Firmware2/Marlin/src/module/tool_change.cpp

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/**
* Marlin 3D Printer Firmware
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* Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
*
* Based on Sprinter and grbl.
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* Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
#include "../inc/MarlinConfigPre.h"
#include "tool_change.h"
#include "probe.h"
#include "motion.h"
#include "planner.h"
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#include "temperature.h"
#include "../Marlin.h"
#define DEBUG_OUT ENABLED(DEBUG_LEVELING_FEATURE)
#include "../core/debug_out.h"
#if EXTRUDERS > 1
toolchange_settings_t toolchange_settings; // Initialized by settings.load()
#endif
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#if ENABLED(SINGLENOZZLE)
uint16_t singlenozzle_temp[EXTRUDERS];
#if FAN_COUNT > 0
uint8_t singlenozzle_fan_speed[EXTRUDERS];
#endif
#endif
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#if ENABLED(MAGNETIC_PARKING_EXTRUDER) || (ENABLED(PARKING_EXTRUDER) && PARKING_EXTRUDER_SOLENOIDS_DELAY > 0)
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#include "../gcode/gcode.h" // for dwell()
#endif
#if ANY(SWITCHING_EXTRUDER, SWITCHING_NOZZLE, SWITCHING_TOOLHEAD)
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#include "servo.h"
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#endif
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#if ENABLED(EXT_SOLENOID) && DISABLED(PARKING_EXTRUDER)
#include "../feature/solenoid.h"
#endif
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#if ENABLED(MK2_MULTIPLEXER)
#include "../feature/snmm.h"
#endif
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#if ENABLED(MIXING_EXTRUDER)
#include "../feature/mixing.h"
#endif
#if HAS_LEVELING
#include "../feature/bedlevel/bedlevel.h"
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#endif
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#if HAS_FANMUX
#include "../feature/fanmux.h"
#endif
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#if ENABLED(PRUSA_MMU2)
#include "../feature/prusa_MMU2/mmu2.h"
#endif
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#if HAS_LCD_MENU
#include "../lcd/ultralcd.h"
#endif
#if DO_SWITCH_EXTRUDER
#if EXTRUDERS > 3
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#define _SERVO_NR(E) ((E) < 2 ? SWITCHING_EXTRUDER_SERVO_NR : SWITCHING_EXTRUDER_E23_SERVO_NR)
#else
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#define _SERVO_NR(E) SWITCHING_EXTRUDER_SERVO_NR
#endif
void move_extruder_servo(const uint8_t e) {
planner.synchronize();
#if EXTRUDERS & 1
if (e < EXTRUDERS - 1)
#endif
{
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MOVE_SERVO(_SERVO_NR(e), servo_angles[_SERVO_NR(e)][e]);
safe_delay(500);
}
}
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#endif // DO_SWITCH_EXTRUDER
#if ENABLED(SWITCHING_NOZZLE)
#if SWITCHING_NOZZLE_TWO_SERVOS
inline void _move_nozzle_servo(const uint8_t e, const uint8_t angle_index) {
constexpr int8_t sns_index[2] = { SWITCHING_NOZZLE_SERVO_NR, SWITCHING_NOZZLE_E1_SERVO_NR };
constexpr int16_t sns_angles[2] = SWITCHING_NOZZLE_SERVO_ANGLES;
planner.synchronize();
MOVE_SERVO(sns_index[e], sns_angles[angle_index]);
safe_delay(500);
}
void lower_nozzle(const uint8_t e) { _move_nozzle_servo(e, 0); }
void raise_nozzle(const uint8_t e) { _move_nozzle_servo(e, 1); }
#else
void move_nozzle_servo(const uint8_t angle_index) {
planner.synchronize();
MOVE_SERVO(SWITCHING_NOZZLE_SERVO_NR, servo_angles[SWITCHING_NOZZLE_SERVO_NR][angle_index]);
safe_delay(500);
}
#endif
#endif // SWITCHING_NOZZLE
inline void fast_line_to_current(const AxisEnum fr_axis) {
planner.buffer_line(current_position, planner.settings.max_feedrate_mm_s[fr_axis], active_extruder);
}
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#if ENABLED(MAGNETIC_PARKING_EXTRUDER)
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float parkingposx[2] , // M951 R L
parkinggrabdistance , // M951 I
parkingslowspeed, // M951 J
parkinghighspeed , // M951 H
parkingtraveldistance, // M951 D
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compensationmultiplier;
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inline void magnetic_parking_extruder_tool_change(const uint8_t tmp_extruder) {
const float oldx = current_position[X_AXIS],
grabpos = mpe_settings.parking_xpos[tmp_extruder] + (tmp_extruder ? mpe_settings.grab_distance : -mpe_settings.grab_distance),
offsetcompensation =
#if HAS_HOTEND_OFFSET
hotend_offset[X_AXIS][active_extruder] * mpe_settings.compensation_factor
#else
0
#endif
;
if (axis_unhomed_error(true, false, false)) return;
/**
* Z Lift and Nozzle Offset shift ar defined in caller method to work equal with any Multi Hotend realization
*
* Steps:
* 1. Move high speed to park position of new extruder
* 2. Move to couple position of new extruder (this also discouple the old extruder)
* 3. Move to park position of new extruder
* 4. Move high speed to approach park position of old extruder
* 5. Move to park position of old extruder
* 6. Move to starting position
*/
// STEP 1
current_position[X_AXIS] = mpe_settings.parking_xpos[tmp_extruder] + offsetcompensation;
