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@ -557,20 +557,22 @@ static uint8_t target_extruder;
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baricuda_e_to_p_pressure = 0;
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#endif
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#if ENABLED(FWRETRACT)
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bool autoretract_enabled = false;
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bool retracted[EXTRUDERS] = { false };
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bool retracted_swap[EXTRUDERS] = { false };
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float retract_length = RETRACT_LENGTH;
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float retract_length_swap = RETRACT_LENGTH_SWAP;
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float retract_feedrate_mm_s = RETRACT_FEEDRATE;
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float retract_zlift = RETRACT_ZLIFT;
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float retract_recover_length = RETRACT_RECOVER_LENGTH;
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float retract_recover_length_swap = RETRACT_RECOVER_LENGTH_SWAP;
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float retract_recover_feedrate_mm_s = RETRACT_RECOVER_FEEDRATE;
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#if ENABLED(FWRETRACT) // Initialized by settings.load()...
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bool autoretract_enabled, // M209 S - Autoretract switch
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retracted[EXTRUDERS] = { false }; // Which extruders are currently retracted
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float retract_length, // M207 S - G10 Retract length
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retract_feedrate_mm_s, // M207 F - G10 Retract feedrate
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retract_zlift, // M207 Z - G10 Retract hop size
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retract_recover_length, // M208 S - G11 Recover length
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retract_recover_feedrate_mm_s, // M208 F - G11 Recover feedrate
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swap_retract_length, // M207 W - G10 Swap Retract length
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swap_retract_recover_length, // M208 W - G11 Swap Recover length
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swap_retract_recover_feedrate_mm_s; // M208 R - G11 Swap Recover feedrate
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#if EXTRUDERS > 1
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bool retracted_swap[EXTRUDERS] = { false }; // Which extruders are swap-retracted
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#else
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constexpr bool retracted_swap[1] = { false };
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#endif
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#endif // FWRETRACT
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#if HAS_POWER_SWITCH
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@ -3100,55 +3102,126 @@ static void homeaxis(const AxisEnum axis) {
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#if ENABLED(FWRETRACT)
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void retract(const bool retracting, const bool swapping = false) {
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/**
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* Retract or recover according to firmware settings
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*
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* This function handles retract/recover moves for G10 and G11,
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* plus auto-retract moves sent from G0/G1 when E-only moves are done.
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*
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* To simplify the logic, doubled retract/recover moves are ignored.
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*
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* Note: Z lift is done transparently to the planner. Aborting
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* a print between G10 and G11 may corrupt the Z position.
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*
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* Note: Auto-retract will apply the set Z hop in addition to any Z hop
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* included in the G-code. Use M207 Z0 to to prevent double hop.
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*/
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void retract(const bool retracting
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#if EXTRUDERS > 1
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, bool swapping = false
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#endif
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) {
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static float hop_height, // Remember where the Z height started
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hop_amount = 0.0; // Total amount lifted, for use in recover
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static float hop_height;
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// Simply never allow two retracts or recovers in a row
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if (retracted[active_extruder] == retracting) return;
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if (retracting == retracted[active_extruder]) return;
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#if EXTRUDERS < 2
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bool swapping = false;
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#endif
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if (!retracting) swapping = retracted_swap[active_extruder];
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/* // debugging
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SERIAL_ECHOLNPAIR("retracting ", retracting);
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SERIAL_ECHOLNPAIR("swapping ", swapping);
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SERIAL_ECHOLNPAIR("active extruder ", active_extruder);
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for (uint8_t i = 0; i < EXTRUDERS; ++i) {
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SERIAL_ECHOPAIR("retracted[", i);
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SERIAL_ECHOLNPAIR("] ", retracted[i]);
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SERIAL_ECHOPAIR("retracted_swap[", i);
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SERIAL_ECHOLNPAIR("] ", retracted_swap[i]);
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}
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SERIAL_ECHOLNPAIR("current_position[z] ", current_position[Z_AXIS]);
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SERIAL_ECHOLNPAIR("hop_amount ", hop_amount);
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//*/
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const bool has_zhop = retract_zlift > 0.01; // Is there a hop set?
