Stepper motor skipping steps? Overheating? WATCH THIS
In today's episode, I show you how to set VREF / stepper motor currents on Creality Ender 3 32bits silent mainboards (V4.2.2 or V4.2.7) with TMC drivers.
You may need to check or adjust the stepper motor currents when a stepper motor becomes too hot during printing, when a stepper motor skips steps or when replacing a motor with another type.

⏰ Chapters ⏰
0:00 Intro and disclaimer
0:12 When adjusting stepper motor currents?
0:36 Ender 3 stepper motor specifications
0:53 Mainboard version
1:11 Identify stepper drivers with letter on card reader
1:25 Potentiometers to adjust
1:40 Stepper driver specifications and stepper motor current VREF formula
2:08 VREFs for Creality stepper motors
2:34 Tools needed to adjust the stepper motor currents
2:57 Accessing the mainboard
3:11 Measuring nominal VREFs
3:32 Adjusting VREFs

➡ Music: "Elegant Advertising" by SoundDesign (ShutterStock)