Updated K40 example config files in docs

Documentation/Laser/K40_ramps_configs/Configuration_Basic.h

@@ -9,7 +9,6 @@
  * - Extruders number
  * - Thermistor type
  * - Temperature limits
- * - UI Language
  *
  * Mechanisms-settings can be found in Configuration_Xxxxxx.h (where Xxxxxx can be: Cartesian - Delta - Core - Scara)
  * Feature-settings can be found in Configuration_Feature.h
@@ -52,9 +51,14 @@
 //#define FIRMWARE_TEST
 
 // Some particular clients re-start sending commands only after receiving a 'wait' when there is a bad serial-connection.
-//#define NO_TIMEOUTS
+//#define NO_TIMEOUTS 1000 // Milliseconds
 // Uncomment to include more info in ok command
 //#define ADVANCED_OK
+
+// By default MarlinKimbra will send a busy status message to the host
+// every couple of seconds when it can't accept commands.
+// Enable this option if your host doesn't like keepalive messages.
+//#define DISABLE_HOST_KEEPALIVE
 /***********************************************************************/
 
 
@@ -72,10 +76,22 @@
 
 /***********************************************************************
  *************************** Mechanism type ****************************
+ ***********************************************************************
+ *                                                                     *
+ * CARTESIAN  - Prusa, Mendel, etc                                     *
+ * COREXY     - H-Bot/Core XY (x_motor = x+y, y_motor = x-y)           *
+ * COREYX     - H-Bot/Core XY (x_motor = y+x, y_motor = y-x)           *
+ * COREXZ     - H-Bot/Core XZ (x_motor = x+z, z_motor = x-z)           *
+ * COREZX     - H-Bot/Core XZ (x_motor = z+x, z_motor = z-x)           *
+ * DELTA      - Rostock, Kossel, RostockMax, Cerberus, etc             *
+ * SCARA      - SCARA                                                  *
+ *                                                                     *
  ***********************************************************************/
 #define MECHANISM MECH_CARTESIAN
 //#define MECHANISM MECH_COREXY
+//#define MECHANISM MECH_COREYX
 //#define MECHANISM MECH_COREXZ
+//#define MECHANISM MECH_COREZX
 //#define MECHANISM MECH_DELTA
 //#define MECHANISM MECH_SCARA
 /***********************************************************************/
@@ -156,11 +172,12 @@
  *  998 and 999 are Dummy Tables. ALWAYS read 25°C or DUMMY_THERMISTOR_998_VALUE temperature        *
  *                                                                                                   *
  *****************************************************************************************************/
-#define TEMP_SENSOR_0 40
+#define TEMP_SENSOR_0 0
 #define TEMP_SENSOR_1 0
 #define TEMP_SENSOR_2 0
 #define TEMP_SENSOR_3 0
 #define TEMP_SENSOR_BED 0
+#define TEMP_SENSOR_COOLER 40
 
 //These 2 defines help to calibrate the AD595 sensor in case you get wrong temperature measurements.
 //The measured temperature is defined as "actualTemp = (measuredTemp * TEMP_SENSOR_AD595_GAIN) + TEMP_SENSOR_AD595_OFFSET"
@@ -180,12 +197,18 @@
 /***********************************************************************
  ************************* Temperature limits ***************************
  ***********************************************************************/
-// Actual temperature must be close to target for this long before M109 returns success
+// Hotend temperature must be close to target for this long before M109 returns success
 #define TEMP_RESIDENCY_TIME 10  // (seconds)
 #define TEMP_HYSTERESIS 3       // (degC) range of +/- temperatures considered "close" to the target one
 #define TEMP_WINDOW     1       // (degC) Window around target to start the residency timer x degC early.
 
+// Bed temperature must be close to target for this long before M190 returns success
+#define TEMP_BED_RESIDENCY_TIME 0   // (seconds)
+#define TEMP_BED_HYSTERESIS 3       // (degC) range of +/- temperatures considered "close" to the target one
+#define TEMP_BED_WINDOW     1       // (degC) Window around target to start the residency timer x degC early.
+
 // When temperature exceeds max temp, your heater will be switched off.
+// When temperature exceeds max temp, your cooler cannot be activaed.
 // This feature exists to protect your hotend from overheating accidentally, but *NOT* from thermistor short/failure!
 // You should use MINTEMP for thermistor short/failure protection.
 #define HEATER_0_MAXTEMP 275 // (degC)
@@ -193,8 +216,10 @@
 #define HEATER_2_MAXTEMP 275 // (degC)
 #define HEATER_3_MAXTEMP 275 // (degC)
 #define BED_MAXTEMP      150 // (degC)
+#define COOLER_MAXTEMP   30  // 
 