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const float old_feedrate_mm_s = feedrate_mm_s;
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const int16_t old_flow = flow_percentage[active_extruder];
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// Don't apply flow multiplication to retract/recover
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flow_percentage[active_extruder] = 100;
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// The current position will be the destination for E and Z moves
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set_destination_to_current();
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if (retracting) {
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// Remember the Z height since G-code may include its own Z-hop
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// For best results turn off Z hop if G-code already includes it
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hop_height = destination[Z_AXIS];
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// Retract by moving from a faux E position back to the current E position
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feedrate_mm_s = retract_feedrate_mm_s;
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current_position[E_AXIS] += (swapping ? retract_length_swap : retract_length) / volumetric_multiplier[active_extruder];
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current_position[E_AXIS] += (swapping ? swap_retract_length : retract_length) / volumetric_multiplier[active_extruder];
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sync_plan_position_e();
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prepare_move_to_destination();
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if (retract_zlift > 0.01) {
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hop_height = current_position[Z_AXIS];
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// Pretend current position is lower
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current_position[Z_AXIS] -= retract_zlift;
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SYNC_PLAN_POSITION_KINEMATIC();
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// Raise up to the old current_position
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prepare_move_to_destination();
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// Is a Z hop set, and has the hop not yet been done?
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if (has_zhop) {
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hop_amount += retract_zlift; // Carriage is raised for retraction hop
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current_position[Z_AXIS] -= retract_zlift; // Pretend current pos is lower. Next move raises Z.
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SYNC_PLAN_POSITION_KINEMATIC(); // Set the planner to the new position
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prepare_move_to_destination(); // Raise up to the old current pos
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}
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}
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else {
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// If the height hasn't been lowered, undo the Z hop
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if (retract_zlift > 0.01 && hop_height <= current_position[Z_AXIS]) {
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// Pretend current position is higher. Z will lower on the next move
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current_position[Z_AXIS] += retract_zlift;
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SYNC_PLAN_POSITION_KINEMATIC();
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// Lower Z
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prepare_move_to_destination();
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// If a hop was done and Z hasn't changed, undo the Z hop
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if (hop_amount && NEAR(hop_height, destination[Z_AXIS])) {
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current_position[Z_AXIS] += hop_amount; // Pretend current pos is higher. Next move lowers Z.
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SYNC_PLAN_POSITION_KINEMATIC(); // Set the planner to the new position
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prepare_move_to_destination(); // Lower to the old current pos
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hop_amount = 0.0;
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}
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feedrate_mm_s = retract_recover_feedrate_mm_s;
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const float move_e = swapping ? retract_length_swap + retract_recover_length_swap : retract_length + retract_recover_length;
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// A retract multiplier has been added here to get faster swap recovery
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feedrate_mm_s = swapping ? swap_retract_recover_feedrate_mm_s : retract_recover_feedrate_mm_s;
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const float move_e = swapping ? swap_retract_length + swap_retract_recover_length : retract_length + retract_recover_length;
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current_position[E_AXIS] -= move_e / volumetric_multiplier[active_extruder];
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sync_plan_position_e();
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// Recover E
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prepare_move_to_destination();
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prepare_move_to_destination(); // Recover E
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}
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// Restore flow and feedrate
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flow_percentage[active_extruder] = old_flow;
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feedrate_mm_s = old_feedrate_mm_s;
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// The active extruder is now retracted or recovered
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retracted[active_extruder] = retracting;
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// If swap retract/recover then update the retracted_swap flag too
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#if EXTRUDERS > 1
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if (swapping) retracted_swap[active_extruder] = retracting;
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#endif
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/* // debugging
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SERIAL_ECHOLNPAIR("retracting ", retracting);
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SERIAL_ECHOLNPAIR("swapping ", swapping);
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SERIAL_ECHOLNPAIR("active_extruder ", active_extruder);
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for (uint8_t i = 0; i < EXTRUDERS; ++i) {
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SERIAL_ECHOPAIR("retracted[", i);
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SERIAL_ECHOLNPAIR("] ", retracted[i]);
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SERIAL_ECHOPAIR("retracted_swap[", i);
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SERIAL_ECHOLNPAIR("] ", retracted_swap[i]);
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}
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SERIAL_ECHOLNPAIR("current_position[z] ", current_position[Z_AXIS]);
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SERIAL_ECHOLNPAIR("hop_amount ", hop_amount);
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//*/
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} // retract()
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#endif // FWRETRACT
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@ -3277,18 +3350,18 @@ inline void gcode_G0_G1(
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gcode_get_destination(); // For X Y Z E F
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#if ENABLED(FWRETRACT)
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if (autoretract_enabled && !(parser.seen('X') || parser.seen('Y') || parser.seen('Z')) && parser.seen('E')) {
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if (MIN_AUTORETRACT <= MAX_AUTORETRACT) {
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// When M209 Autoretract is enabled, convert E-only moves to firmware retract/recover moves
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if (autoretract_enabled && parser.seen('E') && !(parser.seen('X') || parser.seen('Y') || parser.seen('Z'))) {
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const float echange = destination[E_AXIS] - current_position[E_AXIS];
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// Is this move an attempt to retract or recover?
