#define TEMP_HYSTERESIS 3 // (degC) range of +/- temperatures considered "close" to the target one This feature is meant to prevent a typo or glitch in a G1 command from extruding some enormous amount of filament. #endif, #define HOTEND2_PULLUP_RESISTOR_OHMS 4700 // Pullup resistor, #define HOTEND2_RESISTANCE_25C_OHMS 100000 // Resistance at 25C, #define HOTEND2_BETA 3950 // Beta value #define Z_MIN_POS 0 #define FTM_MIN_SHAPE_FREQ 10 // Minimum shaping frequency. #if ENABLED(MAX_SOFTWARE_ENDSTOPS), #if EITHER(MIN_SOFTWARE_ENDSTOPS, MAX_SOFTWARE_ENDSTOPS). #endif, #define THERMAL_PROTECTION_CHAMBER_PERIOD 20 // Seconds, #define THERMAL_PROTECTION_CHAMBER_HYSTERESIS 2 // Degrees Celsius, #define WATCH_CHAMBER_TEMP_PERIOD 60 // Seconds, #define WATCH_CHAMBER_TEMP_INCREASE 2 // Degrees Celsius "homing_feedrate_xy"homing_feedrate_xyxyhoming_feedrate_zz 6 . Inductive probes need space to keep from triggering early. If you dont know what this is leave it. A delay can also be added to allow noise and vibration to settle. The range of your filament width. Jerk sets the floor for accelerated moves. The homing function, G28 is homing in the -'ve direction until it hits an endstop. For 1.75mm youll use a range more like 1.60 to 1.90. Marlin includes support for several controllers. Err: MINTEMP: This error means your thermistor has disconnected or become an open circuit. All forms of bed control obey this (PID, bang-bang, bang-bang with hysteresis). See Configuration_adv.h for the full set of sub-options. Use M871 to set values manually. Requires LCD display and NOZZLE_PARK_FEATURE. #define DISABLE_INACTIVE_Z true #define SDCARD_RATHERRECENTFIRST #define FTM_SHAPING_DEFAULT_Y_FREQ 37.0f // (Hz) Default peak frequency used by input shapers. Also option requires: BABYSTEPPING, BABYSTEP_ZPROBE_OFFSET, Z_SAFE_HOMING, and a minimum Z_HOMING_HEIGHT of 10. If SOFT_PWM_SCALE is set to a value higher than 0, dithering can be used to mitigate the associated resolution loss. These are the most crucial settings for your printer, as they determine how accurately the steppers will position the axes. #define TEMP_BED_RESIDENCY_TIME 10 // (seconds) #endif. * M5: 50 = Clockwise, 51 = Counter-Clockwise The SLED_DOCKING_OFFSET specifies the extra distance the X axis must travel to pickup the sled. #endif, #define SD_FIRMWARE_UPDATE_EEPROM_ADDR 0x1FF, #define SD_FIRMWARE_UPDATE_ACTIVE_VALUE 0xF0, #define SD_FIRMWARE_UPDATE_INACTIVE_VALUE 0xFF If CLOCKWISE normally moves RIGHT this makes it go LEFT. Currently handles M108, M112, and M410. After an endstop is triggered during homing, the printerhead backs off by the set HOME_BUMP_MM distance then homes again at a slower speed. // This short retract is done immediately, before parking the nozzle. In my snapshot, the offending line was 1953 in Marlin_main.cpp. . Its color is set using I2C messages. The HOST_KEEPALIVE feature provides another way to keep the host alive. Note that probe XY offsets and movement limits may constrain the probeable area of the bed. Leave them undefined for automatic settings. * speeds with much more exact timing for improved print fidelity. From there you can click to start a new print, or you can navigate elsewhere. This option overrides the default number of encoder pulses needed to produce one step. how do i add the file? Eject filament will do a simple retraction of the filament out of the hotend without ramming. A Switching Nozzle is a carriage with 2 nozzles. // FIND YOUR OWN: "M303 E-1 C8 S90" to run autotune on the bed at 90 degreesC for 8 cycles. By default, the magnet is assumed to be on the left and activated by a home. LCD_BED_LEVELING adds a Level Bed menu to the LCD that starts a step-by-step guided leveling procedure that requires no probe. #endif, #define HOMING_FEEDRATE_XY (50*60) Enable this option to set fan/laser #define FANMUX2_PIN -1, //#define CASE_LIGHT_PIN 4 // Override the default pin if needed, #define INVERT_CASE_LIGHT false // Set true if Case Light is ON when pin is LOW, #define CASE_LIGHT_DEFAULT_ON true // Set default power-up state on, #define CASE_LIGHT_DEFAULT_BRIGHTNESS 105 // Set default power-up brightness (0-255, requires PWM pin), //#define CASE_LIGHT_MAX_PWM 128 // Limit pwm, //#define CASE_LIGHT_MENU // Add Case Light options to the LCD menu. Alex's Config . Enable support for an RGB(W) LED connected to 5 V digital pins, or an RGB(W) Strip connected to MOSFETs controlled by digital pins. With this disabled, the printer will move to Z0 for the first probe point. #define Y_MIN_ENDSTOP_HIT_STATE HIGH For a more detailed explanation of the process see G76_M871.cpp and Configuration_adv.h. This value raises Z to the specified height above the bed before homing X or Y. Printer style, such as Cartesian, Delta, CoreXY, or SCARA. Fast and accurate sensors ensure that the temperature will be well controlled, to keep plastic flowing smoothly and to prevent mishaps. Issues related to multi-axis support can be reported to DerAndere1 here. Adaptive Step Smoothing increases the resolution of multi-axis moves, particularly at step frequencies below 1kHz (for AVR) or 10kHz (for ARM), where aliasing between axes in multi-axis moves causes audible vibration and surface artifacts. This option hides the SD card from the host PC. Enable for Spindle and Laser control. * header (as with some add-on laser kits). 