 // The minimal temperature defines the temperature below which the heater will not be enabled It is used
+// or, in case of cooler, it will switched off.
 // to check that the wiring to the thermistor is not broken.
 // Otherwise this would lead to the heater being powered on all the time.
 #define HEATER_0_MINTEMP 5 // (degC)
@@ -202,6 +227,7 @@
 #define HEATER_2_MINTEMP 5 // (degC)
 #define HEATER_3_MINTEMP 5 // (degC)
 #define BED_MINTEMP      5 // (degC)
+#define COOLER_MINTEMP  15 // (degC) 
 
 //Preheat Constants
 #define PLA_PREHEAT_HOTEND_TEMP 190
@@ -217,34 +243,4 @@
 #define GUM_PREHEAT_FAN_SPEED   255   // Insert Value between 0 and 255
 /*****************************************************************************************************/
 
-
-/***********************************************************************
- *************************** UI Language  ******************************
- ***********************************************************************
- *                                                                     *
- * Select the language that you prefer and change LANGUAGE_CHOICE      *
- *                                                                     *
- * 1  English                                                          *
- * 2  Polish                                                           *
- * 3  French                                                           *
- * 4  German                                                           *
- * 5  Spanish                                                          *
- * 6  Russian                                                          *
- * 7  Italian                                                          *
- * 8  Portuguese                                                       *
- * 9  Finnish                                                          *
- * 10 Aragonese                                                        *
- * 11 Dutch                                                            *
- * 12 Danish                                                           *
- * 13 Catalan                                                          *
- * 14 Basque-Euskera                                                   *
- * 15 Portuguese (Brazil)                                              *
- * 16 Bulgarian                                                        *
- * 17 Japanese                                                         *
- * 18 Japanese utf                                                     *
- * 19 Chinese                                                          *
- *                                                                     *
- ***********************************************************************/
-#define LANGUAGE_CHOICE 1
-/***********************************************************************/
 #endif

Documentation/Laser/K40_ramps_configs/Configuration_Cartesian.h

@@ -278,9 +278,19 @@
 
 // Offsets to the probe relative to the extruder tip (Hotend - Probe)
 // X and Y offsets MUST be INTEGERS
-#define X_PROBE_OFFSET_FROM_EXTRUDER 0      // Probe on: -left  +right
-#define Y_PROBE_OFFSET_FROM_EXTRUDER 0      // Probe on: -front +behind
-#define Z_PROBE_OFFSET_FROM_EXTRUDER -1     // -below (always!)
+//
+//    +-- BACK ---+
+//    |           |
+//  L |    (+) P  | R <-- probe (10,10)
+//  E |           | I
+//  F | (-) N (+) | G <-- nozzle (0,0)
+//  T |           | H
+//    |  P (-)    | T <-- probe (-10,-10)
+//    |           |
+//    O-- FRONT --+
+#define X_PROBE_OFFSET_FROM_EXTRUDER  0     // X offset: -left  [of the nozzle] +right
+#define Y_PROBE_OFFSET_FROM_EXTRUDER  0     // Y offset: -front [of the nozzle] +behind
+#define Z_PROBE_OFFSET_FROM_EXTRUDER -1     // Z offset: -below [of the nozzle] (always negative!)
 
 #define Z_RAISE_BEFORE_HOMING        10     // (in mm) Raise Z before homing (G28) for Probe Clearance.
                                             // Be sure you have this distance over your Z_MAX_POS in case
@@ -419,8 +429,8 @@
  * For the other hotends it is their distance from the hotend 0.                         *
  *                                                                                       *
  *****************************************************************************************/
-//#define HOTEND_OFFSET_X {0.0, 5.0, 0.0, 0.0} // (in mm) for each hotend, offset of the hotend on the X axis
-//#define HOTEND_OFFSET_Y {0.0, 5.0, 0.0, 0.0} // (in mm) for each hotend, offset of the hotend on the Y axis
+//#define HOTEND_OFFSET_X {0.0, 0.0, 0.0, 0.0} // (in mm) for each hotend, offset of the hotend on the X axis
+//#define HOTEND_OFFSET_Y {0.0, 0.0, 0.0, 0.0} // (in mm) for each hotend, offset of the hotend on the Y axis
 //#define HOTEND_OFFSET_Z {0.0, 0.0, 0.0, 0.0} // (in mm) for each hotend, offset of the hotend on the Z axis
 /*****************************************************************************************/
 

