S42b Driver Controller: Closed-Loop Motor Control

S42b Closed-Loop Controllers: 2 BTT Closed-Loop Controllers for the X and Y axes. Closed-loop motors cost at least €50 each, so these drivers were developed to add closed-loop control to any motor. The driver can detect the motor’s current position and correct it if inaccurate, thereby preventing layer shifts. Tested and used—they work well and have never caused issues. Everything is in excellent condition. Honestly, I had some doubts when I purchased them, but they truly deliver as promised. I’m happy to assist with installation and configuration—though they’re easy to install. I bought both units on AliExpress directly from the manufacturer for €35; selling for €25. They will be carefully packaged. The main image shows only one small cable, but two cables are included. Reason for sale: Drivers with StealthChop are slightly quieter. Although the noise level is acceptable, I prefer the near-silence of traditional drivers.