minTemp
correct minTemp detection @ MK2.5 & MK3
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4 changed files with 64 additions and 40 deletions
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@ -41,6 +41,9 @@
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#include "adc.h"
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#include "ConfigurationStore.h"
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#include "Timer.h"
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#include "Configuration_prusa.h"
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//===========================================================================
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//=============================public variables============================
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@ -152,6 +155,8 @@ static volatile bool temp_meas_ready = false;
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# define ARRAY_BY_EXTRUDERS(v1, v2, v3) { v1 }
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#endif
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static ShortTimer oTimer4minTempHeater,oTimer4minTempBed;
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// Init min and max temp with extreme values to prevent false errors during startup
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static int minttemp_raw[EXTRUDERS] = ARRAY_BY_EXTRUDERS( HEATER_0_RAW_LO_TEMP , HEATER_1_RAW_LO_TEMP , HEATER_2_RAW_LO_TEMP );
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static int maxttemp_raw[EXTRUDERS] = ARRAY_BY_EXTRUDERS( HEATER_0_RAW_HI_TEMP , HEATER_1_RAW_HI_TEMP , HEATER_2_RAW_HI_TEMP );
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@ -596,6 +601,9 @@ void manage_heater()
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updateTemperaturesFromRawValues();
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check_max_temp();
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check_min_temp();
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#ifdef TEMP_RUNAWAY_BED_HYSTERESIS
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temp_runaway_check(0, target_temperature_bed, current_temperature_bed, (int)soft_pwm_bed, true);
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#endif
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@ -669,11 +677,7 @@ void manage_heater()
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#endif
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// Check if temperature is within the correct range
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#ifdef AMBIENT_THERMISTOR
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if(((current_temperature_ambient < MINTEMP_MINAMBIENT) || (current_temperature[e] > minttemp[e])) && (current_temperature[e] < maxttemp[e]))
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#else //AMBIENT_THERMISTOR
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if((current_temperature[e] > minttemp[e]) && (current_temperature[e] < maxttemp[e]))
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#endif //AMBIENT_THERMISTOR
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if(current_temperature[e] < maxttemp[e])
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{
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soft_pwm[e] = (int)pid_output >> 1;
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}
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@ -763,11 +767,7 @@ void manage_heater()
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pid_output = constrain(target_temperature_bed, 0, MAX_BED_POWER);
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#endif //PID_OPENLOOP
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#ifdef AMBIENT_THERMISTOR
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if(((current_temperature_bed > BED_MINTEMP) || (current_temperature_ambient < MINTEMP_MINAMBIENT)) && (current_temperature_bed < BED_MAXTEMP))
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#else //AMBIENT_THERMISTOR
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if((current_temperature_bed > BED_MINTEMP) && (current_temperature_bed < BED_MAXTEMP))
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#endif //AMBIENT_THERMISTOR
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if(current_temperature_bed < BED_MAXTEMP)
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{
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soft_pwm_bed = (int)pid_output >> 1;
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}
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@ -777,7 +777,7 @@ void manage_heater()
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#elif !defined(BED_LIMIT_SWITCHING)
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// Check if temperature is within the correct range
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if((current_temperature_bed > BED_MINTEMP) && (current_temperature_bed < BED_MAXTEMP))
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if(current_temperature_bed < BED_MAXTEMP)
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{
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if(current_temperature_bed >= target_temperature_bed)
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{
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@ -795,7 +795,7 @@ void manage_heater()
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}
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#else //#ifdef BED_LIMIT_SWITCHING
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// Check if temperature is within the correct band
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if((current_temperature_bed > BED_MINTEMP) && (current_temperature_bed < BED_MAXTEMP))
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if(current_temperature_bed < BED_MAXTEMP)
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{
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if(current_temperature_bed > target_temperature_bed + BED_HYSTERESIS)
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{
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@ -1526,7 +1526,7 @@ void adc_ready(void) //callback from adc when sampling finished
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// Timer 0 is shared with millies
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ISR(TIMER0_COMPB_vect)
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ISR(TIMER0_COMPB_vect) // @ 1kHz ~ 1ms
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{
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static bool _lock = false;
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if (_lock) return;
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@ -1534,11 +1534,6 @@ ISR(TIMER0_COMPB_vect)
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asm("sei");
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if (!temp_meas_ready) adc_cycle();
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else
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{
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check_max_temp();
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check_min_temp();
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}
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lcd_buttons_update();
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static unsigned char pwm_count = (1 << SOFT_PWM_SCALE);
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@ -1931,26 +1926,49 @@ void check_min_temp_bed()
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void check_min_temp()
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{
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static bool bCheckingOnHeater=false; // state variable, which allows to short no-checking delay (is set, when temperature is (first time) over heaterMintemp)
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static bool bCheckingOnBed=false; // state variable, which allows to short no-checking delay (is set, when temperature is (first time) over bedMintemp)
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#ifdef AMBIENT_THERMISTOR
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static uint8_t heat_cycles = 0;
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if (current_temperature_raw_ambient > OVERSAMPLENR*MINTEMP_MINAMBIENT_RAW)