Documentation/Laser/K40_ramps_configs/Configuration_Feature.h

@@ -53,6 +53,7 @@
  * ADDON FEATURES:
  * - EEPROM
  * - SDCARD
+ * - LCD Language
  * - LCD
  * - Canon RC-1 Remote
  * - Camera trigger
@@ -169,6 +170,7 @@
 
 // Comment the following line to disable PID and enable bang-bang.
 #define PIDTEMP
+//#define PID_AUTOTUNE_MENU // Add PID Autotune to the LCD "Temperature" menu to run M303 and apply the result.
 //#define PID_DEBUG         // Sends debug data to the serial port.
 //#define PID_OPENLOOP 1    // Puts PID in open loop. M104/M140 sets the output power from 0 to PID_MAX
 //#define SLOW_PWM_HEATERS  // PWM with very low frequency (roughly 0.125Hz=8s) and minimum state time of approximately 1s useful for heaters driven by a relay
@@ -182,12 +184,53 @@
 #define LPQ_MAX_LEN 50
 
 //           HotEnd{HE0,HE1,HE2,HE3}
-#define DEFAULT_Kp {40, 40, 40, 40}     // Kp for E0, E1, E2, E3
-#define DEFAULT_Ki {07, 07, 07, 07}     // Ki for E0, E1, E2, E3
-#define DEFAULT_Kd {60, 60, 60, 60}     // Kd for E0, E1, E2, E3
+#define DEFAULT_Kp {40, 40, 40, 40}     // Kp for H0, H1, H2, H3
+#define DEFAULT_Ki {07, 07, 07, 07}     // Ki for H0, H1, H2, H3
+#define DEFAULT_Kd {60, 60, 60, 60}     // Kd for H0, H1, H2, H3
 #define DEFAULT_Kc {100, 100, 100, 100} // heating power = Kc * (e_speed)
 /***********************************************************************/
 
+/***********************************************************************
+ ************************ PID Settings - COOLER ************************
+ ***********************************************************************
+ *                                                                     *
+ * PID Tuning Guide here: http://reprap.org/wiki/PID_Tuning            *
+ * Select PID or bang-bang with PIDTEMPCOOLER.                         *
+ * If bang-bang, COOLER_LIMIT_SWITCHING will enable hysteresis         *
+ *                                                                     *
+ ***********************************************************************/
+// Uncomment this to enable PID on the cooler. It uses the same frequency PWM as the extruder
+// if you use a software PWM or the frequency you select if using an hardware PWM
+// If your PID_dT is the default, you use a software PWM, and correct for your hardware/configuration, that means 7.689Hz,
+// which is fine for driving a square wave into a resistive load and does not significantly impact you FET heating.
+// This also works fine on a Fotek SSR-10DA Solid State Relay into a 250W cooler.
+// If your configuration is significantly different than this and you don't understand the issues involved, you probably
+// shouldn't use bed PID until someone else verifies your hardware works.
+// If this is enabled, find your own PID constants below.
+//#define PIDTEMPCOOLER
+
+//#define COOLER_LIMIT_SWITCHING
+#define COOLER_HYSTERESIS 2 //only disable heating if T<target-COOLER_HYSTERESIS and enable heating if T<target+COOLER_HYSTERESIS (works only if COOLER_LIMIT_SWITCHING is enabled)
+#define COOLER_CHECK_INTERVAL 5000 //ms between checks in bang-bang control
+
+// This sets the max power delivered to the bed.
+// all forms of bed control obey this (PID, bang-bang, bang-bang with hysteresis)
+// setting this to anything other than 255 enables a form of PWM to the bed,
+// so you shouldn't use it unless you are OK with PWM on your bed.  (see the comment on enabling PIDTEMPCOOLER)
+#define MAX_COOLER_POWER 255 // limits duty cycle to bed; 255=full current
+
+#define PID_COOLER_INTEGRAL_DRIVE_MAX MAX_COOLER_POWER // limit for the integral term
+// 120v 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
+// from FOPDT model - kp=.39 Tp=405 Tdead=66, Tc set to 79.2, aggressive factor of .15 (vs .1, 1, 10)
+#define DEFAULT_coolerKp 10.00
+#define DEFAULT_coolerKi .023
+#define DEFAULT_coolerKd 305.4
+
+// FIND YOUR OWN: "M303 E-1 C8 S90" to run autotune on the bed at 90 degreesC for 8 cycles.
+
+//#define PID_COOLER_DEBUG // Sends debug data to the serial port.
+/***********************************************************************/
+
 
