feat: Provide mapping and template hardware for Creality printers

config/hardware/displays/CR10_stock_st7920.cfg

@@ -0,0 +1,7 @@
+[display]
+lcd_type = st7920
+cs_pin = EXP1_7
+sclk_pin = EXP1_6            
+sid_pin = EXP1_8
+encoder_pins: ^EXP1_3, ^EXP1_5
+click_pin: ^!EXP1_2

config/hardware/extruder/CR10_stock.cfg

@@ -0,0 +1,21 @@
+[gcode_macro _USER_VARIABLES]
+variable_extruder_enabled: True
+gcode:
+
+[extruder]
+step_pin: E0_STEP
+dir_pin: E0_DIR
+enable_pin: !E0_ENABLE
+microsteps: 16
+rotation_distance: 33.760 # measured 34.400, ratio 0.981 by calibration. (was 33.683)
+nozzle_diameter: 0.400
+filament_diameter: 1.750
+heater_pin: E_HEATER
+sensor_type: EPCOS 100K B57560G104F
+sensor_pin: E_TEMPERATURE
+min_temp: 0
+max_temp: 250
+
+# We also include the default wiring and low thermal hotend patch
+[include default_wiring.cfg]
+[include ../../../macros/helpers/hotend_heater_ctrl.cfg]

config/mcu_definitions/main/Creality_v2.1.cfg

@@ -0,0 +1,79 @@
+[board_pins mcu_manufacturer]
+aliases:
+
+    X_STEP=PF0, 
+    X_DIR=PF1, 
+    X_ENABLE=PD7, 
+    X_STOP=PE5, 
+
+    Y_STEP=PF6, 
+    Y_DIR=PF7, 
+    Y_ENABLE=PF2, 
+    Y_STOP=PJ1, 
+
+    Z_STEP=PL3, 
+    Z_DIR=PL1, 
+    Z_ENABLE=PK0, 
+    Z_STOP=PD3,
+
+    E_STEP=PA4, 
+    E_DIR=PA6, 
+    E_ENABLE=PA2, 
+    E_HEATER=PB4, 
+    E_TEMPERATURE=PK5, 
+
+    #MCU_E1M_STEP=N/A, 
+    #MCU_E1M_DIR=N/A, 
+    #MCU_E1M_ENABLE=N/A, 
+    #MCU_HE1=N/A,
+    #MCU_TH1=N/A,
+
+    BED_HEATER=PH5,
+    BED_TEMPERATURE=PK6, 
+
+    PART_FAN=PH6,
+
+  # EXP1 header
+    EXP1_1=PC0, # Buzzer
+    EXP1_2=PC2, # BTN_ENC
+    EXP1_3=PH0, # LCD E
+    EXP1_4=PH1, # LCDRS
+    EXP1_5=PA1, # D4
+    EXP1_6=PA3, # D5
+    EXP1_7=PA5, # D6
+    EXP1_8=PA7, # D7
+    EXP1_9=<GND>, 
+    EXP1_10=<5V>,
+
+ # EXP2 header
+    EXP2_1=PB3,   # N/C
+    EXP2_2=PB1,   # SCK
+    EXP2_3=PC6,   # BTN ENC2 
+    EXP2_4=PB0,   # N/C
+    EXP2_5=PC4,   # BTN ENC1
+    EXP2_6=PB2,   # MOSI
+    EXP2_7=PL0,   # SD_DETECT
+    EXP2_8=<RST>, # RESET
+    EXP2_9=<GND>, # GND
+    EXP2_10=PG0,  # KILL_PIN
+
+# AUX1 header
+    AUX1_1=<5v>,
+    AUX1_2=<5v>,
+    AUX1_3=<GND>,
+    AUX1_4=<GND>,
+    AUX1_5=PF3,   # A3
+    AUX1_6=PE1,   # TX0
+    AUX1_7=PF4,   # A4
+    AUX1_8=PE0,   # RX0
+
+# EXTRA headers
+# (below EXP2)
+# <SIGNAL>, <GND>, <5V>
+# from top to botttom
+# 
+    EXTRA_1=PK2, # A10
+    EXTRA_2=PK3, # A11
+    EXTRA_3=PB6, # D12
+    EXTRA_4=PB5, # D11
+

macros/helpers/prime_line.cfg

@@ -4,6 +4,7 @@ gcode:
     {% set prime_line_length = params.LINE_LENGTH|default(printer["gcode_macro _USER_VARIABLES"].prime_line_length)|float %}
     {% set prime_line_purge_distance = params.PURGE_LENGTH|default(printer["gcode_macro _USER_VARIABLES"].prime_line_purge_distance)|float %}
     {% set prime_line_flowrate = params.FLOWRATE|default(printer["gcode_macro _USER_VARIABLES"].prime_line_flowrate)|float %}
+    {% set prime_line_height = params.LINE_HEIGHT|default(printer["gcode_macro _USER_VARIABLES"].prime_line_height)|float %}
 