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{
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if (READ(HEATER_0_PIN) == HIGH)
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{
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// if ((heat_cycles % 10) == 0)
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// printf_P(PSTR("X%d\n"), heat_cycles);
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if (heat_cycles > 50) //reaction time 5-10s
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check_min_temp_heater0();
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else
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heat_cycles++;
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}
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else
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heat_cycles = 0;
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return;
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}
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if(current_temperature_raw_ambient>(OVERSAMPLENR*MINTEMP_MINAMBIENT_RAW)) // thermistor is NTC type, so operator is ">" ;-)
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{ // ambient temperature is low
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#endif //AMBIENT_THERMISTOR
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// *** 'common' part of code for MK2.5 & MK3
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// * nozzle checking
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if(target_temperature[active_extruder]>minttemp[active_extruder])
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{ // ~ nozzle heating is on
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bCheckingOnHeater=bCheckingOnHeater||(current_temperature[active_extruder]>=minttemp[active_extruder]); // for eventually delay cutting
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if(oTimer4minTempHeater.expired(HEATER_MINTEMP_DELAY)||(!oTimer4minTempHeater.running())||bCheckingOnHeater)
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{
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bCheckingOnHeater=true; // not necessary
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check_min_temp_heater0(); // delay is elapsed or temperature is/was over minTemp => periodical checking is active
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}
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}
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else { // ~ nozzle heating is off
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oTimer4minTempHeater.start();
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bCheckingOnHeater=false;
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}
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// * bed checking
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if(target_temperature_bed>BED_MINTEMP)
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{ // ~ bed heating is on
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bCheckingOnBed=bCheckingOnBed||(current_temperature_bed>=BED_MINTEMP); // for eventually delay cutting
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if(oTimer4minTempBed.expired(BED_MINTEMP_DELAY)||(!oTimer4minTempBed.running())||bCheckingOnBed)
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{
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bCheckingOnBed=true; // not necessary
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check_min_temp_bed(); // delay is elapsed or temperature is/was over minTemp => periodical checking is active
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}
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}
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else { // ~ bed heating is off
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oTimer4minTempBed.start();
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bCheckingOnBed=false;
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}
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// *** end of 'common' part
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#ifdef AMBIENT_THERMISTOR
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}
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else { // ambient temperature is standard
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check_min_temp_heater0();
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check_min_temp_bed();
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}
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#endif //AMBIENT_THERMISTOR
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check_min_temp_heater0();
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check_min_temp_bed();
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}
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#if (defined(FANCHECK) && defined(TACH_0) && (TACH_0 > -1))
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@ -153,10 +153,12 @@
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*------------------------------------*/
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// Mintemps
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#define HEATER_0_MINTEMP 15
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#define HEATER_0_MINTEMP 30
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#define HEATER_1_MINTEMP 5
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#define HEATER_2_MINTEMP 5
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#define BED_MINTEMP 15
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#define HEATER_MINTEMP_DELAY 15000 // [ms] ! if changed, check maximal allowed value @ ShortTimer
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#define BED_MINTEMP 30
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#define BED_MINTEMP_DELAY 50000 // [ms] ! if changed, check maximal allowed value @ ShortTimer
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// Maxtemps
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#if defined(E3D_PT100_EXTRUDER_WITH_AMP) || defined(E3D_PT100_EXTRUDER_NO_AMP)
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@ -154,10 +154,12 @@
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*------------------------------------*/
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// Mintemps
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#define HEATER_0_MINTEMP 15
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#define HEATER_0_MINTEMP 30
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#define HEATER_1_MINTEMP 5
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#define HEATER_2_MINTEMP 5
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#define BED_MINTEMP 15
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#define HEATER_MINTEMP_DELAY 15000 // [ms] ! if changed, check maximal allowed value @ ShortTimer
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#define BED_MINTEMP 30
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#define BED_MINTEMP_DELAY 50000 // [ms] ! if changed, check maximal allowed value @ ShortTimer
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// Maxtemps
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#if defined(E3D_PT100_EXTRUDER_WITH_AMP) || defined(E3D_PT100_EXTRUDER_NO_AMP)
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@ -276,7 +276,9 @@
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#define HEATER_0_MINTEMP 15
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#define HEATER_1_MINTEMP 5
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#define HEATER_2_MINTEMP 5
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#define HEATER_MINTEMP_DELAY 15000 // [ms] ! if changed, check maximal allowed value @ ShortTimer
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#define BED_MINTEMP 15
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#define BED_MINTEMP_DELAY 50000 // [ms] ! if changed, check maximal allowed value @ ShortTimer
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// Maxtemps
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#if defined(E3D_PT100_EXTRUDER_WITH_AMP) || defined(E3D_PT100_EXTRUDER_NO_AMP)
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