Merge pull request #409 from buildrob202/Marlin_v1
Implement automatic cold-end/extruder motor fan control based on nozzle temperature
This commit is contained in:
commit
b2eeebd9c3
6 changed files with 363 additions and 285 deletions
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@ -51,6 +51,9 @@
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#define MOTHERBOARD 7
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#endif
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// This defines the number of extruders
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#define EXTRUDERS 1
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//// The following define selects which power supply you have. Please choose the one that matches your setup
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// 1 = ATX
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// 2 = X-Box 360 203Watts (the blue wire connected to PS_ON and the red wire to VCC)
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@ -63,21 +63,31 @@
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//This is for controlling a fan to cool down the stepper drivers
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//it will turn on when any driver is enabled
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//and turn off after the set amount of seconds from last driver being disabled again
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//#define CONTROLLERFAN_PIN 23 //Pin used for the fan to cool controller, comment out to disable this function
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#define CONTROLLERFAN_SEC 60 //How many seconds, after all motors were disabled, the fan should run
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#define CONTROLLERFAN_PIN -1 //Pin used for the fan to cool controller (-1 to disable)
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#define CONTROLLERFAN_SECS 60 //How many seconds, after all motors were disabled, the fan should run
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#define CONTROLLERFAN_SPEED 255 // == full speed
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// When first starting the main fan, run it at full speed for the
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// given number of milliseconds. This gets the fan spinning reliably
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// before setting a PWM value. (Does not work with software PWM for fan on Sanguinololu)
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//#define FAN_KICKSTART_TIME 100
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// Extruder cooling fans
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// Configure fan pin outputs to automatically turn on/off when the associated
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// extruder temperature is above/below EXTRUDER_AUTO_FAN_TEMPERATURE.
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// Multiple extruders can be assigned to the same pin in which case
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// the fan will turn on when any selected extruder is above the threshold.
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#define EXTRUDER_0_AUTO_FAN_PIN -1
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#define EXTRUDER_1_AUTO_FAN_PIN -1
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#define EXTRUDER_2_AUTO_FAN_PIN -1
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#define EXTRUDER_AUTO_FAN_TEMPERATURE 50
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#define EXTRUDER_AUTO_FAN_SPEED 255 // == full speed
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//===========================================================================
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//=============================Mechanical Settings===========================
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//===========================================================================
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// This defines the number of extruders
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#define EXTRUDERS 1
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#define ENDSTOPS_ONLY_FOR_HOMING // If defined the endstops will only be used for homing
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@ -319,7 +319,7 @@ void setup_photpin()
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void setup_powerhold()
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{
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#ifdef SUICIDE_PIN
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#if (SUICIDE_PIN> -1)
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#if (SUICIDE_PIN> 0)
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SET_OUTPUT(SUICIDE_PIN);
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WRITE(SUICIDE_PIN, HIGH);
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#endif
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@ -411,13 +411,9 @@ void setup()
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lcd_init();
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#ifdef CONTROLLERFAN_PIN
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#if CONTROLLERFAN_PIN > 0
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SET_OUTPUT(CONTROLLERFAN_PIN); //Set pin used for driver cooling fan
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#endif
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#ifdef EXTRUDERFAN_PIN
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SET_OUTPUT(EXTRUDERFAN_PIN); //Set pin used for extruder cooling fan
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#endif
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}
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@ -1040,6 +1036,10 @@ void process_commands()
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break;
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}
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}
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#if FAN_PIN > 0
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if (pin_number == FAN_PIN)
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fanSpeed = pin_status;
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#endif
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if (pin_number > -1)
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{
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pinMode(pin_number, OUTPUT);
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@ -2064,7 +2064,12 @@ void prepare_arc_move(char isclockwise) {
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previous_millis_cmd = millis();
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}
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#ifdef CONTROLLERFAN_PIN
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#if CONTROLLERFAN_PIN > 0
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#if CONTROLLERFAN_PIN == FAN_PIN
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#error "You cannot set CONTROLLERFAN_PIN equal to FAN_PIN"
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#endif
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unsigned long lastMotor = 0; //Save the time for when a motor was turned on last
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unsigned long lastMotorCheck = 0;
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@ -2086,34 +2091,16 @@ void controllerFan()
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lastMotor = millis(); //... set time to NOW so the fan will turn on
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}
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if ((millis() - lastMotor) >= (CONTROLLERFAN_SEC*1000UL) || lastMotor == 0) //If the last time any driver was enabled, is longer since than CONTROLLERSEC...
