MarlinFirmware/Marlin/example_configurations/delta/generic/Configuration_adv.h

#ifndef CONFIGURATION_ADV_H
#define CONFIGURATION_ADV_H

//===========================================================================
//=============================Thermal Settings  ============================
//===========================================================================

#ifdef BED_LIMIT_SWITCHING
  #define BED_HYSTERESIS 2 //only disable heating if T>target+BED_HYSTERESIS and enable heating if T>target-BED_HYSTERESIS
#endif
#define BED_CHECK_INTERVAL 5000 //ms between checks in bang-bang control

//// Heating sanity check:
// This waits for the watchperiod in milliseconds whenever an M104 or M109 increases the target temperature
// If the temperature has not increased at the end of that period, the target temperature is set to zero. 
// It can be reset with another M104/M109. This check is also only triggered if the target temperature and the current temperature
//  differ by at least 2x WATCH_TEMP_INCREASE
//#define WATCH_TEMP_PERIOD 40000 //40 seconds
//#define WATCH_TEMP_INCREASE 10  //Heat up at least 10 degree in 20 seconds

#ifdef PIDTEMP
  // this adds an experimental additional term to the heatingpower, proportional to the extrusion speed.
  // if Kc is choosen well, the additional required power due to increased melting should be compensated.
  #define PID_ADD_EXTRUSION_RATE  
  #ifdef PID_ADD_EXTRUSION_RATE
    #define  DEFAULT_Kc (1) //heatingpower=Kc*(e_speed)
  #endif
#endif


//automatic temperature: The hot end target temperature is calculated by all the buffered lines of gcode.
//The maximum buffered steps/sec of the extruder motor are called "se".
//You enter the autotemp mode by a M109 S<mintemp> T<maxtemp> F<factor>
// the target temperature is set to mintemp+factor*se[steps/sec] and limited by mintemp and maxtemp
// you exit the value by any M109 without F*
// Also, if the temperature is set to a value <mintemp, it is not changed by autotemp.
// on an ultimaker, some initial testing worked with M109 S215 B260 F1 in the start.gcode
#define AUTOTEMP
#ifdef AUTOTEMP
  #define AUTOTEMP_OLDWEIGHT 0.98
#endif

//Show Temperature ADC value
//The M105 command return, besides traditional information, the ADC value read from temperature sensors.
//#define SHOW_TEMP_ADC_VALUES

//  extruder run-out prevention. 
//if the machine is idle, and the temperature over MINTEMP, every couple of SECONDS some filament is extruded
//#define EXTRUDER_RUNOUT_PREVENT  
#define EXTRUDER_RUNOUT_MINTEMP 190  
#define EXTRUDER_RUNOUT_SECONDS 30.
#define EXTRUDER_RUNOUT_ESTEPS 14. //mm filament
#define EXTRUDER_RUNOUT_SPEED 1500.  //extrusion speed
#define EXTRUDER_RUNOUT_EXTRUDE 100

//These 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"
#define TEMP_SENSOR_AD595_OFFSET 0.0
#define TEMP_SENSOR_AD595_GAIN   1.0

//This is for controlling a fan to cool down the stepper drivers
//it will turn on when any driver is enabled
//and turn off after the set amount of seconds from last driver being disabled again
#define CONTROLLERFAN_PIN -1 //Pin used for the fan to cool controller (-1 to disable)
#define CONTROLLERFAN_SECS 60 //How many seconds, after all motors were disabled, the fan should run
#define CONTROLLERFAN_SPEED 255  // == full speed

// When first starting the main fan, run it at full speed for the
// given number of milliseconds.  This gets the fan spinning reliably
// before setting a PWM value. (Does not work with software PWM for fan on Sanguinololu)
//#define FAN_KICKSTART_TIME 100

// Extruder cooling fans
// Configure fan pin outputs to automatically turn on/off when the associated
// extruder temperature is above/below EXTRUDER_AUTO_FAN_TEMPERATURE.
// Multiple extruders can be assigned to the same pin in which case 
// the fan will turn on when any selected extruder is above the threshold.
#define EXTRUDER_0_AUTO_FAN_PIN   -1
#define EXTRUDER_1_AUTO_FAN_PIN   -1
#define EXTRUDER_2_AUTO_FAN_PIN   -1
#define EXTRUDER_3_AUTO_FAN_PIN   -1
#define EXTRUDER_AUTO_FAN_TEMPERATURE 50
#define EXTRUDER_AUTO_FAN_SPEED   255  // == full speed


//===========================================================================
//=============================Mechanical Settings===========================
//===========================================================================

#define ENDSTOPS_ONLY_FOR_HOMING // If defined the endstops will only be used for homing

//#define Z_LATE_ENABLE // Enable Z the last moment. Needed if your Z driver overheats.