 /***********************************************************************
  ************************ PID Settings - BED ***************************
@@ -245,13 +288,13 @@
  ************************ Thermal runaway protection ****************************
  ********************************************************************************
  *                                                                              *
- * This protects your printer from damage and fire if a thermistor              *
+ * This protects your device from damage and fire if a thermistor               *
  * falls out or temperature sensors fail in any way.                            *
  *                                                                              *
  * The issue: If a thermistor falls out or a temperature sensor fails,          *
  * Marlin can no longer sense the actual temperature. Since a                   *
  * disconnected thermistor reads as a low temperature, the firmware             *
- * will keep the heater on.                                                     *
+ * will keep the heater/cooler on.                                              *
  *                                                                              *
  * The solution: Once the temperature reaches the target, start                 *
  * observing. If the temperature stays too far below the                        *
@@ -260,6 +303,7 @@
  *                                                                              *
  * Uncomment THERMAL_PROTECTION_HOTENDS to enable this feature for all hotends. *
  * Uncomment THERMAL_PROTECTION_BED to enable this feature for the heated bed.  *
+ * Uncomment THERMAL_PROTECTION_COOLER to enable this feature for the cooler.   *
  *                                                                              *
  ********************************************************************************/
 //#define THERMAL_PROTECTION_HOTENDS
@@ -267,17 +311,53 @@
 #define THERMAL_PROTECTION_PERIOD    40     // Seconds
 #define THERMAL_PROTECTION_HYSTERESIS 4     // Degrees Celsius
 
-// Whenever an M104 or M109 increases the target temperature the firmware will wait for the
-// WATCH TEMP PERIOD to expire, and if the temperature hasn't increased by WATCH TEMP INCREASE
-// degrees, the machine is halted, requiring a hard reset. This test restarts with any M104/M109,
-//but only if the current temperature is far enough below the target for a reliable test.
+/**
+ * Whenever an M104 or M109 increases the target temperature the firmware will wait for the
+ * WATCH TEMP PERIOD to expire, and if the temperature hasn't increased by WATCH TEMP INCREASE
+ * degrees, the machine is halted, requiring a hard reset. This test restarts with any M104/M109,
+ * but only if the current temperature is far enough below the target for a reliable test.
+ *
+ * If you get false positives for "Heating failed" increase WATCH TEMP PERIOD and/or decrease WATCH TEMP INCREASE
+ * WATCH TEMP INCREASE should not be below 2.
+ */
 #define WATCH_TEMP_PERIOD  16               // Seconds
 #define WATCH_TEMP_INCREASE 4               // Degrees Celsius
 
+/**
+ * Thermal Protection parameters for the bed are just as above for hotends.
+ */
 //#define THERMAL_PROTECTION_BED
 
 #define THERMAL_PROTECTION_BED_PERIOD    20 // Seconds
 #define THERMAL_PROTECTION_BED_HYSTERESIS 2 // Degrees Celsius
+
+
+//#define THERMAL_PROTECTION_COOLER
+
+#define THERMAL_PROTECTION_COOLER_PERIOD    30 // Seconds
+#define THERMAL_PROTECTION_COOLER_HYSTERESIS 3 // Degree Celsius
+
+// Using M141 to set cooling temperature the firmware will wait for the WATCH_COOLER_TEMP_PERIOD 
+// to expire, and if the temperature hasn't lowered by WATCH_TEMP_DECREASE degrees, 
+// the machine is halted, requiring a hard reset. This test restarts with any M141, 
+// but only if the current remperature is far enough exceeding the target for a reliable test
+// Enable this feature by uncomment THERMAL_PROTECTION_COOLER_WATCHDOG
+
+//#define THERMAL_PROTECTION_COOLER_WATCHDOG
+#define WATCH_TEMP_COOLER_PERIOD 60          // Seconds
+#define WATCH_TEMP_COOLER_DECREASE 1         // Degree Celsius
+
+/**
+ * Whenever an M140 or M190 increases the target temperature the firmware will wait for the
+ * WATCH BED TEMP PERIOD to expire, and if the temperature hasn't increased by WATCH BED TEMP INCREASE
+ * degrees, the machine is halted, requiring a hard reset. This test restarts with any M140/M190,
+ * but only if the current temperature is far enough below the target for a reliable test.
+ *
+ * If you get too many "Heating failed" errors, increase WATCH BED TEMP PERIOD and/or decrease
+ * WATCH BED TEMP INCREASE. (WATCH BED TEMP INCREASE should not be below 2.)
+ */
+#define WATCH_BED_TEMP_PERIOD  60           // Seconds
+#define WATCH_BED_TEMP_INCREASE 2           // Degrees Celsius
 /********************************************************************************/
 
