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Add Chamber servo vent, auto fan (#19519)

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2.0.x
ladismrkolj 4 years ago committed by Scott Lahteine
parent 6fcbf11454
commit 2b845e5a75
6 changed files with 193 additions and 39 deletions
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45
Marlin/Configuration_adv.h
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@ -32,11 +32,10 @@
*/
#define CONFIGURATION_ADV_H_VERSION 020007
// @section temperature
//===========================================================================
//============================= Thermal Settings ============================
//===========================================================================
// @section temperature
/**
* Thermocouple sensors are quite sensitive to noise. Any noise induced in
@ -125,9 +124,19 @@
#define HEATER_BED_INVERTING true
#endif
/**
* Heated Chamber settings
*/
//
// Heated Bed Bang-Bang options
//
#if DISABLED(PIDTEMPBED)
#define BED_CHECK_INTERVAL 5000 // (ms) Interval between checks in bang-bang control
#if ENABLED(BED_LIMIT_SWITCHING)
#define BED_HYSTERESIS 2 // (°C) Only set the relevant heater state when ABS(T-target) > BED_HYSTERESIS
#endif
#endif
//
// Heated Chamber options
//
#if TEMP_SENSOR_CHAMBER
#define CHAMBER_MINTEMP 5
#define CHAMBER_MAXTEMP 60
@ -135,12 +144,28 @@
//#define CHAMBER_LIMIT_SWITCHING
//#define HEATER_CHAMBER_PIN 44 // Chamber heater on/off pin
//#define HEATER_CHAMBER_INVERTING false
#endif
#if DISABLED(PIDTEMPBED)
#define BED_CHECK_INTERVAL 5000 // ms between checks in bang-bang control
#if ENABLED(BED_LIMIT_SWITCHING)
#define BED_HYSTERESIS 2 // Only disable heating if T>target+BED_HYSTERESIS and enable heating if T>target-BED_HYSTERESIS
//#define CHAMBER_FAN // Enable a fan on the chamber
#if ENABLED(CHAMBER_FAN)
#define CHAMBER_FAN_MODE 2 // Fan control mode: 0=Static; 1=Linear increase when temp is higher than target; 2=V-shaped curve.
#if CHAMBER_FAN_MODE == 0
#define CHAMBER_FAN_BASE 255 // Chamber fan PWM (0-255)
#elif CHAMBER_FAN_MODE == 1
#define CHAMBER_FAN_BASE 128 // Base chamber fan PWM (0-255); turns on when chamber temperature is above the target
#define CHAMBER_FAN_FACTOR 25 // PWM increase per °C above target
#elif CHAMBER_FAN_MODE == 2
#define CHAMBER_FAN_BASE 128 // Minimum chamber fan PWM (0-255)
#define CHAMBER_FAN_FACTOR 25 // PWM increase per °C difference from target
#endif
#endif
//#define CHAMBER_VENT // Enable a servo-controlled vent on the chamber
#if ENABLED(CHAMBER_VENT)
#define CHAMBER_VENT_SERVO_NR 1 // Index of the vent servo
#define HIGH_EXCESS_HEAT_LIMIT 5 // How much above target temp to consider there is excess heat in the chamber
#define LOW_EXCESS_HEAT_LIMIT 3
#define MIN_COOLING_SLOPE_TIME_CHAMBER_VENT 20
#define MIN_COOLING_SLOPE_DEG_CHAMBER_VENT 1.5
#endif
#endif

17
Marlin/src/inc/Conditionals_LCD.h
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@ -603,10 +603,6 @@
#define DO_SWITCH_EXTRUDER 1
#endif
#ifdef SWITCHING_NOZZLE_E1_SERVO_NR
#define SWITCHING_NOZZLE_TWO_SERVOS 1
#endif
/**
* Default hotend offsets, if not defined
*/
@ -657,14 +653,7 @@
#ifndef Z_PROBE_SERVO_NR
#define Z_PROBE_SERVO_NR 0
#endif
#ifndef NUM_SERVOS
#define NUM_SERVOS (Z_PROBE_SERVO_NR + 1)
#endif
#undef DEACTIVATE_SERVOS_AFTER_MOVE
#if NUM_SERVOS == 1
#undef SERVO_DELAY
#define SERVO_DELAY { 50 }
#endif
// Always disable probe pin inverting for BLTouch
#undef Z_MIN_PROBE_ENDSTOP_INVERTING
@ -675,14 +664,10 @@
#endif
#endif
#ifndef NUM_SERVOS
#define NUM_SERVOS 0
#endif
/**
* Set a flag for a servo probe (or BLTouch)
*/
#if defined(Z_PROBE_SERVO_NR) && Z_PROBE_SERVO_NR >= 0
#ifdef Z_PROBE_SERVO_NR
#define HAS_Z_SERVO_PROBE 1
#endif
#if ANY(HAS_Z_SERVO_PROBE, SWITCHING_EXTRUDER, SWITCHING_NOZZLE)