if (DEBUGGING(LEVELING)) {
DEBUG_ECHOPAIR("(1) Move extruder ", int(tmp_extruder));
DEBUG_POS(" to new extruder ParkPos", current_position);
}
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planner.buffer_line(current_position, mpe_settings.fast_feedrate, tmp_extruder);
planner.synchronize();
// STEP 2
current_position[X_AXIS] = grabpos + offsetcompensation;
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if (DEBUGGING(LEVELING)) {
DEBUG_ECHOPAIR("(2) Couple extruder ", int(tmp_extruder));
DEBUG_POS(" to new extruder GrabPos", current_position);
}
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planner.buffer_line(current_position, mpe_settings.slow_feedrate, tmp_extruder);
planner.synchronize();
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// Delay before moving tool, to allow magnetic coupling
gcode.dwell(150);
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// STEP 3
current_position[X_AXIS] = mpe_settings.parking_xpos[tmp_extruder] + offsetcompensation;
if (DEBUGGING(LEVELING)) {
DEBUG_ECHOPAIR("(3) Move extruder ", int(tmp_extruder));
DEBUG_POS(" back to new extruder ParkPos", current_position);
}
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planner.buffer_line(current_position, mpe_settings.slow_feedrate, tmp_extruder);
planner.synchronize();
// STEP 4
current_position[X_AXIS] = mpe_settings.parking_xpos[active_extruder] + (active_extruder == 0 ? MPE_TRAVEL_DISTANCE : -MPE_TRAVEL_DISTANCE) + offsetcompensation;
if (DEBUGGING(LEVELING)) {
DEBUG_ECHOPAIR("(4) Move extruder ", int(tmp_extruder));
DEBUG_POS(" close to old extruder ParkPos", current_position);
}
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planner.buffer_line(current_position, mpe_settings.fast_feedrate, tmp_extruder);
planner.synchronize();
// STEP 5
current_position[X_AXIS] = mpe_settings.parking_xpos[active_extruder] + offsetcompensation;
if (DEBUGGING(LEVELING)) {
DEBUG_ECHOPAIR("(5) Park extruder ", int(tmp_extruder));
DEBUG_POS(" at old extruder ParkPos", current_position);
}
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planner.buffer_line(current_position, mpe_settings.slow_feedrate, tmp_extruder);
planner.synchronize();
// STEP 6
current_position[X_AXIS] = oldx;
if (DEBUGGING(LEVELING)) {
DEBUG_ECHOPAIR("(6) Move extruder ", int(tmp_extruder));
DEBUG_POS(" to starting position", current_position);
}
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planner.buffer_line(current_position, mpe_settings.fast_feedrate, tmp_extruder);
planner.synchronize();
if (DEBUGGING(LEVELING)) DEBUG_ECHOLNPGM("Autopark done.");
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}
#elif ENABLED(PARKING_EXTRUDER)
void pe_solenoid_init() {
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for (uint8_t n = 0; n <= 1; ++n)
#if ENABLED(PARKING_EXTRUDER_SOLENOIDS_INVERT)
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pe_activate_solenoid(n);
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#else
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pe_deactivate_solenoid(n);
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#endif
}
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void pe_set_solenoid(const uint8_t extruder_num, const uint8_t state) {
switch (extruder_num) {
case 1: OUT_WRITE(SOL1_PIN, state); break;
default: OUT_WRITE(SOL0_PIN, state); break;
}
#if PARKING_EXTRUDER_SOLENOIDS_DELAY > 0
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gcode.dwell(PARKING_EXTRUDER_SOLENOIDS_DELAY);
#endif
}
inline void parking_extruder_tool_change(const uint8_t tmp_extruder, bool no_move) {
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if (!no_move) {
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constexpr float parkingposx[] = PARKING_EXTRUDER_PARKING_X;
#if HAS_HOTEND_OFFSET
const float x_offset = hotend_offset[X_AXIS][active_extruder];
#else
constexpr float x_offset = 0;
#endif
const float midpos = (parkingposx[0] + parkingposx[1]) * 0.5 + x_offset,
grabpos = parkingposx[tmp_extruder] + (tmp_extruder ? PARKING_EXTRUDER_GRAB_DISTANCE : -(PARKING_EXTRUDER_GRAB_DISTANCE)) + x_offset;
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/**
* 1. Move to park position of old extruder
* 2. Disengage magnetic field, wait for delay
* 3. Move near new extruder
* 4. Engage magnetic field for new extruder
* 5. Move to parking incl. offset of new extruder
* 6. Lower Z-Axis
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*/
// STEP 1
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if (DEBUGGING(LEVELING)) DEBUG_POS("Start Autopark", current_position);
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current_position[X_AXIS] = parkingposx[active_extruder] + x_offset;
if (DEBUGGING(LEVELING)) {
DEBUG_ECHOLNPAIR("(1) Park extruder ", int(active_extruder));
DEBUG_POS("Moving ParkPos", current_position);
}
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fast_line_to_current(X_AXIS);
planner.synchronize();
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// STEP 2
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if (DEBUGGING(LEVELING)) DEBUG_ECHOLNPGM("(2) Disengage magnet ");
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pe_deactivate_solenoid(active_extruder);