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if ((millis() - lastMotor) >= (CONTROLLERFAN_SECS*1000UL) || lastMotor == 0) //If the last time any driver was enabled, is longer since than CONTROLLERSEC...
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{
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WRITE(CONTROLLERFAN_PIN, LOW); //... turn the fan off
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digitalWrite(CONTROLLERFAN_PIN, 0);
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analogWrite(CONTROLLERFAN_PIN, 0);
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}
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else
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{
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WRITE(CONTROLLERFAN_PIN, HIGH); //... turn the fan on
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}
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}
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}
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#endif
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#ifdef EXTRUDERFAN_PIN
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unsigned long lastExtruderCheck = 0;
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void extruderFan()
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{
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if ((millis() - lastExtruderCheck) >= 2500) //Not a time critical function, so we only check every 2500ms
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{
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lastExtruderCheck = millis();
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if (degHotend(active_extruder) < EXTRUDERFAN_DEC)
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{
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WRITE(EXTRUDERFAN_PIN, LOW); //... turn the fan off
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}
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else
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{
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WRITE(EXTRUDERFAN_PIN, HIGH); //... turn the fan on
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// allows digital or PWM fan output to be used (see M42 handling)
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digitalWrite(CONTROLLERFAN_PIN, CONTROLLERFAN_SPEED);
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analogWrite(CONTROLLERFAN_PIN, CONTROLLERFAN_SPEED);
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}
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}
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}
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@ -2137,11 +2124,11 @@ void manage_inactivity()
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}
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}
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}
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#if( KILL_PIN>-1 )
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#if KILL_PIN > 0
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if( 0 == READ(KILL_PIN) )
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kill();
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#endif
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#ifdef CONTROLLERFAN_PIN
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#if CONTROLLERFAN_PIN > 0
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controllerFan(); //Check if fan should be turned on to cool stepper drivers down
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#endif
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#ifdef EXTRUDER_RUNOUT_PREVENT
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@ -879,10 +879,6 @@ void st_init()
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disable_e2();
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#endif
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#ifdef CONTROLLERFAN_PIN
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SET_OUTPUT(CONTROLLERFAN_PIN); //Set pin used for driver cooling fan
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#endif
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// waveform generation = 0100 = CTC
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TCCR1B &= ~(1<<WGM13);
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TCCR1B |= (1<<WGM12);
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@ -99,8 +99,9 @@ static volatile bool temp_meas_ready = false;
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#ifdef FAN_SOFT_PWM
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static unsigned char soft_pwm_fan;
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#endif
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#if EXTRUDER_0_AUTO_FAN_PIN > 0 || EXTRUDER_1_AUTO_FAN_PIN > 0 || EXTRUDER_2_AUTO_FAN_PIN > 0
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static unsigned long extruder_autofan_last_check;
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#endif
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#if EXTRUDERS > 3
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# error Unsupported number of extruders
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@ -306,6 +307,76 @@ int getHeaterPower(int heater) {
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return soft_pwm[heater];
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}
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#if EXTRUDER_0_AUTO_FAN_PIN > 0 || EXTRUDER_1_AUTO_FAN_PIN > 0 || EXTRUDER_2_AUTO_FAN_PIN > 0
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#if FAN_PIN > 0
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#if EXTRUDER_0_AUTO_FAN_PIN == FAN_PIN
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#error "You cannot set EXTRUDER_0_AUTO_FAN_PIN equal to FAN_PIN"
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#endif
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#if EXTRUDER_1_AUTO_FAN_PIN == FAN_PIN
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#error "You cannot set EXTRUDER_1_AUTO_FAN_PIN equal to FAN_PIN"
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#endif
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#if EXTRUDER_2_AUTO_FAN_PIN == FAN_PIN
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#error "You cannot set EXTRUDER_2_AUTO_FAN_PIN equal to FAN_PIN"
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#endif
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#endif
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void setExtruderAutoFanState(int pin, bool state)
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{
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unsigned char newFanSpeed = (state != 0) ? EXTRUDER_AUTO_FAN_SPEED : 0;
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// this idiom allows both digital and PWM fan outputs (see M42 handling).