// A single Z stepper driver is usually used to drive 2 stepper motors.
// Uncomment this define to utilize a separate stepper driver for each Z axis motor.
// Only a few motherboards support this, like RAMPS, which have dual extruder support (the 2nd, often unused, extruder driver is used
// to control the 2nd Z axis stepper motor). The pins are currently only defined for a RAMPS motherboards.
// On a RAMPS (or other 5 driver) motherboard, using this feature will limit you to using 1 extruder.
//#define Z_DUAL_STEPPER_DRIVERS

// Same again but for Y Axis.
//#define Y_DUAL_STEPPER_DRIVERS

// Define if the two Y drives need to rotate in opposite directions
#define INVERT_Y2_VS_Y_DIR true

// Enable this for dual x-carriage printers. 
// A dual x-carriage design has the advantage that the inactive extruder can be parked which
// prevents hot-end ooze contaminating the print. It also reduces the weight of each x-carriage
// allowing faster printing speeds.
//#define DUAL_X_CARRIAGE
#ifdef DUAL_X_CARRIAGE
// Configuration for second X-carriage
// Note: the first x-carriage is defined as the x-carriage which homes to the minimum endstop;
// the second x-carriage always homes to the maximum endstop.
#define X2_MIN_POS 80     // set minimum to ensure second x-carriage doesn't hit the parked first X-carriage
#define X2_MAX_POS 353    // set maximum to the distance between toolheads when both heads are homed 
#define X2_HOME_DIR 1     // the second X-carriage always homes to the maximum endstop position
#define X2_HOME_POS X2_MAX_POS // default home position is the maximum carriage position 
    // However: In this mode the EXTRUDER_OFFSET_X value for the second extruder provides a software 
    // override for X2_HOME_POS. This also allow recalibration of the distance between the two endstops
    // without modifying the firmware (through the "M218 T1 X???" command).
    // Remember: you should set the second extruder x-offset to 0 in your slicer.

// Pins for second x-carriage stepper driver (defined here to avoid further complicating pins.h)
#define X2_ENABLE_PIN 29
#define X2_STEP_PIN 25
#define X2_DIR_PIN 23

// There are a few selectable movement modes for dual x-carriages using M605 S<mode>
//    Mode 0: Full control. The slicer has full control over both x-carriages and can achieve optimal travel results
//                           as long as it supports dual x-carriages. (M605 S0)
//    Mode 1: Auto-park mode. The firmware will automatically park and unpark the x-carriages on tool changes so
//                           that additional slicer support is not required. (M605 S1)
//    Mode 2: Duplication mode. The firmware will transparently make the second x-carriage and extruder copy all  
//                           actions of the first x-carriage. This allows the printer to print 2 arbitrary items at
//                           once. (2nd extruder x offset and temp offset are set using: M605 S2 [Xnnn] [Rmmm])

// This is the default power-up mode which can be later using M605. 
#define DEFAULT_DUAL_X_CARRIAGE_MODE 0 

// Default settings in "Auto-park Mode" 
#define TOOLCHANGE_PARK_ZLIFT   0.2      // the distance to raise Z axis when parking an extruder
#define TOOLCHANGE_UNPARK_ZLIFT 1        // the distance to raise Z axis when unparking an extruder

// Default x offset in duplication mode (typically set to half print bed width)
#define DEFAULT_DUPLICATION_X_OFFSET 100

#endif //DUAL_X_CARRIAGE
    
//homing hits the endstop, then retracts by this distance, before it tries to slowly bump again:
#define X_HOME_RETRACT_MM 5 
#define Y_HOME_RETRACT_MM 5 
#define Z_HOME_RETRACT_MM 5 // deltas need the same for all three axis
#define HOMING_BUMP_DIVISOR {10, 10, 20}  // Re-Bump Speed Divisor (Divides the Homing Feedrate)

//#define QUICK_HOME  //if this is defined, if both x and y are to be homed, a diagonal move will be performed initially.