// STEP 3
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if (DEBUGGING(LEVELING)) DEBUG_ECHOLNPGM("(3) Move near new extruder");
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current_position[X_AXIS] += active_extruder ? -10 : 10; // move 10mm away from parked extruder
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if (DEBUGGING(LEVELING)) DEBUG_POS("Move away from parked extruder", current_position);
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fast_line_to_current(X_AXIS);
planner.synchronize();
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// STEP 4
if (DEBUGGING(LEVELING)) DEBUG_ECHOLNPGM("(4) Engage magnetic field");
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#if ENABLED(PARKING_EXTRUDER_SOLENOIDS_INVERT)
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pe_activate_solenoid(active_extruder); //just save power for inverted magnets
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#endif
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pe_activate_solenoid(tmp_extruder);
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// STEP 5
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current_position[X_AXIS] = grabpos + (tmp_extruder ? -10 : 10);
fast_line_to_current(X_AXIS);
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current_position[X_AXIS] = grabpos;
if (DEBUGGING(LEVELING)) DEBUG_POS("(5) Unpark extruder", current_position);
planner.buffer_line(current_position, planner.settings.max_feedrate_mm_s[X_AXIS] * 0.5, active_extruder);
planner.synchronize();
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// STEP 6
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current_position[X_AXIS] = midpos
#if HAS_HOTEND_OFFSET
- hotend_offset[X_AXIS][tmp_extruder]
#endif
;
if (DEBUGGING(LEVELING)) DEBUG_POS("(6) Move midway between hotends", current_position);
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fast_line_to_current(X_AXIS);
planner.synchronize();
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DEBUG_ECHOLNPGM("Autopark done.");
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}
else { // nomove == true
// Only engage magnetic field for new extruder
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pe_activate_solenoid(tmp_extruder);
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#if ENABLED(PARKING_EXTRUDER_SOLENOIDS_INVERT)
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pe_activate_solenoid(active_extruder); // Just save power for inverted magnets
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#endif
}
}
#endif // PARKING_EXTRUDER
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#if ENABLED(SWITCHING_TOOLHEAD)
inline void switching_toolhead_tool_change(const uint8_t tmp_extruder, bool no_move/*=false*/) {
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if (no_move) return;
constexpr uint16_t angles[2] = SWITCHING_TOOLHEAD_SERVO_ANGLES;
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constexpr float toolheadposx[] = SWITCHING_TOOLHEAD_X_POS;
const float placexpos = toolheadposx[active_extruder],
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grabxpos = toolheadposx[tmp_extruder];
/**
* 1. Move to switch position of current toolhead
* 2. Unlock tool and drop it in the dock
* 3. Move to the new toolhead
* 4. Grab and lock the new toolhead
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*/
// 1. Move to switch position of current toolhead
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if (DEBUGGING(LEVELING)) DEBUG_POS("Starting Toolhead change", current_position);
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current_position[X_AXIS] = placexpos;
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if (DEBUGGING(LEVELING)) {
DEBUG_ECHOLNPAIR("(1) Place old tool ", int(active_extruder));
DEBUG_POS("Move X SwitchPos", current_position);
}
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fast_line_to_current(X_AXIS);
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planner.synchronize();
current_position[Y_AXIS] = SWITCHING_TOOLHEAD_Y_POS - SWITCHING_TOOLHEAD_Y_SECURITY;
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if (DEBUGGING(LEVELING)) DEBUG_POS("Move Y SwitchPos + Security", current_position);
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fast_line_to_current(Y_AXIS);
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planner.synchronize();
// 2. Unlock tool and drop it in the dock
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if (DEBUGGING(LEVELING)) DEBUG_ECHOLNPGM("(2) Unlock and Place Toolhead");
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MOVE_SERVO(SWITCHING_TOOLHEAD_SERVO_NR, angles[1]);
safe_delay(500);
current_position[Y_AXIS] = SWITCHING_TOOLHEAD_Y_POS;
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if (DEBUGGING(LEVELING)) DEBUG_POS("Move Y SwitchPos", current_position);
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planner.buffer_line(current_position,(planner.settings.max_feedrate_mm_s[Y_AXIS] * 0.5), active_extruder);
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planner.synchronize();
safe_delay(200);
current_position[Y_AXIS] -= SWITCHING_TOOLHEAD_Y_CLEAR;
