing that mass was the main focus of this new motor winding machine design. The primary stator axis was scaled as much as 25mm and the unique lead screw was upgraded to a ball screw. Beefier mechanical elements had been CNC-milled by JLCCNC.
To carry out the winding movement, the machine requires 4 motors. The primary strikes the stator out and in relative to the winder, the second rotates the stator, the third spins the winder, and the fourth adjusts wire pressure. All of these are BLDC motors working underneath closed-loop management, overseen by Aotenjo’s personal Aotenjo Grasp controller. That controller is constructed round an STM32 microcontroller and communicates with the motors’ onboard drivers by means of a CAN bus.
The upgraded motor winder is promising, however Aotenjo hasn’t but finalized the design. He plans to check it with the bigger BLDC motors, which may weigh as a lot as 4kg, and refine the design as essential.