#define AXIS_RELATIVE_MODES {false, false, false, false}

#define MAX_STEP_FREQUENCY 40000 // Max step frequency for Ultimaker (5000 pps / half step)

//By default pololu step drivers require an active high signal. However, some high power drivers require an active low signal as step.
#define INVERT_X_STEP_PIN false
#define INVERT_Y_STEP_PIN false
#define INVERT_Z_STEP_PIN false
#define INVERT_E_STEP_PIN false

// Default stepper release if idle. Set to 0 to deactivate.
#define DEFAULT_STEPPER_DEACTIVE_TIME 60

#define DEFAULT_MINIMUMFEEDRATE       0.0     // minimum feedrate
#define DEFAULT_MINTRAVELFEEDRATE     0.0

// Feedrates for manual moves along X, Y, Z, E from panel
#ifdef ULTIPANEL
  #define MANUAL_FEEDRATE {50*60, 50*60, 4*60, 60} // Feedrates for manual moves along X, Y, Z, E from panel
#endif

// minimum time in microseconds that a movement needs to take if the buffer is emptied.
#define DEFAULT_MINSEGMENTTIME        20000

// If defined the movements slow down when the look ahead buffer is only half full
// (don't use SLOWDOWN with DELTA because DELTA generates hundreds of segments per second)
//#define SLOWDOWN

// Frequency limit
// See nophead's blog for more info
// Not working O
//#define XY_FREQUENCY_LIMIT  15

// Minimum planner junction speed. Sets the default minimum speed the planner plans for at the end
// of the buffer and all stops. This should not be much greater than zero and should only be changed
// if unwanted behavior is observed on a user's machine when running at very slow speeds.
#define MINIMUM_PLANNER_SPEED 0.05// (mm/sec)

// Microstep setting (Only functional when stepper driver microstep pins are connected to MCU.
#define MICROSTEP_MODES {16,16,16,16,16} // [1,2,4,8,16]

// Motor Current setting (Only functional when motor driver current ref pins are connected to a digital trimpot on supported boards)
#define DIGIPOT_MOTOR_CURRENT {135,135,135,135,135} // Values 0-255 (RAMBO 135 = ~0.75A, 185 = ~1A)

// uncomment to enable an I2C based DIGIPOT like on the Azteeg X3 Pro
//#define DIGIPOT_I2C
// Number of channels available for I2C digipot, For Azteeg X3 Pro we have 8
#define DIGIPOT_I2C_NUM_CHANNELS 8
// actual motor currents in Amps, need as many here as DIGIPOT_I2C_NUM_CHANNELS
#define DIGIPOT_I2C_MOTOR_CURRENTS {1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0}

//===========================================================================
//=============================Additional Features===========================
//===========================================================================

#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 exceed this value, multiple the steps moved by ten to quickly advance the value
#define ENCODER_100X_STEPS_PER_SEC 160  // If the encoder steps per sec exceed this value, multiple the steps moved by 100 to really quickly advance the value
//#define ENCODER_RATE_MULTIPLIER_DEBUG  // If defined, output the encoder steps per second value

//#define CHDK 4        //Pin for triggering CHDK to take a picture see how to use it here http://captain-slow.dk/2014/03/09/3d-printing-timelapses/
#define CHDK_DELAY 50 //How long in ms the pin should stay HIGH before going LOW again

#define SD_FINISHED_STEPPERRELEASE true  //if sd support and the file is finished: disable steppers?
#define SD_FINISHED_RELEASECOMMAND "M84 X Y Z E" // You might want to keep the z enabled so your bed stays in place.

#define SDCARD_RATHERRECENTFIRST  //reverse file order of sd card menu display. Its sorted practically after the filesystem block order. 
// if a file is deleted, it frees a block. hence, the order is not purely cronological. To still have auto0.g accessible, there is again the option to do that.
// using:
//#define MENU_ADDAUTOSTART

// Show a progress bar on the LCD when printing from SD
//#define LCD_PROGRESS_BAR

#ifdef LCD_PROGRESS_BAR
  // Amount of time (ms) to show the bar
  #define PROGRESS_BAR_BAR_TIME 2000
  // Amount of time (ms) to show the status message
  #define PROGRESS_BAR_MSG_TIME 2000
  // Amount of time (ms) to retain the status message (0=forever)
  #define PROGRESS_MSG_EXPIRE   0
  // Enable this to show messages for MSG_TIME then hide them
  //#define PROGRESS_MSG_ONCE
#endif

// The hardware watchdog should reset the Microcontroller disabling all outputs, in case the firmware gets stuck and doesn't do temperature regulation.
//#define USE_WATCHDOG

#ifdef USE_WATCHDOG
// If you have a watchdog reboot in an ArduinoMega2560 then the device will hang forever, as a watchdog reset will leave the watchdog on.
// The "WATCHDOG_RESET_MANUAL" goes around this by not using the hardware reset.
//  However, THIS FEATURE IS UNSAFE!, as it will only work if interrupts are disabled. And the code could hang in an interrupt routine with interrupts disabled.
//#define WATCHDOG_RESET_MANUAL
#endif