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if (DEBUGGING(LEVELING)) DEBUG_POS("Move back Y clear", current_position);
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fast_line_to_current(Y_AXIS); // move away from docked toolhead
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planner.synchronize();
// 3. Move to the new toolhead
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if (DEBUGGING(LEVELING)) DEBUG_ECHOLNPGM("(3) Move to new toolhead position");
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current_position[X_AXIS] = grabxpos;
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if (DEBUGGING(LEVELING)) DEBUG_POS("Move to new toolhead X", current_position);
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fast_line_to_current(X_AXIS);
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planner.synchronize();
current_position[Y_AXIS] = SWITCHING_TOOLHEAD_Y_POS - SWITCHING_TOOLHEAD_Y_SECURITY;
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if (DEBUGGING(LEVELING)) DEBUG_POS("Move Y SwitchPos + Security", current_position);
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fast_line_to_current(Y_AXIS);
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planner.synchronize();
// 4. Grab and lock the new toolhead
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if (DEBUGGING(LEVELING)) DEBUG_ECHOLNPGM("(4) Grab and lock new toolhead ");
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current_position[Y_AXIS] = SWITCHING_TOOLHEAD_Y_POS;
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if (DEBUGGING(LEVELING)) DEBUG_POS("Move Y SwitchPos", current_position);
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planner.buffer_line(current_position, planner.settings.max_feedrate_mm_s[Y_AXIS] * 0.5, active_extruder);
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planner.synchronize();
safe_delay(200);
MOVE_SERVO(SWITCHING_TOOLHEAD_SERVO_NR, angles[0]);
safe_delay(500);
current_position[Y_AXIS] -= SWITCHING_TOOLHEAD_Y_CLEAR;
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if (DEBUGGING(LEVELING)) DEBUG_POS("Move back Y clear", current_position);
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fast_line_to_current(Y_AXIS); // move away from docked toolhead
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planner.synchronize();
if (DEBUGGING(LEVELING)) DEBUG_ECHOLNPGM("Toolhead change done.");
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}
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#elif ENABLED(MAGNETIC_SWITCHING_TOOLHEAD)
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inline void magnetic_switching_toolhead_tool_change(const uint8_t tmp_extruder, bool no_move/*=false*/) {
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if (no_move) return;
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constexpr float toolheadposx[] = SWITCHING_TOOLHEAD_X_POS;
const float placexpos = toolheadposx[active_extruder],
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grabxpos = toolheadposx[tmp_extruder];
/**
* 1. Move to switch position of current toolhead
* 2. Release and place toolhead in the dock
* 3. Move to the new toolhead
* 4. Grab the new toolhead and move to security position
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*/
if (DEBUGGING(LEVELING)) DEBUG_POS("Starting Toolhead change", current_position);
// 1. Move to switch position current toolhead
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current_position[Y_AXIS] = SWITCHING_TOOLHEAD_Y_POS + SWITCHING_TOOLHEAD_Y_CLEAR;
if (DEBUGGING(LEVELING)) {
SERIAL_ECHOLNPAIR("(1) Place old tool ", int(active_extruder));
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DEBUG_POS("Move Y SwitchPos + Security", current_position);
}
planner.buffer_line(current_position, planner.settings.max_feedrate_mm_s[Y_AXIS], active_extruder);
planner.synchronize();
current_position[X_AXIS] = placexpos + SWITCHING_TOOLHEAD_X_SECURITY;
if (DEBUGGING(LEVELING)) DEBUG_POS("Move X SwitchPos + Security", current_position);
planner.buffer_line(current_position, planner.settings.max_feedrate_mm_s[X_AXIS], active_extruder);
planner.synchronize();
current_position[Y_AXIS] = SWITCHING_TOOLHEAD_Y_POS;
if (DEBUGGING(LEVELING)) DEBUG_POS("Move Y SwitchPos", current_position);
planner.buffer_line(current_position, planner.settings.max_feedrate_mm_s[Y_AXIS], active_extruder);
planner.synchronize();
current_position[X_AXIS] = placexpos;
if (DEBUGGING(LEVELING)) DEBUG_POS("Move X SwitchPos", current_position);
planner.buffer_line(current_position, (planner.settings.max_feedrate_mm_s[X_AXIS] * 0.25), active_extruder);
planner.synchronize();
// 2. Release and place toolhead in the dock
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if (DEBUGGING(LEVELING)) SERIAL_ECHOLNPGM("(2) Release and Place Toolhead");
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current_position[Y_AXIS] = SWITCHING_TOOLHEAD_Y_POS + SWITCHING_TOOLHEAD_Y_RELEASE;
if (DEBUGGING(LEVELING)) DEBUG_POS("Move Y SwitchPos + Release", current_position);
planner.buffer_line(current_position, (planner.settings.max_feedrate_mm_s[Y_AXIS] * 0.1), active_extruder);
planner.synchronize();
