Calibrating 3D printer with RRF

I really enjoy the fact that RRF boards use gcode for calibration, although I found a few specific issues with calibration.

If the PID autotune command (e.g. M303 E0 S200 C8) returns “No heater has been tuned since startup,” it means that E0 is an invalid reference to the heater element. Try using H0 and H1 instead of E-1 and E0.

Tools suggestions

The best tool that I know for calibration is Teaching Tech 3D Printer Calibration .

For linear advance calibration, it references Marlin’s generator. However, if you use RRF, I recommend using this forked generator of test gcode.