45
Marlin/src/inc/Conditionals_adv.h
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@ -26,6 +26,51 @@
* Defines that depend on advanced configuration.
*/
#ifdef SWITCHING_NOZZLE_E1_SERVO_NR
#define SWITCHING_NOZZLE_TWO_SERVOS 1
#endif
// Determine NUM_SERVOS if none was supplied
#ifndef NUM_SERVOS
#define NUM_SERVOS 0
#if ANY(CHAMBER_VENT, HAS_Z_SERVO_PROBE, SWITCHING_EXTRUDER, SWITCHING_NOZZLE)
#if NUM_SERVOS <= Z_PROBE_SERVO_NR
#undef NUM_SERVOS
#define NUM_SERVOS (Z_PROBE_SERVO_NR + 1)
#endif
#if NUM_SERVOS <= CHAMBER_VENT_SERVO_NR
#undef NUM_SERVOS
#define NUM_SERVOS (CHAMBER_VENT_SERVO_NR + 1)
#endif
#if NUM_SERVOS <= SWITCHING_TOOLHEAD_SERVO_NR
#undef NUM_SERVOS
#define NUM_SERVOS (SWITCHING_TOOLHEAD_SERVO_NR + 1)
#endif
#if NUM_SERVOS <= SWITCHING_NOZZLE_SERVO_NR
#undef NUM_SERVOS
#define NUM_SERVOS (SWITCHING_NOZZLE_SERVO_NR + 1)
#endif
#if NUM_SERVOS <= SWITCHING_NOZZLE_E1_SERVO_NR
#undef NUM_SERVOS
#define NUM_SERVOS (SWITCHING_NOZZLE_E1_SERVO_NR + 1)
#endif
#if NUM_SERVOS <= SWITCHING_EXTRUDER_SERVO_NR
#undef NUM_SERVOS
#define NUM_SERVOS (SWITCHING_EXTRUDER_SERVO_NR + 1)
#endif
#if NUM_SERVOS <= SWITCHING_EXTRUDER_E23_SERVO_NR
#undef NUM_SERVOS
#define NUM_SERVOS (SWITCHING_EXTRUDER_E23_SERVO_NR + 1)
#endif
#endif
#endif
// Convenience override for a BLTouch alone
#if ENABLED(BLTOUCH) && NUM_SERVOS == 1
#undef SERVO_DELAY
#define SERVO_DELAY { 50 }
#endif
#if EXTRUDERS == 0
#define NO_VOLUMETRICS
#undef TEMP_SENSOR_0