current_position[Y_AXIS] = SWITCHING_TOOLHEAD_Y_POS + SWITCHING_TOOLHEAD_Y_SECURITY;
if (DEBUGGING(LEVELING)) DEBUG_POS("Move Y SwitchPos + Security", current_position);
planner.buffer_line(current_position, (planner.settings.max_feedrate_mm_s[Y_AXIS]), active_extruder);
planner.synchronize();
// 3. Move to new toolhead position
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if (DEBUGGING(LEVELING)) SERIAL_ECHOLNPGM("(3) Move to new toolhead position");
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current_position[X_AXIS] = grabxpos;
if (DEBUGGING(LEVELING)) DEBUG_POS("Move to new toolhead X", current_position);
planner.buffer_line(current_position, planner.settings.max_feedrate_mm_s[X_AXIS], active_extruder);
planner.synchronize();
// 4. Grab the new toolhead and move to security position
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if (DEBUGGING(LEVELING)) SERIAL_ECHOLNPGM("(4) Grab new toolhead and move to security position");
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current_position[Y_AXIS] = SWITCHING_TOOLHEAD_Y_POS + SWITCHING_TOOLHEAD_Y_RELEASE;
if (DEBUGGING(LEVELING)) DEBUG_POS("Move Y SwitchPos + Release", current_position);
planner.buffer_line(current_position, (planner.settings.max_feedrate_mm_s[Y_AXIS]), active_extruder);
planner.synchronize();
current_position[Y_AXIS] = SWITCHING_TOOLHEAD_Y_POS;
if (DEBUGGING(LEVELING)) DEBUG_POS("Move Y SwitchPos", current_position);
planner.buffer_line(current_position, planner.settings.max_feedrate_mm_s[Y_AXIS] * 0.2, active_extruder);
planner.synchronize();
safe_delay(100);
current_position[X_AXIS] = grabxpos + SWITCHING_TOOLHEAD_X_SECURITY;
if (DEBUGGING(LEVELING)) DEBUG_POS("Move to new toolhead X + Security", current_position);
planner.buffer_line(current_position, planner.settings.max_feedrate_mm_s[X_AXIS] * 0.1, active_extruder);
planner.synchronize();
safe_delay(100);
current_position[Y_AXIS] += SWITCHING_TOOLHEAD_Y_CLEAR;
if (DEBUGGING(LEVELING)) DEBUG_POS("Move back Y clear", current_position);
planner.buffer_line(current_position, planner.settings.max_feedrate_mm_s[Y_AXIS], active_extruder); // move away from docked toolhead
planner.synchronize();
}
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#elif ENABLED(ELECTROMAGNETIC_SWITCHING_TOOLHEAD)
inline void est_activate_solenoid() { OUT_WRITE(SOL0_PIN, HIGH); }
inline void est_deactivate_solenoid() { OUT_WRITE(SOL0_PIN, LOW); }
void est_init() { est_activate_solenoid(); }
inline void electromagnetic_switching_toolhead(const uint8_t tmp_extruder, bool no_move) {
if (no_move) return;
constexpr float toolheadposx[] = SWITCHING_TOOLHEAD_X_POS;
const float placexpos = toolheadposx[active_extruder],
grabxpos = toolheadposx[tmp_extruder];
/**
* 1. Raise Z-Axis to give enough clearance
* 2. Move to position near active extruder parking
* 3. Move gently to park position of active extruder
* 4. Disengage magnetic field, wait for delay
* 5. Leave extruder and move to position near new extruder parking
* 6. Move gently to park position of new extruder
* 7. Engage magnetic field for new extruder parking
* 8. Unpark extruder
* 9. Apply Z hotend offset to current position
*/
#if ENABLED(DEBUG_LEVELING_FEATURE)
if (DEBUGGING(LEVELING)) DEBUG_POS("Starting Autopark", current_position);
#endif
// 1. Raise Z-Axis to give enough clearance
current_position[Z_AXIS] += SWITCHING_TOOLHEAD_Z_HOP;
#if ENABLED(DEBUG_LEVELING_FEATURE)
if (DEBUGGING(LEVELING)) DEBUG_POS("(1) Raise Z-Axis ", current_position);
#endif
planner.buffer_line(current_position, planner.settings.max_feedrate_mm_s[Z_AXIS], active_extruder);
// 2. Move to position near active extruder parking
#if ENABLED(DEBUG_LEVELING_FEATURE)
if (DEBUGGING(LEVELING)) {
planner.synchronize();
SERIAL_ECHOLNPAIR("(2) Move near active extruder parking", active_extruder);
DEBUG_POS("Moving ParkPos", current_position);
}
#endif
current_position[X_AXIS] = placexpos + hotend_offset[X_AXIS][active_extruder];
current_position[Y_AXIS] = SWITCHING_TOOLHEAD_Y_POS + SWITCHING_TOOLHEAD_Y_CLEAR + hotend_offset[Y_AXIS][active_extruder];
planner.buffer_line(current_position, planner.settings.max_feedrate_mm_s[X_AXIS], active_extruder);
// 3. Move gently to park position of active extruder
#if ENABLED(DEBUG_LEVELING_FEATURE)
if (DEBUGGING(LEVELING)) {
planner.synchronize();
SERIAL_ECHOLNPAIR("(3) Move gently to park position of active extruder", active_extruder);
DEBUG_POS("Moving ParkPos", current_position);
}
#endif
current_position[Y_AXIS] -= SWITCHING_TOOLHEAD_Y_CLEAR;
planner.buffer_line(current_position, planner.settings.max_feedrate_mm_s[Y_AXIS] * 0.5, active_extruder);
// 4. Disengage magnetic field, wait for delay
#if ENABLED(DEBUG_LEVELING_FEATURE)
if (DEBUGGING(LEVELING)) SERIAL_ECHOLNPGM("(4) Disengage magnet");
#endif
planner.synchronize();
est_deactivate_solenoid();
// 5. Leave extruder and move to position near new extruder parking
#if ENABLED(DEBUG_LEVELING_FEATURE)
if (DEBUGGING(LEVELING)) {
SERIAL_ECHOLNPGM("(5) Move near new extruder parking");
DEBUG_POS("Moving ParkPos", current_position);
}
#endif
current_position[Y_AXIS] += SWITCHING_TOOLHEAD_Y_CLEAR;
planner.buffer_line(current_position, planner.settings.max_feedrate_mm_s[Y_AXIS] * 0.5f, active_extruder);
