Building a 3D motor printed motor is one thing, but creating a completely custom servo motor with encoder ... Like other PCB motors it produces very little torque, roughly 2% of a typical NEMA17 ...

[Frank Herrmann] had an interesting idea to turn a geared DC motor into a servo motor assembly ... mentions that this assembly has a weight and torque advantage over a NEMA 17 sized stepper ...

Waveshare has recently released the RoArm-M3-Pro and RoArm-M3-S, a 5+1 DOF high-torque ESP32 robotic arm kit. The main ...