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pinMode(pin, OUTPUT);
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digitalWrite(pin, newFanSpeed);
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analogWrite(pin, newFanSpeed);
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}
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void checkExtruderAutoFans()
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{
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uint8_t fanState = 0;
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// which fan pins need to be turned on?
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#if EXTRUDER_0_AUTO_FAN_PIN > 0
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if (current_temperature[0] > EXTRUDER_AUTO_FAN_TEMPERATURE)
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fanState |= 1;
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#endif
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#if EXTRUDER_1_AUTO_FAN_PIN > 0
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if (current_temperature[1] > EXTRUDER_AUTO_FAN_TEMPERATURE)
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{
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if (EXTRUDER_1_AUTO_FAN_PIN == EXTRUDER_0_AUTO_FAN_PIN)
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fanState |= 1;
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else
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fanState |= 2;
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}
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#endif
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#if EXTRUDER_2_AUTO_FAN_PIN > 0
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if (current_temperature[2] > EXTRUDER_AUTO_FAN_TEMPERATURE)
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{
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if (EXTRUDER_2_AUTO_FAN_PIN == EXTRUDER_0_AUTO_FAN_PIN)
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fanState |= 1;
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else if (EXTRUDER_2_AUTO_FAN_PIN == EXTRUDER_1_AUTO_FAN_PIN)
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fanState |= 2;
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else
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fanState |= 4;
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}
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#endif
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// update extruder auto fan states
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#if EXTRUDER_0_AUTO_FAN_PIN > 0
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setExtruderAutoFanState(EXTRUDER_0_AUTO_FAN_PIN, (fanState & 1) != 0);
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#endif
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#if EXTRUDER_1_AUTO_FAN_PIN > 0
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if (EXTRUDER_1_AUTO_FAN_PIN != EXTRUDER_0_AUTO_FAN_PIN)
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setExtruderAutoFanState(EXTRUDER_1_AUTO_FAN_PIN, (fanState & 2) != 0);
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#endif
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#if EXTRUDER_2_AUTO_FAN_PIN > 0
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if (EXTRUDER_2_AUTO_FAN_PIN != EXTRUDER_0_AUTO_FAN_PIN
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&& EXTRUDER_2_AUTO_FAN_PIN != EXTRUDER_1_AUTO_FAN_PIN)
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setExtruderAutoFanState(EXTRUDER_2_AUTO_FAN_PIN, (fanState & 4) != 0);
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#endif
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}
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#endif // any extruder auto fan pins set
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void manage_heater()
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{
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float pid_input;
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@ -399,6 +470,13 @@ void manage_heater()
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} // End extruder for loop
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#if EXTRUDER_0_AUTO_FAN_PIN > 0 || EXTRUDER_1_AUTO_FAN_PIN > 0 || EXTRUDER_2_AUTO_FAN_PIN > 0
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if(millis() - extruder_autofan_last_check > 2500) // only need to check fan state very infrequently
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{
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checkExtruderAutoFans();
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extruder_autofan_last_check = millis();
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}
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#endif
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#ifndef PIDTEMPBED
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if(millis() - previous_millis_bed_heater < BED_CHECK_INTERVAL)
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16
README.md
16
README.md
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@ -1,10 +1,13 @@
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WARNING:
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--------
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THIS IS RELEASE CANDIDATE 2 FOR MARLIN 1.0.0
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==========================
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Marlin 3D Printer Firmware
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==========================
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The configuration is now split in two files
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Configuration.h for the normal settings
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Configuration_adv.h for the advanced settings
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Notes:
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-----
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The configuration is now split in two files:
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Configuration.h for the normal settings
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Configuration_adv.h for the advanced settings
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Gen7T is not supported.
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@ -46,6 +49,7 @@ Features:
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* PID tuning
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* CoreXY kinematics (www.corexy.com/theory.html)
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* Configurable serial port to support connection of wireless adaptors.
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* Automatic operation of extruder/cold-end cooling fans based on nozzle temperature
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The default baudrate is 250000. This baudrate has less jitter and hence errors than the usual 115200 baud, but is less supported by drivers and host-environments.
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