He has made a robotic arm called dARM. It is a robotic arm with 6 degrees of freedom, and most of the parts are 3D printed. He has used brushless DC motors for its working rather than servo motors.

The key aspect behind the sensored brushless motors is the presence of the built-in sensors providing steady real-time feedback regarding the motor's position. These sensors, which are usually Hall ...

Abstract: In this paper, a novel alternating current hybrid excitation brushless generator (AC-HEBG) structure with hybrid-pole rotor is proposed, which exhibits higher power density ... terms of ...

Sensorless brushless DC (BLDC ... The motor controller measures this voltage to determine the rotor's position and commutates the windings accordingly. Since back-EMF is proportional to motor speed, ...