 
@@ -562,9 +642,21 @@
  *****************************************************************************************/
 //#define ADVANCE
 
-#define EXTRUDER_ADVANCE_K .0
+#define EXTRUDER_ADVANCE_K 0.0
 #define D_FILAMENT 1.75
-#define STEPS_PER_CUBIC_MM_E 0.85
+/*****************************************************************************************/
+
+
+/*****************************************************************************************
+ ****************** Extruder Advance Linear Pressure Control *****************************
+ *****************************************************************************************
+ *                                                                                       *
+ * Assumption: advance = k * (delta velocity)                                            *
+ * K=0 means advance disabled. A good value for a gregs wade extruder will be around K=75*
+ *                                                                                       *
+ *****************************************************************************************/
+//#define ADVANCE_LPC
+#define ADVANCE_LPC_K 75
 /*****************************************************************************************/
 
 
@@ -574,18 +666,35 @@
  *                                                                        *
  * Add support for filament exchange support M600                         *
  *                                                                        *
- * Uncomment FILAMENTCHANGEENABLE to enable this feature                  *
+ * Uncomment FILAMENT CHANGE FEATURE to enable this feature               *
  * Requires display                                                       *
  *                                                                        *
  **************************************************************************/
-//#define FILAMENTCHANGEENABLE
-
-#define FILAMENTCHANGE_XPOS 3
-#define FILAMENTCHANGE_YPOS 3
-#define FILAMENTCHANGE_ZADD 10
-#define FILAMENTCHANGE_FIRSTRETRACT -2
-#define FILAMENTCHANGE_FINALRETRACT -100
-#define FILAMENTCHANGE_PRINTEROFF 5     // Minutes
+//#define FILAMENT_CHANGE_FEATURE
+
+#define FILAMENT_CHANGE_X_POS 3             // X position of hotend
+#define FILAMENT_CHANGE_Y_POS 3             // Y position of hotend
+#define FILAMENT_CHANGE_Z_ADD 10            // Z addition of hotend (lift)
+#define FILAMENT_CHANGE_XY_FEEDRATE 100     // X and Y axes feedrate in mm/s (also used for delta printers Z axis)
+#define FILAMENT_CHANGE_Z_FEEDRATE 5        // Z axis feedrate in mm/s (not used for delta printers)
+#define FILAMENT_CHANGE_RETRACT_LENGTH 2    // Initial retract in mm
+                                            // It is a short retract used immediately after print interrupt before move to filament exchange position
+#define FILAMENT_CHANGE_RETRACT_FEEDRATE 50 // Initial retract feedrate in mm/s
+#define FILAMENT_CHANGE_UNLOAD_LENGTH 100   // Unload filament length from hotend in mm
+                                            // Longer length for bowden printers to unload filament from whole bowden tube,
+                                            // shorter lenght for printers without bowden to unload filament from extruder only,
+                                            // 0 to disable unloading for manual unloading
+#define FILAMENT_CHANGE_UNLOAD_FEEDRATE 100 // Unload filament feedrate in mm/s - filament unloading can be fast
+#define FILAMENT_CHANGE_LOAD_LENGTH 100     // Load filament length over hotend in mm
+                                            // Longer length for bowden printers to fast load filament into whole bowden tube over the hotend,
+                                            // Short or zero length for printers without bowden where loading is not used
+#define FILAMENT_CHANGE_LOAD_FEEDRATE 100   // Load filament feedrate in mm/s - filament loading into the bowden tube can be fast
+#define FILAMENT_CHANGE_EXTRUDE_LENGTH 50   // Extrude filament length in mm after filament is load over the hotend,
+                                            // 0 to disable for manual extrusion
+                                            // Filament can be extruded repeatedly from the filament exchange menu to fill the hotend,
+                                            // or until outcoming filament color is not clear for filament color change
+#define FILAMENT_CHANGE_EXTRUDE_FEEDRATE 5  // Extrude filament feedrate in mm/s - must be slower than load feedrate
+#define FILAMENT_CHANGE_PRINTER_OFF 5       // Minutes
 /**************************************************************************/
 
