config: Update example configs to use rotation_distance

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>

config/printer-wanhao-duplicator-i3-v2.1-2017.cfg

@@ -32,15 +32,12 @@
 #
 # - Copy this sample file you are currently reading to ~/printer.cfg,
 #   and customize the following parameters:
-#   * [extruder] > step_distance
+#   * [extruder] > rotation_distance
 #
 #     This is the inverse of "E steps" (extruder steps per mm) from the stock
 #     Wanhao Repetier-based firmware.
 #     (See https://3dprinterwiki.info/extruder-steps/ )
 #
-#     For example, if your E-steps are set to 107.0 steps per mm,
-#     then step_distance should be (1 / 107.0) ~= .009346
-#
 #   * [extruder] > PID parameters (pid_Kp, pid_Ki, pid_Kd)
 #   * [heater_bed] > PID parameters (pid_Kp, pid_Ki, pid_Kd)
 #
@@ -92,7 +89,8 @@
 step_pin: PD7
 dir_pin: PC5
 enable_pin: !PD6
-step_distance: .0125
+microsteps: 16
+rotation_distance: 40
 endstop_pin: ^!PC2
 position_endstop: 0
 position_max: 200
@@ -102,7 +100,8 @@ homing_speed: 40
 step_pin: PC6
 dir_pin: PC7
 enable_pin: !PD6
-step_distance: .0125
+microsteps: 16
+rotation_distance: 40
 endstop_pin: ^!PC3
 position_endstop: 0
 position_max: 200
@@ -112,7 +111,8 @@ homing_speed: 40
 step_pin: PB3
 dir_pin: !PB2
 enable_pin: !PA5
-step_distance: 0.0025
+microsteps: 16
+rotation_distance: 8
 endstop_pin: ^!PC4
 position_endstop: 0.5
 position_max: 180
@@ -122,7 +122,8 @@ homing_speed: 2
 step_pin: PB1
 dir_pin: !PB0
 enable_pin: !PD6
-step_distance: .009346
+microsteps: 16
+rotation_distance: 29.888
 nozzle_diameter: 0.400
 filament_diameter: 1.750
 heater_pin: PD5