Most printer firmwares use an open loop control system for moving their motors around. Step a few times in one direction, and you know where the nozzle of a 3D printer will be.

Posted in Microcontrollers Tagged atmega32u4, BLDC, bldc motor, closed loop control, commutation ...

A closed-loop identification procedure for pure gain-plus noise processes is presented for a family of disturbances that model drift in a discrete-part manufacturing system. Tuning techniques for the ...

The CONEX-AG-LS25-27P combines a piezo motor linear stage with the low-cost architecture of the CONEX controller family. The controller delivers sub-micron, bi-directional repeatability of 0.3 µm.