 
@@ -1012,6 +1121,7 @@
 /**************************************************************************/
 
 
+
 //===========================================================================
 //============================= ADDON FEATURES ==============================
 //===========================================================================
@@ -1029,8 +1139,8 @@
  * Uncomment EEPROM CHITCHAT to enable EEPROM Serial responses.                                                         *
  *                                                                                                                      *
  ************************************************************************************************************************/
-#define EEPROM_SETTINGS
-#define EEPROM_CHITCHAT // Uncomment this to enable EEPROM Serial responses.
+//#define EEPROM_SETTINGS
+//#define EEPROM_CHITCHAT // Uncomment this to enable EEPROM Serial responses.
 //#define DISABLE_M503
 /************************************************************************************************************************/
 
@@ -1068,9 +1178,25 @@
 /*****************************************************************************************/
 
 
-/************************************************************************************************
- ********************************************* LCD **********************************************
- ************************************************************************************************/
+/***********************************************************************
+ *************************** LCD Language ******************************
+ ***********************************************************************
+ *                                                                     *
+ * Here you may choose the language used by MK or MK4due               *
+ * on the LCD menus, the following                                     *
+ *                                                                     *
+ * list of languages are available:                                    *
+ *    en, pl, fr, de, es, ru, it, pt, fi, an, nl, ca, eu               *
+ *    pt-br, bg, kana, kana_utf8, cn                                   *
+ *                                                                     *
+ ***********************************************************************/
+#define LCD_LANGUAGE en
+/***********************************************************************/
+
+
+/***********************************************************************
+ ******************************* LCD ***********************************
+ ***********************************************************************/
 
 //Charset type
 //Choose ONE of these 3 charsets. This has to match your hardware.
@@ -1092,7 +1218,7 @@
 
 //#define INVERT_CLICK_BUTTON           // Option for invert encoder button logic
 //#define INVERT_BACK_BUTTON            // Option for invert back button logic if avaible
-//#define INVERT_ROTARY_SWITCH          // Option for invert rotary encoder
+//#define INVERT_ROTARY_SWITCH          // Option for reverses the encoder direction for navigating LCD menus.
 #define ENCODER_RATE_MULTIPLIER         // If defined, certain menu edit operations automatically multiply the steps when the encoder is moved quickly
 #define ENCODER_10X_STEPS_PER_SEC   75  // If the encoder steps per sec exceeds this value, multiply steps moved x10 to quickly advance the value
 #define ENCODER_100X_STEPS_PER_SEC 160  // If the encoder steps per sec exceeds this value, multiply steps moved x100 to really quickly advance the value

Documentation/Laser/K40_ramps_configs/Configuration_Laser.h

@@ -17,11 +17,6 @@
 // Uncomment the following if your laser firing pin (not the PWM pin) for two pin control requires a HIGH signal to fire rather than a low (eg Red Sail M300 RS 3040)
 /// #define HIGH_TO_FIRE
 
-// Uncomment the following to enable the use of the PWM (the one for the extruder 0) to drive a peltier cell or any PWM driven cooler for the laser
-#define LASER_WATER_COOLING
-#define LASER_WATER_MAXTEMP 25
-
-
 //// The following defines select which G codes tell the laser to fire.  It's OK to uncomment more than one.
 #define LASER_FIRE_G1 10 // fire the laser on a G1 move, extinguish when the move ends
 #define LASER_FIRE_SPINDLE 11 // fire the laser on M3, extinguish on M5
@@ -34,7 +29,7 @@
 #define LASER_RASTER_MM_PER_PULSE 0.2 //Can be overridden by providing an R value in M649 command : M649 S17 B2 D0 R0.1 F4000
 
 //// Uncomment the following if the laser cutter is equipped with a peripheral relay board
-//// to control power to an exhaust fan, water pump, laser power supply, etc.
+//// to control power to an exhaust fan, cooler pump, laser power supply, etc.
 //#define LASER_PERIPHERALS
 //#define LASER_PERIPHERALS_TIMEOUT 30000  // Number of milliseconds to wait for status signal from peripheral control board