current_position[X_AXIS] = grabxpos + hotend_offset[X_AXIS][active_extruder];
current_position[Y_AXIS] = SWITCHING_TOOLHEAD_Y_POS + SWITCHING_TOOLHEAD_Y_CLEAR + hotend_offset[Y_AXIS][active_extruder];
planner.buffer_line(current_position, planner.settings.max_feedrate_mm_s[X_AXIS], active_extruder);
// 6. Move gently to park position of new extruder
#if ENABLED(DEBUG_LEVELING_FEATURE)
if (DEBUGGING(LEVELING)) {
planner.synchronize();
SERIAL_ECHOLNPGM("(6) Move near new extruder");
}
#endif
current_position[Y_AXIS] -= SWITCHING_TOOLHEAD_Y_CLEAR;
planner.buffer_line(current_position, planner.settings.max_feedrate_mm_s[Y_AXIS] * 0.5f, active_extruder);
// 7. Engage magnetic field for new extruder parking
#if ENABLED(DEBUG_LEVELING_FEATURE)
if (DEBUGGING(LEVELING)) SERIAL_ECHOLNPGM("(7) Engage magnetic field");
#endif
planner.synchronize();
est_activate_solenoid();
// 8. Unpark extruder
#if ENABLED(DEBUG_LEVELING_FEATURE)
if (DEBUGGING(LEVELING)) SERIAL_ECHOLNPGM("(8) Unpark extruder");
#endif
current_position[Y_AXIS] += SWITCHING_TOOLHEAD_Y_CLEAR;
planner.buffer_line(current_position, planner.settings.max_feedrate_mm_s[X_AXIS] * 0.5f, active_extruder);
// 9. Apply Z hotend offset to current position
current_position[Z_AXIS] += hotend_offset[Z_AXIS][active_extruder] - hotend_offset[Z_AXIS][tmp_extruder];
#if ENABLED(DEBUG_LEVELING_FEATURE)
if (DEBUGGING(LEVELING)) {
planner.synchronize();
DEBUG_POS("(9) Applying Z-offset", current_position);
}
#endif
}
#endif // ELECTROMAGNETIC_SWITCHING_TOOLHEAD
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inline void invalid_extruder_error(const uint8_t e) {
SERIAL_ECHO_START();
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SERIAL_CHAR('T'); SERIAL_ECHO(int(e));
SERIAL_CHAR(' '); SERIAL_ECHOLNPGM(MSG_INVALID_EXTRUDER);
}
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#if ENABLED(DUAL_X_CARRIAGE)
inline void dualx_tool_change(const uint8_t tmp_extruder, bool &no_move) {
if (DEBUGGING(LEVELING)) {
DEBUG_ECHOPGM("Dual X Carriage Mode ");
switch (dual_x_carriage_mode) {
case DXC_FULL_CONTROL_MODE: DEBUG_ECHOLNPGM("FULL_CONTROL"); break;
case DXC_AUTO_PARK_MODE: DEBUG_ECHOLNPGM("AUTO_PARK"); break;
case DXC_DUPLICATION_MODE: DEBUG_ECHOLNPGM("DUPLICATION"); break;
case DXC_MIRRORED_MODE: DEBUG_ECHOLNPGM("MIRRORED"); break;
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}
}
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const float xhome = x_home_pos(active_extruder);
if (dual_x_carriage_mode == DXC_AUTO_PARK_MODE
&& IsRunning()
&& (delayed_move_time || current_position[X_AXIS] != xhome) && ! no_move
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) {
if (DEBUGGING(LEVELING)) DEBUG_ECHOLNPAIR("MoveX to ", xhome);
// Park old head
planner.buffer_line(xhome, current_position[Y_AXIS], current_position[Z_AXIS], current_position[E_AXIS], planner.settings.max_feedrate_mm_s[X_AXIS], active_extruder);
planner.synchronize();
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}
// Activate the new extruder ahead of calling set_axis_is_at_home!
active_extruder = tmp_extruder;
// This function resets the max/min values - the current position may be overwritten below.
set_axis_is_at_home(X_AXIS);
if (DEBUGGING(LEVELING)) DEBUG_POS("New Extruder", current_position);
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switch (dual_x_carriage_mode) {
case DXC_FULL_CONTROL_MODE:
// New current position is the position of the activated extruder
current_position[X_AXIS] = inactive_extruder_x_pos;
// Save the inactive extruder's position (from the old current_position)
inactive_extruder_x_pos = destination[X_AXIS];
break;
case DXC_AUTO_PARK_MODE:
// record current raised toolhead position for use by unpark
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COPY(raised_parked_position, current_position);
active_extruder_parked = true;
delayed_move_time = 0;
break;
default:
break;
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}
if (DEBUGGING(LEVELING)) {
DEBUG_ECHOLNPAIR("Active extruder parked: ", active_extruder_parked ? "yes" : "no");
DEBUG_POS("New extruder (parked)", current_position);
}
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}
#endif // DUAL_X_CARRIAGE
/**
* Perform a tool-change, which may result in moving the
* previous tool out of the way and the new tool into place.
*/
void tool_change(const uint8_t tmp_extruder, bool no_move/*=false*/) {
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#if ENABLED(MAGNETIC_SWITCHING_TOOLHEAD)
if (tmp_extruder == active_extruder) return;
#endif
#if ENABLED(MIXING_EXTRUDER)
UNUSED(no_move);
if (tmp_extruder >= MIXING_VIRTUAL_TOOLS)
return invalid_extruder_error(tmp_extruder);
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#if MIXING_VIRTUAL_TOOLS > 1
// T0-Tnnn: Switch virtual tool by changing the index to the mix
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mixer.T(tmp_extruder);
#endif
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#elif ENABLED(PRUSA_MMU2)
UNUSED(no_move);
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mmu2.tool_change(tmp_extruder);
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#elif EXTRUDERS < 2
UNUSED(no_move);
