In this step-by-step tutorial, I walk you through the process of tuning the stepper driver Vref for your 3D printer, focusing specifically on the TMC2208/2209 stepper drivers running in standalone mode.

We start by accessing the printer's motherboard to find the Rsense (resistor) value, along with optionally checking which drivers the board has. This essential initial step ensures we have the right information to proceed.

Next, I guide you through looking up the current rating of each stepper motor. In my case, the Extruder and Y axis feature the Creality 42-40 motor, while the X and Z axis are equipped with the Creality 42-34 motor.

Once we have all the necessary data, I show you how to perform the Vref tuning using a multimeter, screwdriver, and alligator clip. This crucial adjustment ensures optimal motor performance, reducing the risk of overheating or missed steps.

By the end of the video, you'll have the confidence and knowledge to fine-tune your 3D printer's stepper drivers, enhancing its overall performance and precision.

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VREF Calculator: https://printpractical.github.io/Vref...

Links:
Electric Screwdriver: https://amzn.to/3XA2qrv