// Enable the option to stop SD printing when hitting and endstops, needs to be enabled from the LCD menu when this option is enabled.
//#define ABORT_ON_ENDSTOP_HIT_FEATURE_ENABLED

// Babystepping enables the user to control the axis in tiny amounts, independently from the normal printing process
// it can e.g. be used to change z-positions in the print startup phase in realtime
// does not respect endstops!
//#define BABYSTEPPING
#ifdef BABYSTEPPING
  #define BABYSTEP_XY  //not only z, but also XY in the menu. more clutter, more functions
  #define BABYSTEP_INVERT_Z false  //true for inverse movements in Z
  #define BABYSTEP_Z_MULTIPLICATOR 2 //faster z movements
#endif

// extruder advance constant (s2/mm3)
//
// advance (steps) = STEPS_PER_CUBIC_MM_E * EXTRUDER_ADVANCE_K * cubic mm per second ^ 2
//
// hooke's law says:		force = k * distance
// Bernoulli's principle says:	v ^ 2 / 2 + g . h + pressure / density = constant
// so: v ^ 2 is proportional to number of steps we advance the extruder
//#define ADVANCE

#ifdef ADVANCE
  #define EXTRUDER_ADVANCE_K .0
  #define D_FILAMENT 2.85
  #define STEPS_MM_E 836
#endif // ADVANCE

// Arc interpretation settings:
#define MM_PER_ARC_SEGMENT 1
#define N_ARC_CORRECTION 25

const unsigned int dropsegments=5; //everything with less than this number of steps will be ignored as move and joined with the next movement

// If you are using a RAMPS board or cheap E-bay purchased boards that do not detect when an SD card is inserted
// You can get round this by connecting a push button or single throw switch to the pin defined as SDCARDCARDDETECT 
// in the pins.h file.  When using a push button pulling the pin to ground this will need inverted.  This setting should
// be commented out otherwise
#define SDCARDDETECTINVERTED 

// Control heater 0 and heater 1 in parallel.
//#define HEATERS_PARALLEL

//===========================================================================
//=============================Buffers           ============================
//===========================================================================

// The number of linear motions that can be in the plan at any give time.  
// THE BLOCK_BUFFER_SIZE NEEDS TO BE A POWER OF 2, i.g. 8,16,32 because shifts and ors are used to do the ringbuffering.
#if defined SDSUPPORT
  #define BLOCK_BUFFER_SIZE 16   // SD,LCD,Buttons take more memory, block buffer needs to be smaller
#else
  #define BLOCK_BUFFER_SIZE 16 // maximize block buffer
#endif


//The ASCII buffer for recieving from the serial:
#define MAX_CMD_SIZE 96
#define BUFSIZE 4


// Firmware based and LCD controled retract
// M207 and M208 can be used to define parameters for the retraction. 
// The retraction can be called by the slicer using G10 and G11
// until then, intended retractions can be detected by moves that only extrude and the direction. 
// the moves are than replaced by the firmware controlled ones.

// #define FWRETRACT  //ONLY PARTIALLY TESTED
#ifdef FWRETRACT
  #define MIN_RETRACT 0.1                //minimum extruded mm to accept a automatic gcode retraction attempt
  #define RETRACT_LENGTH 3               //default retract length (positive mm)
  #define RETRACT_LENGTH_SWAP 13         //default swap retract length (positive mm), for extruder change
  #define RETRACT_FEEDRATE 45            //default feedrate for retracting (mm/s)
  #define RETRACT_ZLIFT 0                //default retract Z-lift
  #define RETRACT_RECOVER_LENGTH 0       //default additional recover length (mm, added to retract length when recovering)
  #define RETRACT_RECOVER_LENGTH_SWAP 0  //default additional swap recover length (mm, added to retract length when recovering from extruder change)
  #define RETRACT_RECOVER_FEEDRATE 8     //default feedrate for recovering from retraction (mm/s)
#endif

// Add support for experimental filament exchange support M600; requires display
#ifdef ULTIPANEL
  //#define FILAMENTCHANGEENABLE
  #ifdef FILAMENTCHANGEENABLE
    #define FILAMENTCHANGE_XPOS 3
    #define FILAMENTCHANGE_YPOS 3
    #define FILAMENTCHANGE_ZADD 10
    #define FILAMENTCHANGE_FIRSTRETRACT -2
    #define FILAMENTCHANGE_FINALRETRACT -100
  #endif
#endif

#endif //CONFIGURATION_ADV_H