diff --git a/firmware/klipper_configurations/SKR_1.3/Voron2_SKR_13_Config.cfg b/firmware/klipper_configurations/SKR_1.3/Voron2_SKR_13_Config.cfg
index c25e071..2f3f331 100644
--- a/firmware/klipper_configurations/SKR_1.3/Voron2_SKR_13_Config.cfg
+++ b/firmware/klipper_configurations/SKR_1.3/Voron2_SKR_13_Config.cfg
@@ -63,9 +63,9 @@
 ##	[X in X] - B Motor
 ##	[Y in Y] - A Motor
 ##	[E in E0] - Extruder
-##	Obtain definition by "ls -l /dev/serial/by-path/" then unplug to verify
+##	Obtain definition by "ls -l /dev/serial/by-id/" then unplug to verify
 ##--------------------------------------------------------------------
-serial: /dev/serial/by-path/platform-3f980000.usb-usb-0:1.1.2:1.0 
+serial: /dev/serial/by-id/usb-Klipper_lpc1768_00000-if00
 ##--------------------------------------------------------------------
 
 [mcu z]
@@ -74,9 +74,9 @@ serial: /dev/serial/by-path/platform-3f980000.usb-usb-0:1.1.2:1.0
 ##	[Z1 in Y] - Rear Left
 ##	[Z2 in Z] - Rear Right
 ##	[Z3 in E0]- Front Right
-##	Obtain definition by "ls -l /dev/serial/by-path/" then unplug to verify
+##	Obtain definition by "ls -l /dev/serial/by-id/" then unplug to verify
 ##--------------------------------------------------------------------
-serial: /dev/serial/by-path/platform-3f980000.usb-usb-0:1.1.3:1.0
+serial: /dev/serial/by-id/usb-Klipper_lpc1768_00000-if00
 ##--------------------------------------------------------------------
 
 [printer]
@@ -96,7 +96,9 @@ square_corner_velocity: 5.0  #Can experiment with 8.0, default 5.0
 step_pin: P2.2
 dir_pin: !P2.6
 enable_pin: !P2.1
-step_distance: 0.0125
+rotation_distance: 40
+microsteps: 16
+# full_steps_per_rotation:200  #set to 400 for 0.9 degree stepper
 endstop_pin: P1.28
 position_min: 0
 ##--------------------------------------------------------------------
@@ -121,7 +123,6 @@ homing_positive_dir: true
 ##	Make sure to update below for your relevant driver (2208 or 2209)
 [tmcXXXX stepper_x]
 uart_pin: P1.17
-microsteps: 16
 interpolate: True
 run_current: 0.8
 hold_current: 0.7
@@ -133,7 +134,9 @@ stealthchop_threshold: 0
 step_pin: P0.19
 dir_pin: !P0.20
 enable_pin: !P2.8
-step_distance: 0.0125
+rotation_distance: 40
+microsteps: 16
+# full_steps_per_rotation:200  #set to 400 for 0.9 degree stepper
 endstop_pin: P1.26
 position_min: 0
 ##--------------------------------------------------------------------
@@ -158,7 +161,6 @@ homing_positive_dir: true
 ##	Make sure to update below for your relevant driver (2208 or 2209)
 [tmcXXXX stepper_y]
 uart_pin: P1.15
-microsteps: 16
 interpolate: True
 run_current: 0.8
 hold_current: 0.7
@@ -175,7 +177,9 @@ stealthchop_threshold: 0
 step_pin: z:P2.2
 dir_pin: !z:P2.6
 enable_pin: !z:P2.1
-step_distance: 0.00250
+rotation_distance: 40
+gear_ratio: 80:16
+microsteps: 16
 endstop_pin: z:P1.25
 ##  Z-position of nozzle (in mm) to z-endstop trigger point relative to print surface (Z0)
 ##  (+) value = endstop above Z0, (-) value = endstop below
@@ -202,7 +206,6 @@ homing_retract_dist: 3.0
 ##	Make sure to update below for your relevant driver (2208 or 2209)
 [tmcXXXX stepper_z]
 uart_pin: z:P1.17
-microsteps: 16
 interpolate: true
 run_current: 0.8
 hold_current: 0.8
@@ -215,12 +218,13 @@ stealthchop_threshold: 0
 step_pin: z:P0.19
 dir_pin: z:P0.20
 enable_pin: !z:P2.8
-step_distance: 0.00250
+rotation_distance: 40
+gear_ratio: 80:16
+microsteps: 16
 