32
Marlin/src/inc/SanityCheck.h
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@ -1249,8 +1249,10 @@ static_assert(Y_MAX_LENGTH >= Y_BED_SIZE, "Movement bounds (Y_MIN_POS, Y_MAX_POS
* NUM_SERVOS is required for a Z servo probe
*/
#if HAS_Z_SERVO_PROBE
#ifndef NUM_SERVOS
#error "You must set NUM_SERVOS for a Z servo probe (Z_PROBE_SERVO_NR)."
#if !NUM_SERVOS
#error "NUM_SERVOS is required for a Z servo probe (Z_PROBE_SERVO_NR)."
#elif Z_PROBE_SERVO_NR >= NUM_SERVOS
#error "Z_PROBE_SERVO_NR must be smaller than NUM_SERVOS."
#elif Z_PROBE_SERVO_NR == 0 && !PIN_EXISTS(SERVO0)
#error "SERVO0_PIN must be defined for your servo or BLTOUCH probe."
#elif Z_PROBE_SERVO_NR == 1 && !PIN_EXISTS(SERVO1)
@ -1259,8 +1261,6 @@ static_assert(Y_MAX_LENGTH >= Y_BED_SIZE, "Movement bounds (Y_MIN_POS, Y_MAX_POS
#error "SERVO2_PIN must be defined for your servo or BLTOUCH probe."
#elif Z_PROBE_SERVO_NR == 3 && !PIN_EXISTS(SERVO3)
#error "SERVO3_PIN must be defined for your servo or BLTOUCH probe."
#elif Z_PROBE_SERVO_NR >= NUM_SERVOS
#error "Z_PROBE_SERVO_NR must be smaller than NUM_SERVOS."
#endif
#endif
@ -1807,6 +1807,30 @@ static_assert(hbm[Z_AXIS] >= 0, "HOMING_BUMP_MM.Z must be greater than or equal
#error "TEMP_SENSOR_CHAMBER requires TEMP_CHAMBER_PIN. Please add it to your configuration."
#endif
#if ENABLED(CHAMBER_FAN) && !(defined(CHAMBER_FAN_MODE) && WITHIN(CHAMBER_FAN_MODE, 0, 2))
#error "CHAMBER_FAN_MODE must be between 0 and 2. Please update your Configuration_adv.h."
#endif
#if ENABLED(CHAMBER_VENT)
#ifndef CHAMBER_VENT_SERVO_NR
#error "CHAMBER_VENT_SERVO_NR is required for CHAMBER SERVO. Update your Configuration_adv.h."
#elif !NUM_SERVOS
#error "NUM_SERVOS is required for a Heated Chamber vent servo (CHAMBER_VENT_SERVO_NR)."
#elif CHAMBER_VENT_SERVO_NR >= NUM_SERVOS
#error "CHAMBER_VENT_SERVO_NR must be smaller than NUM_SERVOS."
#elif HAS_Z_SERVO_PROBE && CHAMBER_VENT_SERVO_NR == Z_PROBE_SERVO_NR
#error "CHAMBER SERVO is already used by BLTOUCH. Please change."
#elif CHAMBER_VENT_SERVO_NR == 0 && !PIN_EXISTS(SERVO0)
#error "SERVO0_PIN must be defined for your Heated Chamber vent servo."
#elif CHAMBER_VENT_SERVO_NR == 1 && !PIN_EXISTS(SERVO1)
#error "SERVO1_PIN must be defined for your Heated Chamber vent servo."
#elif CHAMBER_VENT_SERVO_NR == 2 && !PIN_EXISTS(SERVO2)
#error "SERVO2_PIN must be defined for your Heated Chamber vent servo."
#elif CHAMBER_VENT_SERVO_NR == 3 && !PIN_EXISTS(SERVO3)
#error "SERVO3_PIN must be defined for your Heated Chamber vent servo."
#endif
#endif
#if TEMP_SENSOR_PROBE
#if !PIN_EXISTS(TEMP_PROBE)
#error "TEMP_SENSOR_PROBE requires TEMP_PROBE_PIN. Please add it to your configuration."