if (tmp_extruder) invalid_extruder_error(tmp_extruder);
return;
#else // EXTRUDERS > 1
planner.synchronize();
#if ENABLED(DUAL_X_CARRIAGE) // Only T0 allowed if the Printer is in DXC_DUPLICATION_MODE or DXC_MIRRORED_MODE
if (tmp_extruder != 0 && dxc_is_duplicating())
return invalid_extruder_error(tmp_extruder);
#endif
#if HAS_LEVELING
// Set current position to the physical position
const bool leveling_was_active = planner.leveling_active;
set_bed_leveling_enabled(false);
#endif
if (tmp_extruder >= EXTRUDERS)
return invalid_extruder_error(tmp_extruder);
if (!no_move && !all_axes_homed()) {
no_move = true;
if (DEBUGGING(LEVELING)) DEBUG_ECHOLNPGM("No move (not homed)");
}
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#if HAS_LCD_MENU
ui.return_to_status();
#endif
#if ENABLED(DUAL_X_CARRIAGE)
const bool idex_full_control = dual_x_carriage_mode == DXC_FULL_CONTROL_MODE;
#else
constexpr bool idex_full_control = false;
#endif
const bool can_move_away = !no_move && !idex_full_control;
#if ENABLED(TOOLCHANGE_FILAMENT_SWAP)
const bool should_swap = can_move_away && toolchange_settings.swap_length;
#if ENABLED(PREVENT_COLD_EXTRUSION)
const bool too_cold = !DEBUGGING(DRYRUN) && (thermalManager.targetTooColdToExtrude(active_extruder) || thermalManager.targetTooColdToExtrude(tmp_extruder));
#else
constexpr bool too_cold = false;
#endif
if (should_swap) {
if (too_cold) {
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SERIAL_ECHO_MSG(MSG_ERR_HOTEND_TOO_COLD);
#if ENABLED(SINGLENOZZLE)
active_extruder = tmp_extruder;
return;
#endif
}
else {
#if ENABLED(ADVANCED_PAUSE_FEATURE)
do_pause_e_move(-toolchange_settings.swap_length, MMM_TO_MMS(toolchange_settings.retract_speed));
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#else
current_position[E_AXIS] -= toolchange_settings.swap_length / planner.e_factor[active_extruder];
planner.buffer_line(current_position, MMM_TO_MMS(toolchange_settings.retract_speed), active_extruder);
planner.synchronize();
#endif
}
}
#endif // TOOLCHANGE_FILAMENT_SWAP
if (tmp_extruder != active_extruder) {
#if SWITCHING_NOZZLE_TWO_SERVOS
raise_nozzle(active_extruder);
#endif
REMEMBER(fr, feedrate_mm_s, XY_PROBE_FEEDRATE_MM_S);
#if HAS_SOFTWARE_ENDSTOPS
#if HAS_HOTEND_OFFSET
#define _EXT_ARGS , active_extruder, tmp_extruder
#else
#define _EXT_ARGS
#endif
update_software_endstops(X_AXIS _EXT_ARGS);
#if DISABLED(DUAL_X_CARRIAGE)
update_software_endstops(Y_AXIS _EXT_ARGS);
update_software_endstops(Z_AXIS _EXT_ARGS);
#endif
#endif
set_destination_from_current();
#if DISABLED(SWITCHING_NOZZLE)
if (can_move_away) {
// Do a small lift to avoid the workpiece in the move back (below)
current_position[Z_AXIS] += toolchange_settings.z_raise;
#if HAS_SOFTWARE_ENDSTOPS
NOMORE(current_position[Z_AXIS], soft_endstop[Z_AXIS].max);
#endif
fast_line_to_current(Z_AXIS);
#if ENABLED(TOOLCHANGE_PARK)
current_position[X_AXIS] = toolchange_settings.change_point.x;
current_position[Y_AXIS] = toolchange_settings.change_point.y;
#endif
planner.buffer_line(current_position, feedrate_mm_s, active_extruder);
planner.synchronize();
}
#endif
#if HAS_HOTEND_OFFSET
#if ENABLED(DUAL_X_CARRIAGE)
constexpr float xdiff = 0;
#else
const float xdiff = hotend_offset[X_AXIS][tmp_extruder] - hotend_offset[X_AXIS][active_extruder];
#endif
const float ydiff = hotend_offset[Y_AXIS][tmp_extruder] - hotend_offset[Y_AXIS][active_extruder],
zdiff = hotend_offset[Z_AXIS][tmp_extruder] - hotend_offset[Z_AXIS][active_extruder];
#else
constexpr float xdiff = 0, ydiff = 0, zdiff = 0;
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#endif
#if ENABLED(DUAL_X_CARRIAGE)
dualx_tool_change(tmp_extruder, no_move);
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#elif ENABLED(PARKING_EXTRUDER) // Dual Parking extruder
parking_extruder_tool_change(tmp_extruder, no_move);
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#elif ENABLED(MAGNETIC_PARKING_EXTRUDER) // Magnetic Parking extruder
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magnetic_parking_extruder_tool_change(tmp_extruder);
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#elif ENABLED(SWITCHING_TOOLHEAD) // Switching Toolhead
switching_toolhead_tool_change(tmp_extruder, no_move);
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#elif ENABLED(MAGNETIC_SWITCHING_TOOLHEAD) // Magnetic Switching Toolhead
magnetic_switching_toolhead_tool_change(tmp_extruder, no_move);
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#elif ENABLED(ELECTROMAGNETIC_SWITCHING_TOOLHEAD) // Magnetic Switching ToolChanger
electromagnetic_switching_toolhead(tmp_extruder, no_move);
#elif ENABLED(SWITCHING_NOZZLE) && !SWITCHING_NOZZLE_TWO_SERVOS // Switching Nozzle (single servo)
// Raise by a configured distance to avoid workpiece, except with
// SWITCHING_NOZZLE_TWO_SERVOS, as both nozzles will lift instead.
current_position[Z_AXIS] += _MAX(-zdiff, 0.0) + toolchange_settings.z_raise;
#if HAS_SOFTWARE_ENDSTOPS
NOMORE(current_position[Z_AXIS], soft_endstop[Z_AXIS].max);
#endif
if (!no_move) fast_line_to_current(Z_AXIS);
move_nozzle_servo(tmp_extruder);
#endif
if (DEBUGGING(LEVELING)) DEBUG_ECHOLNPAIR("Offset Tool XY by { ", xdiff, ", ", ydiff, ", ", zdiff, " }");
// The newly-selected extruder XY is actually at...