2021-10-08 Dan. These settings are used to override the home position. I have altered the Homing Feedrate settings and they are fine. #define HOST_KEEPALIVE_FEATURE // Disable this if your host doesn't like keepalive messages Pull requests 70. Bad serial connections can miss a received command by sending an ok, and some hosts will abort after 30 seconds. If you want to upgrade from an earlier version of Marlin, add this line to your old configuration file. Above the given Z height, leveling compensation will no longer be applied. Some host programs and slicers may use this identifier to differentiate between specific machines on your network. #define Z_HOME_DIR -1, #define X_BED_SIZE 200 This feature can be used to talk to slave devices on the i2c bus, passing data back to the host. The default values are based on a E3D V6 hotend and the nozzle to extruder gear distance of a Pra MK3 extruder, so if required you have to modify those to your extruder/hotend setup accordingly. Z-feedrate and a hint to the IE-Builders: Set the servo sub-settings above according to your particular extruders setup instructions. Setting this incorrectly will lead to unpredictable results. #define HEATER_4_MAXTEMP 275 #define TEMP_WINDOW 1 // (degC) Window around target to start the residency timer x degC early. Vendors are strongly discouraged from using DISABLE_M503. The MMU2 LCD menu allows you to load filament to the nozzle. #define GRID_MAX_POINTS_X 10 // Don't use more than 15 points per axis, implementation limited. Using boards.h as a reference, replace BOARD_RAMPS_14_EFB with your boards ID. Support for swappable and dockable toolheads, such as the E3D Tool Changer. This can be pretty fast. This simplifies all coordinate transformations, leveling, etc., and may allow for slightly faster printing. Some of these options may result in the display lagging behind controller events, as there is a trade-off between reliable printing performance versus fast display updates. PID control uses higher frequency PWM and (in most cases) is superior for maintaining a stable temperature. If the temperature difference between sensors exceeds MAX_REDUNDANT_TEMP_SENSOR_DIFF Marlin will abort the print and disable the heater. #define AXIS_RELATIVE_MODES { false, false, false, false }, #define INVERT_X_STEP_PIN false * M5 I clears inline mode and set power to 0, M5 sets the power output to 0 but leaves inline mode on. The photo can be triggered by a digital pin or a physical movement. Cooling fans are needed on 3D printers to keep components cool and prevent failure. #define TEMP_SENSOR_CHAMBER 0, // Dummy thermistor constant temperature readings, for use with 998 and 999, #define DUMMY_THERMISTOR_998_VALUE 25 Set to 0 to deactive feature. Use the optimizations here to improve printing performance, which can be adversely affected by graphical display drawing, especially when doing several short moves, and when printing on DELTA and SCARA machines. #define E4_AUTO_FAN_PIN -1 * Marlin normally applies M106/M107 fan speeds at a time "soon after" processing #define THERMAL_PROTECTION_BED // Enable thermal protection for the heated bed When using a 32-bit board you just have to define the name of the serial port which will be used for communication with the MMU2. Disable PIDTEMP to run extruders in bang-bang mode. Example: To have leveling fade out over the first 10mm of layer printing use M420 Z10. If no match is found, use a profile for a similar sensor of the same brand, or try 1 the generic profile. #define BED_MINTEMP 5, #define HEATER_0_MAXTEMP 285 This enables you to test the reliability of your probe. The E motor also reverses direction for the second filament. If the second motor needs its own endstop * set X_DUAL_ENDSTOPS. Should be slower than load feedrate. #define FILAMENT_CHANGE_FAST_LOAD_LENGTH 0 // (mm) Load length of filament, from extruder gear to nozzle. When the machine is idle and the temperature over a given value, Marlin can extrude a short length of filament every couple of seconds. Setting HOMING_FEEDRATE_MM_M to higher values A value of 3000 means that an axis may accelerate by 100mm/s within 1/30th of a second, or up to 3000mm/s (180000mm/m) in a full second. #define DUMMY_THERMISTOR_999_VALUE 100, #define MAX_REDUNDANT_TEMP_SENSOR_DIFF 10. #define Y_MIN_POS 0 G3D_PANEL|Gadgets3D G3D LCD/SD Controller. MIXING_EXTRUDER enables M163 - set mix factor, M164 - save mix, and M165 - set mix. // Useful for a sensor at the end of a feed tube. M115 tells Marlin to send the current temperature to the host at regular intervals, instead of requiring the host software to send M105 repeatedly. #define BABYSTEP_INVERT_Z false // Change if Z babysteps should go the other way. NOTE: Support for L6470 was removed from Marlin in version 2.1, but may be restored in a future version if there is some demand. #define Z_CLEARANCE_BETWEEN_PROBES 5 // Z Clearance between probe points This option adds a scaling factor that must be tuned for your setup and material. #define TEMP_SENSOR_AD595_GAIN 1.0 For Active High use 1 or HIGH. If pins are PWM capable (e.g., 4, 5, 6, 11) then a range of luminance values can be set from 0 to 255. Enable this option to get debug output related to the printer to MMU2 communication. Choose your preferred language for the LCD controller here. #define BUTTON1_HIT_STATE LOW // State of the triggered button. However, the MANUAL_[XYZ]_HOME_POS options can be used to override these, if needed. 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