92
Marlin/src/module/temperature.cpp
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@ -111,6 +111,9 @@
#include "../libs/buzzer.h"
#endif
#if HAS_SERVOS
#include "./servo.h"
#endif
#if HOTEND_USES_THERMISTOR
#if ENABLED(TEMP_SENSOR_1_AS_REDUNDANT)
static const temp_entry_t* heater_ttbl_map[2] = { HEATER_0_TEMPTABLE, HEATER_1_TEMPTABLE };
@ -271,6 +274,11 @@ const char str_t_thermal_runaway[] PROGMEM = STR_T_THERMAL_RUNAWAY,
#if HAS_TEMP_CHAMBER
chamber_info_t Temperature::temp_chamber; // = { 0 }
#if HAS_HEATED_CHAMBER
int16_t fan_chamber_pwm;
bool flag_chamber_off;
bool flag_chamber_excess_heat = false;
millis_t next_cool_check_ms_2 = 0;
float old_temp = 9999;
#ifdef CHAMBER_MINTEMP
int16_t Temperature::mintemp_raw_CHAMBER = HEATER_CHAMBER_RAW_LO_TEMP;
#endif
@ -1194,18 +1202,84 @@ void Temperature::manage_heater() {
}
#endif
#if EITHER(CHAMBER_FAN, CHAMBER_VENT)
if (temp_chamber.target > CHAMBER_MINTEMP) {
flag_chamber_off = false;
#if ENABLED(CHAMBER_FAN)
#if CHAMBER_FAN_MODE == 0
fan_chamber_pwm = CHAMBER_FAN_BASE
#elif CHAMBER_FAN_MODE == 1
fan_chamber_pwm = temp_chamber.celsius > temp_chamber.target ? CHAMBER_FAN_BASE + ((temp_chamber.celsius - temp_chamber.target) * CHAMBER_FAN_FACTOR ) : 0;
#elif CHAMBER_FAN_MODE == 2
fan_chamber_pwm = (CHAMBER_FAN_BASE) + (CHAMBER_FAN_FACTOR) * ABS(temp_chamber.celsius - temp_chamber.target);
if (temp_chamber.soft_pwm_amount)
fan_chamber_pwm += (CHAMBER_FAN_FACTOR) * 2;
#endif
fan_chamber_pwm = _MIN(225, fan_chamber_pwm);
thermalManager.set_fan_speed(2, fan_chamber_pwm); // TODO: instead of fan 2, set to chamber fan
#endif
#if ENABLED(CHAMBER_VENT)
#ifndef MIN_COOLING_SLOPE_TIME_CHAMBER_VENT
#define MIN_COOLING_SLOPE_TIME_CHAMBER_VENT 20
#endif
#ifndef MIN_COOLING_SLOPE_DEG_CHAMBER_VENT
#define MIN_COOLING_SLOPE_DEG_CHAMBER_VENT 1.5
#endif
if( (temp_chamber.celsius - temp_chamber.target >= HIGH_EXCESS_HEAT_LIMIT) && !flag_chamber_excess_heat) {
// open vent after MIN_COOLING_SLOPE_TIME_CHAMBER_VENT seconds
// if the temperature did not drop at least MIN_COOLING_SLOPE_DEG_CHAMBER_VENT
if (next_cool_check_ms_2 == 0 || ELAPSED(ms, next_cool_check_ms_2)) {
if (old_temp - temp_chamber.celsius < float(MIN_COOLING_SLOPE_DEG_CHAMBER_VENT)) flag_chamber_excess_heat = true; //the bed is heating the chamber too much
next_cool_check_ms_2 = ms + 1000UL * MIN_COOLING_SLOPE_TIME_CHAMBER_VENT;
old_temp = temp_chamber.celsius;
}
}
else {
next_cool_check_ms_2 = 0;
old_temp = 9999;
}
if (flag_chamber_excess_heat && (temp_chamber.celsius - temp_chamber.target <= -LOW_EXCESS_HEAT_LIMIT) ) {
flag_chamber_excess_heat = false;
}
#endif
}
else if (!flag_chamber_off) {
#if ENABLED(CHAMBER_FAN)
flag_chamber_off = true;
thermalManager.set_fan_speed(2, 0);
#endif
#if ENABLED(CHAMBER_VENT)
flag_chamber_excess_heat = false;
MOVE_SERVO(CHAMBER_VENT_SERVO_NR, 90);
#endif
}
#endif
if (ELAPSED(ms, next_chamber_check_ms)) {
next_chamber_check_ms = ms + CHAMBER_CHECK_INTERVAL;
if (WITHIN(temp_chamber.celsius, CHAMBER_MINTEMP, CHAMBER_MAXTEMP)) {
#if ENABLED(CHAMBER_LIMIT_SWITCHING)
if (temp_chamber.celsius >= temp_chamber.target + TEMP_CHAMBER_HYSTERESIS)
temp_chamber.soft_pwm_amount = 0;
else if (temp_chamber.celsius <= temp_chamber.target - (TEMP_CHAMBER_HYSTERESIS))
temp_chamber.soft_pwm_amount = MAX_CHAMBER_POWER >> 1;
#else
temp_chamber.soft_pwm_amount = temp_chamber.celsius < temp_chamber.target ? MAX_CHAMBER_POWER >> 1 : 0;
#endif
if (!flag_chamber_excess_heat){
#if ENABLED(CHAMBER_LIMIT_SWITCHING)
if (temp_chamber.celsius >= temp_chamber.target + TEMP_CHAMBER_HYSTERESIS)
temp_chamber.soft_pwm_amount = 0;
else if (temp_chamber.celsius <= temp_chamber.target - (TEMP_CHAMBER_HYSTERESIS))
temp_chamber.soft_pwm_amount = (MAX_CHAMBER_POWER) >> 1;
#else
temp_chamber.soft_pwm_amount = temp_chamber.celsius < temp_chamber.target ? (MAX_CHAMBER_POWER) >> 1 : 0;
#endif
#if ENABLED(CHAMBER_VENT)
if (!flag_chamber_off) MOVE_SERVO(CHAMBER_VENT_SERVO_NR, 0);
#endif
}
else {
temp_chamber.soft_pwm_amount = 0;
#if ENABLED(CHAMBER_VENT)
if (!flag_chamber_off) MOVE_SERVO(CHAMBER_VENT_SERVO_NR, temp_chamber.celsius <= temp_chamber.target ? 0 : 90);
#endif
}
}
else {
temp_chamber.soft_pwm_amount = 0;
@ -3370,7 +3444,7 @@ void Temperature::tick() {
#define MIN_COOLING_SLOPE_DEG_CHAMBER 1.50
#endif
#ifndef MIN_COOLING_SLOPE_TIME_CHAMBER
#define MIN_COOLING_SLOPE_TIME_CHAMBER 60
#define MIN_COOLING_SLOPE_TIME_CHAMBER 120
#endif
bool Temperature::wait_for_chamber(const bool no_wait_for_cooling/*=true*/) {

1
Marlin/src/pins/stm32f4/pins_BTT_SKR_PRO_common.h
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@ -41,6 +41,7 @@
// Servos
//
#define SERVO0_PIN PA1
#define SERVO1_PIN PC9
//
// Trinamic Stallguard pins

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