     # Set internal macro vars
     {% set prime_line_x, prime_line_y = printer["gcode_macro _USER_VARIABLES"].prime_line_xy|map('float') %}
@@ -19,40 +20,44 @@ gcode:
     {% set max_extrude_cross_section = printer["configfile"].config["extruder"]["max_extrude_cross_section"]|float %}
     {% set filament_diameter = printer["configfile"].config["extruder"]["filament_diameter"]|float %}
 
-    {% set line_height = 0.6 %}
-
     # some more Macro parameters after retrieving defaults
     {% set prime_line_x = params.START_X|default(prime_line_x)|float %}
     {% set prime_line_y = params.START_Y|default(prime_line_y)|float %}
     {% set prime_line_direction = params.LINE_DIRECTION|default(printer["gcode_macro _USER_VARIABLES"].prime_line_direction)|string|upper %}
 
+    {% if verbose %}
+        {action_respond_info("Prime line length: %.4f" % prime_line_length)}
+        {action_respond_info("Prime line eight: %.4f" % prime_line_height)}
+        {action_respond_info("prime line extrusion length: %4.f" % prime_line_purge_distance)}
+    {% endif %} 
+
     # We first compute the width of the prime line
     {% set purge_volume = prime_line_purge_distance * 3.14159 * (filament_diameter / 2)**2 %}
-    {% set line_width = purge_volume / (line_height * prime_line_length) %}
+    {% set line_width = purge_volume / (prime_line_height * prime_line_length) %}
 
     # Then we check that the prime line cross section will not be problematic (exceeding Klipper max_extrude_cross_section)
     # or, if it's the case, we warn the user and add a correction to the length of filament to be purged
-    {% if (line_height * line_width) > max_extrude_cross_section %}
+    {% if (prime_line_height * line_width) > max_extrude_cross_section %}
         {% if verbose %}
             {action_respond_info("The prime_line_purge_distance of %.4f mm is too high and will exceed the max_extrude_cross_section!" % prime_line_purge_distance)}
         {% endif %}
         {% set prime_line_purge_distance = 0.98 * (max_extrude_cross_section * prime_line_length) / (3.14159 * (filament_diameter / 2)**2) %}
         {% set purge_volume = prime_line_purge_distance * 3.14159 * (filament_diameter / 2)**2 %}
-        {% set line_width = purge_volume / (line_height * prime_line_length) %}
+        {% set line_width = purge_volume / (prime_line_height * prime_line_length) %}
         {% if verbose %}
             {action_respond_info("Klippain corrected the prime_line_purge_distance to %.4f mm" % prime_line_purge_distance)}
         {% endif %}
     {% endif %}
 
     # We then compute the height to width ratio and validate that the prime line will not be too thin
-    {% if (line_height / line_width) >= 0.5 %} # TODO: validate this 1/2 ratio is good for all
+    {% if (prime_line_height / line_width) >= 0.5 %} # TODO: validate this 1/2 ratio is good for all
         {% if verbose %}
             {action_raise_error("The prime line will be too thin and will probably not stick properly to the bed. Increase its purge distance or decrease its length! Aborting...")}
         {% endif %}
     {% endif %}
 
     # Finally we compute the speed to get the correct flowrate for the prime line
-    {% set speed = (prime_line_flowrate / (line_height * line_width)) * 60 |float %}
+    {% set speed = (prime_line_flowrate / (prime_line_height * line_width)) * 60 |float %}
 
     {% if klippain_ercf_enabled %}
         {% if printer.ercf.enabled %}
@@ -78,7 +83,7 @@ gcode:
     # Starting position
     G90
     G0 X{prime_line_x} Y{prime_line_y} F{St}
-    G1 Z{line_height} F{Sz|int / 2}
+    G1 Z{prime_line_height} F{Sz|int / 2}
 
     # Add pressure in the nozzle
     G92 E0

user_templates/variables.cfg

@@ -60,6 +60,7 @@ variable_prime_line_direction: "X" # can also be set to "Y"
 variable_prime_line_length: 40 # length of the prime line on the bed (in mm)
 variable_prime_line_purge_distance: 30 # length of filament to purge (in mm)
 variable_prime_line_flowrate: 10 # mm3/s used for the prime line
+variable_prime_line_height: 0.6 # mm, used for actual cross section computation
 
 ## Park position used when pause, end_print, etc...
 variable_park_position_xy: -1, -1