 ##	Make sure to update below for your relevant driver (2208 or 2209)
 [tmcXXXX stepper_z1]
 uart_pin: z:P1.15
-microsteps: 16
 interpolate: true
 run_current: 0.8
 hold_current: 0.80
@@ -233,12 +237,13 @@ stealthchop_threshold: 0
 step_pin: z:P0.22
 dir_pin: !z:P2.11
 enable_pin: !z:P0.21
-step_distance: 0.00250
+rotation_distance: 40
+gear_ratio: 80:16
+microsteps: 16
 
 ##	Make sure to update below for your relevant driver (2208 or 2209)
 [tmcXXXX stepper_z2]
 uart_pin: z:P1.10
-microsteps: 16
 interpolate: true
 run_current: 0.8
 hold_current: 0.80
@@ -251,12 +256,13 @@ stealthchop_threshold: 0
 step_pin: z:P2.13
 dir_pin: z:P0.11
 enable_pin: !z:P2.12
-step_distance: 0.00250
+rotation_distance: 40
+gear_ratio: 80:16
+microsteps: 16
 
 ##	Make sure to update below for your relevant driver (2208 or 2209)
 [tmcXXXX stepper_z3]
 uart_pin: z:P1.8
-microsteps: 16
 interpolate: true
 run_current: 0.8
 hold_current: 0.80
@@ -275,11 +281,11 @@ dir_pin: P0.11
 enable_pin: !P2.12
 ##	16 microsteps Mobius 3 ~= 0.00180
 ##	Update value below when you perform extruder calibration
-##	Higher value means less filament extruded
 ##	If you ask for 100mm of filament, but in reality it is 98mm:
-##	step_distance = 98 / 100 * step_distance_old
-##  0.00240 a good starting value for Afterburner, 0.00180 for Mobius
-step_distance: 0.00240
+##	rotation_distance = <previous_rotation_distance> * <actual_extrude_distance> / 100
+##  7.68 a good starting value for Afterburner, 5.76 for Mobius
+rotation_distance: 7.68
+microsteps: 16
 nozzle_diameter: 0.400
 filament_diameter: 1.75
 heater_pin: P2.7
@@ -303,7 +309,6 @@ pressure_advance_smooth_time: 0.040
 ##	Make sure to update below for your relevant driver (2208 or 2209)
 [tmcXXXX extruder]
 uart_pin: P1.9
-microsteps: 16
 interpolate: false
 run_current: 0.5
 hold_current: 0.4
diff --git a/firmware/klipper_configurations/SKR_1.4/Voron2_SKR_14_Config.cfg b/firmware/klipper_configurations/SKR_1.4/Voron2_SKR_14_Config.cfg
index fe09b2c..2b2fb87 100644
--- a/firmware/klipper_configurations/SKR_1.4/Voron2_SKR_14_Config.cfg
+++ b/firmware/klipper_configurations/SKR_1.4/Voron2_SKR_14_Config.cfg
@@ -63,9 +63,9 @@
 ##	[X in X] - B Motor
 ##	[Y in Y] - A Motor
 ##	[E in E0] - Extruder
-##	Obtain definition by "ls -l /dev/serial/by-path/" then unplug to verify
+##	Obtain definition by "ls -l /dev/serial/by-id/" then unplug to verify
 ##--------------------------------------------------------------------
-serial: /dev/serial/by-path/platform-3f980000.usb-usb-0:1.1.2:1.0 
+serial: /dev/serial/by-id/usb-Klipper_lpc1768_00000-if00
 ##--------------------------------------------------------------------
 
 [mcu z]
@@ -74,9 +74,9 @@ serial: /dev/serial/by-path/platform-3f980000.usb-usb-0:1.1.2:1.0
 ##	[Z1 in Y] - Rear Left
 ##	[Z2 in Z] - Rear Right
 ##	[Z3 in E0]- Front Right
-##	Obtain definition by "ls -l /dev/serial/by-path/" then unplug to verify
+##	Obtain definition by "ls -l /dev/serial/by-id/" then unplug to verify
 ##--------------------------------------------------------------------
-serial: /dev/serial/by-path/platform-3f980000.usb-usb-0:1.1.3:1.0
+serial: /dev/serial/by-id/usb-Klipper_lpc1768_00000-if00
 ##--------------------------------------------------------------------
 