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if ((echange < -(MIN_RETRACT) && !retracted[active_extruder]) || (echange > MIN_RETRACT && retracted[active_extruder])) {
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current_position[E_AXIS] = destination[E_AXIS]; // hide the slicer-generated retract/recover from calculations
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// Is this a retract or recover move?
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if (WITHIN(FABS(echange), MIN_AUTORETRACT, MAX_AUTORETRACT) && retracted[active_extruder] == (echange > 0.0)) {
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current_position[E_AXIS] = destination[E_AXIS]; // Hide a G1-based retract/recover from calculations
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sync_plan_position_e(); // AND from the planner
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retract(!retracted[active_extruder]);
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return;
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return retract(echange < 0.0); // Firmware-based retract/recover (double-retract ignored)
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}
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}
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}
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#endif // FWRETRACT
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#if IS_SCARA
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@ -8486,7 +8559,7 @@ inline void gcode_M205() {
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* M207: Set firmware retraction values
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*
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* S[+units] retract_length
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* W[+units] retract_length_swap (multi-extruder)
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* W[+units] swap_retract_length (multi-extruder)
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* F[units/min] retract_feedrate_mm_s
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* Z[units] retract_zlift
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*/
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@ -8494,24 +8567,22 @@ inline void gcode_M205() {
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if (parser.seen('S')) retract_length = parser.value_axis_units(E_AXIS);
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if (parser.seen('F')) retract_feedrate_mm_s = MMM_TO_MMS(parser.value_axis_units(E_AXIS));
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if (parser.seen('Z')) retract_zlift = parser.value_linear_units();
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#if EXTRUDERS > 1
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if (parser.seen('W')) retract_length_swap = parser.value_axis_units(E_AXIS);
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#endif
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if (parser.seen('W')) swap_retract_length = parser.value_axis_units(E_AXIS);
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}
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/**
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* M208: Set firmware un-retraction values
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*
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* S[+units] retract_recover_length (in addition to M207 S*)
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* W[+units] retract_recover_length_swap (multi-extruder)
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* W[+units] swap_retract_recover_length (multi-extruder)
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* F[units/min] retract_recover_feedrate_mm_s
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* R[units/min] swap_retract_recover_feedrate_mm_s
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*/
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inline void gcode_M208() {
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if (parser.seen('S')) retract_recover_length = parser.value_axis_units(E_AXIS);
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if (parser.seen('F')) retract_recover_feedrate_mm_s = MMM_TO_MMS(parser.value_axis_units(E_AXIS));
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#if EXTRUDERS > 1
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if (parser.seen('W')) retract_recover_length_swap = parser.value_axis_units(E_AXIS);
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#endif
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if (parser.seen('R')) swap_retract_recover_feedrate_mm_s = MMM_TO_MMS(parser.value_axis_units(E_AXIS));
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if (parser.seen('W')) swap_retract_recover_length = parser.value_axis_units(E_AXIS);
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}
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/**
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@ -8520,9 +8591,11 @@ inline void gcode_M205() {
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* moves will be classified as retraction.
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*/
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inline void gcode_M209() {
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if (MIN_AUTORETRACT <= MAX_AUTORETRACT) {
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if (parser.seen('S')) {
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autoretract_enabled = parser.value_bool();
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for (int i = 0; i < EXTRUDERS; i++) retracted[i] = false;
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for (uint8_t i = 0; i < EXTRUDERS; i++) retracted[i] = false;
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}
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}
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}
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@ -10987,7 +11060,7 @@ void process_next_command() {
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gcode_M208();
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break;
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case 209: // M209: Turn Automatic Retract Detection on/off
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gcode_M209();
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if (MIN_AUTORETRACT <= MAX_AUTORETRACT) gcode_M209();
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break;
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#endif // FWRETRACT
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Scott Lahteine
7 years ago
committed by