diff --git a/cfgs/CALIBRATION.cfg b/cfgs/CALIBRATION.cfg
index 589b963..7458fa0 100644
--- a/cfgs/CALIBRATION.cfg
+++ b/cfgs/CALIBRATION.cfg
@@ -22,6 +22,7 @@ gcode:
     G1 X{max_x/2} Y{max_y/2} Z10 F6000
     M106 S64
     PID_CALIBRATE HEATER=extruder TARGET={TARGETTEMP}
+    M107 ; Turn off print cooling fan
 
 # TODO test this
 [gcode_macro PID_TEST_ALL]
diff --git a/printer.cfg b/printer.cfg
index 6b21e56..9565a9f 100644
--- a/printer.cfg
+++ b/printer.cfg
@@ -96,7 +96,7 @@ step_pin: PB4
 dir_pin: !PB3
 enable_pin: !PC3
 microsteps: 128
-rotation_distance: 4.65 # NOTE Calibrate e-steps and adjust https://www.klipper3d.org/Rotation_Distance.html
+rotation_distance: 4.65 # NOTE Calibrate e-steps https://www.klipper3d.org/Rotation_Distance.html#calibrating-rotation_distance-on-extruders, https://github.com/bassamanator/everything-sovol-sv06/blob/main/howto.md#calibrate-esteps
 nozzle_diameter: 0.400
 filament_diameter: 1.750
 heater_pin: PA1