config: Rename example-multi-mcu.cfg to sample-multi-mcu.cfg

Rename the sample file to be more similar to the naming of other
files.

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

config/sample-multi-mcu.cfg

@@ -0,0 +1,87 @@
+# This file contains an example configuration with three
+# micro-controllers simultaneously controlling a single printer.
+
+# See both the example.cfg and example-extras.cfg file for a
+# description of available parameters.
+
+
+# The main micro-controller is used as the timing source for all the
+# micro-controllers on the printer. Typically, both the X and Y axes
+# are connected to the main micro-controller.
+[mcu]
+serial: /dev/serial/by-path/platform-3f980000.usb-usb-0:1.2:1.0-port0
+pin_map: arduino
+
+# The "zboard" micro-controller will be used to control the Z axis.
+[mcu zboard]
+serial: /dev/serial/by-path/platform-3f980000.usb-usb-0:1.3:1.0-port0
+pin_map: arduino
+
+# The "auxboard" micro-controller will be used to control the heaters.
+[mcu auxboard]
+serial: /dev/serial/by-path/platform-3f980000.usb-usb-0:1.4:1.0-port0
+pin_map: arduino
+
+[stepper_x]
+step_pin: ar54
+dir_pin: ar55
+enable_pin: !ar38
+step_distance: .0125
+endstop_pin: ^ar3
+position_endstop: 0
+position_max: 200
+homing_speed: 50
+
+[stepper_y]
+step_pin: ar60
+dir_pin: !ar61
+enable_pin: !ar56
+step_distance: .0125
+endstop_pin: ^ar14
+position_endstop: 0
+position_max: 200
+homing_speed: 50
+
+[stepper_z]
+step_pin: zboard:ar46
+dir_pin: zboard:ar48
+enable_pin: !zboard:ar62
+step_distance: .0025
+endstop_pin: ^zboard:ar18
+position_endstop: 0.5
+position_max: 200
+
+[extruder]
+step_pin: auxboard:ar26
+dir_pin: auxboard:ar28
+enable_pin: !auxboard:ar24
+step_distance: .002
+nozzle_diameter: 0.400
+filament_diameter: 1.750
+heater_pin: auxboard:ar10
+sensor_type: EPCOS 100K B57560G104F
+sensor_pin: auxboard:analog13
+control: pid
+pid_Kp: 22.2
+pid_Ki: 1.08
+pid_Kd: 114
+min_temp: 0
+max_temp: 250
+
+[heater_bed]
+heater_pin: auxboard:ar8
+sensor_type: EPCOS 100K B57560G104F
+sensor_pin: auxboard:analog14
+control: watermark
+min_temp: 0
+max_temp: 130
+
+[fan]
+pin: auxboard:ar9
+
+[printer]
+kinematics: cartesian
+max_velocity: 300
+max_accel: 3000
+max_z_velocity: 5
+max_z_accel: 100