current_position[X_AXIS] += xdiff;
current_position[Y_AXIS] += ydiff;
current_position[Z_AXIS] += zdiff;
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// Set the new active extruder if not already done in tool specific function above
active_extruder = tmp_extruder;
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// Tell the planner the new "current position"
sync_plan_position();
#if ENABLED(DELTA)
//LOOP_XYZ(i) update_software_endstops(i); // or modify the constrain function
const bool safe_to_move = current_position[Z_AXIS] < delta_clip_start_height - 1;
#else
constexpr bool safe_to_move = true;
#endif
// Return to position and lower again
if (safe_to_move && !no_move && IsRunning()) {
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#if ENABLED(SINGLENOZZLE)
#if FAN_COUNT > 0
singlenozzle_fan_speed[active_extruder] = thermalManager.fan_speed[0];
thermalManager.fan_speed[0] = singlenozzle_fan_speed[tmp_extruder];
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#endif
singlenozzle_temp[active_extruder] = thermalManager.temp_hotend[0].target;
if (singlenozzle_temp[tmp_extruder] && singlenozzle_temp[tmp_extruder] != singlenozzle_temp[active_extruder]) {
thermalManager.setTargetHotend(singlenozzle_temp[tmp_extruder], 0);
#if EITHER(ULTRA_LCD, EXTENSIBLE_UI)
thermalManager.set_heating_message(0);
#endif
(void)thermalManager.wait_for_hotend(0, false); // Wait for heating or cooling
}
active_extruder = tmp_extruder;
#endif
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#if ENABLED(TOOLCHANGE_FILAMENT_SWAP)
if (should_swap && !too_cold) {
#if ENABLED(ADVANCED_PAUSE_FEATURE)
do_pause_e_move(toolchange_settings.swap_length + TOOLCHANGE_FIL_EXTRA_PRIME, MMM_TO_MMS(toolchange_settings.prime_speed));
#else
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current_position[E_AXIS] += (toolchange_settings.swap_length + TOOLCHANGE_FIL_EXTRA_PRIME) / planner.e_factor[tmp_extruder];
planner.buffer_line(current_position, MMM_TO_MMS(toolchange_settings.prime_speed), tmp_extruder);
#endif
planner.synchronize();
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#if TOOLCHANGE_FIL_EXTRA_PRIME
planner.set_e_position_mm((destination[E_AXIS] = current_position[E_AXIS] = current_position[E_AXIS] - (TOOLCHANGE_FIL_EXTRA_PRIME)));
#endif
}
#endif
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// Prevent a move outside physical bounds
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#if ENABLED(MAGNETIC_SWITCHING_TOOLHEAD)
// If the original position is within tool store area, go to X origin at once
if (destination[Y_AXIS] < SWITCHING_TOOLHEAD_Y_POS + SWITCHING_TOOLHEAD_Y_CLEAR) {
current_position[X_AXIS] = 0;
planner.buffer_line(current_position, planner.settings.max_feedrate_mm_s[X_AXIS], active_extruder);
planner.synchronize();
}
#else
apply_motion_limits(destination);
#endif
// Should the nozzle move back to the old position?
if (can_move_away) {
#if ENABLED(TOOLCHANGE_NO_RETURN)
// Just move back down
if (DEBUGGING(LEVELING)) DEBUG_ECHOLNPGM("Move back Z only");
do_blocking_move_to_z(destination[Z_AXIS], planner.settings.max_feedrate_mm_s[Z_AXIS]);
#else
// Move back to the original (or adjusted) position
if (DEBUGGING(LEVELING)) DEBUG_POS("Move back", destination);
do_blocking_move_to(destination);
#endif
}
else if (DEBUGGING(LEVELING)) DEBUG_ECHOLNPGM("Move back skipped");
#if ENABLED(DUAL_X_CARRIAGE)
active_extruder_parked = false;
#endif
}
#if ENABLED(SWITCHING_NOZZLE)
else {
// Move back down. (Including when the new tool is higher.)
do_blocking_move_to_z(destination[Z_AXIS], planner.settings.max_feedrate_mm_s[Z_AXIS]);
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}
#endif
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#if ENABLED(PRUSA_MMU2)
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mmu2.tool_change(tmp_extruder);
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#endif
#if SWITCHING_NOZZLE_TWO_SERVOS
lower_nozzle(active_extruder);
#endif
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} // (tmp_extruder != active_extruder)
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planner.synchronize();
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#if ENABLED(EXT_SOLENOID) && DISABLED(PARKING_EXTRUDER)
disable_all_solenoids();
enable_solenoid_on_active_extruder();
#endif
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#if ENABLED(MK2_MULTIPLEXER)
if (tmp_extruder >= E_STEPPERS) return invalid_extruder_error(tmp_extruder);
select_multiplexed_stepper(tmp_extruder);
#endif
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#if DO_SWITCH_EXTRUDER
planner.synchronize();
move_extruder_servo(active_extruder);
#endif
#if HAS_FANMUX
fanmux_switch(active_extruder);
#endif
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#if HAS_LEVELING
// Restore leveling to re-establish the logical position
set_bed_leveling_enabled(leveling_was_active);
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#endif
SERIAL_ECHO_START();
SERIAL_ECHOLNPAIR(MSG_ACTIVE_EXTRUDER, int(active_extruder));
#endif // EXTRUDERS > 1
}