 [printer]
@@ -96,7 +96,9 @@ square_corner_velocity: 5.0  #Can experiment with 8.0, default 5.0
 step_pin: P2.2
 dir_pin: !P2.6
 enable_pin: !P2.1
-step_distance: 0.0125
+rotation_distance: 40
+microsteps: 16
+# full_steps_per_rotation:200  #set to 400 for 0.9 degree stepper
 endstop_pin: P1.29
 position_min: 0
 ##--------------------------------------------------------------------
@@ -121,7 +123,6 @@ homing_positive_dir: true
 ##	Make sure to update below for your relevant driver (2208 or 2209)
 [tmcXXXX stepper_x]
 uart_pin: P1.10
-microsteps: 16
 interpolate: True
 run_current: 0.8
 hold_current: 0.7
@@ -133,7 +134,9 @@ stealthchop_threshold: 0
 step_pin: P0.19
 dir_pin: !P0.20
 enable_pin: !P2.8
-step_distance: 0.0125
+rotation_distance: 40
+microsteps: 16
+# full_steps_per_rotation:200  #set to 400 for 0.9 degree stepper
 endstop_pin: P1.28
 position_min: 0
 ##--------------------------------------------------------------------
@@ -158,7 +161,6 @@ homing_positive_dir: true
 ##	Make sure to update below for your relevant driver (2208 or 2209)
 [tmcXXXX stepper_y]
 uart_pin: P1.9
-microsteps: 16
 interpolate: True
 run_current: 0.8
 hold_current: 0.7
@@ -175,7 +177,9 @@ stealthchop_threshold: 0
 step_pin: z:P2.2
 dir_pin: !z:P2.6
 enable_pin: !z:P2.1
-step_distance: 0.00250
+rotation_distance: 40
+gear_ratio: 80:16
+microsteps: 16
 endstop_pin: z:P1.27
 ##  Z-position of nozzle (in mm) to z-endstop trigger point relative to print surface (Z0)
 ##  (+) value = endstop above Z0, (-) value = endstop below
@@ -202,7 +206,6 @@ homing_retract_dist: 3.0
 ##	Make sure to update below for your relevant driver (2208 or 2209)
 [tmcXXXX stepper_z]
 uart_pin: z:P1.10
-microsteps: 16
 interpolate: true
 run_current: 0.8
 hold_current: 0.8
@@ -215,12 +218,13 @@ stealthchop_threshold: 0
 step_pin: z:P0.19
 dir_pin: z:P0.20
 enable_pin: !z:P2.8
-step_distance: 0.00250
+rotation_distance: 40
+gear_ratio: 80:16
+microsteps: 16
 
 ##	Make sure to update below for your relevant driver (2208 or 2209)
 [tmcXXXX stepper_z1]
 uart_pin: z:P1.9
-microsteps: 16
 interpolate: true
 run_current: 0.8
 hold_current: 0.8
@@ -233,12 +237,13 @@ stealthchop_threshold: 0
 step_pin: z:P0.22
 dir_pin: !z:P2.11
 enable_pin: !z:P0.21
-step_distance: 0.00250
+rotation_distance: 40
+gear_ratio: 80:16
+microsteps: 16
 
 ##	Make sure to update below for your relevant driver (2208 or 2209)
 [tmcXXXX stepper_z2]
 uart_pin: z:P1.8
-microsteps: 16
 interpolate: true
 run_current: 0.8
 hold_current: 0.80
@@ -251,12 +256,13 @@ stealthchop_threshold: 0
 step_pin: z:P2.13
 dir_pin: z:P0.11
 enable_pin: !z:P2.12
-step_distance: 0.00250
+rotation_distance: 40
+gear_ratio: 80:16
+microsteps: 16
 
 ##	Make sure to update below for your relevant driver (2208 or 2209)
 [tmcXXXX stepper_z3]
 uart_pin: z:P1.4
-microsteps: 16
 interpolate: true
 run_current: 0.8
 hold_current: 0.80
@@ -275,11 +281,11 @@ dir_pin: P0.11
 enable_pin: !P2.12
 ##	16 microsteps Mobius 3 ~= 0.00180
 ##	Update value below when you perform extruder calibration
-##	Higher value means less filament extruded
 ##	If you ask for 100mm of filament, but in reality it is 98mm:
-##	step_distance = 98 / 100 * step_distance_old
-##  0.00240 a good starting value for Afterburner, 0.00180 for Mobius
-step_distance: 0.00240 
+##	rotation_distance = <previous_rotation_distance> * <actual_extrude_distance> / 100
+##  7.68 a good starting value for Afterburner, 5.76 for Mobius
+rotation_distance: 7.68
+microsteps: 16
 nozzle_diameter: 0.400
 filament_diameter: 1.75
 heater_pin: P2.7
@@ -303,7 +309,6 @@ pressure_advance_smooth_time: 0.040
 ##	Make sure to update below for your relevant driver (2208 or 2209)
 [tmcXXXX extruder]
 uart_pin: P1.4
-microsteps: 16
 interpolate: false
 run_current: 0.5
 hold_current: 0.4