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Feature: Retract amount after wipe (#11015)

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Co-authored-by: Ian Bassi <ian.bassi@outlook.com>
This commit is contained in:
Valerii Bokhan
2026-07-14 19:42:16 +02:00
committed by GitHub
parent 3c0338f462
commit 50768e0716
10 changed files with 293 additions and 45 deletions
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61
src/libslic3r/GCode.cpp
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@@ -441,22 +441,30 @@ static std::vector<Vec2d> get_path_of_change_filament(const Print& print)
// Declare & initialize retraction lengths
double retraction_length_remaining = 0,
retractionBeforeWipe = 0,
retractionDuringWipe = 0;
retraction_length_before_wipe = 0,
retraction_length_during_wipe = 0,
retraction_length_after_wipe = 0;
// initialise the remaining retraction amount with the full retraction amount.
retraction_length_remaining = toolchange ? extruder->retract_length_toolchange() : extruder->retraction_length();
// Initialise the remaining retraction amount with the full retraction amount.
retraction_length_remaining = toolchange ?
extruder->retract_length_toolchange() : extruder->retraction_length();
// nothing to retract - return early
if(retraction_length_remaining <=EPSILON) return {0.f,0.f};
// Nothing to retract - return early
if (retraction_length_remaining <= EPSILON)
return { 0.f, 0.f, 0.f };
// calculate retraction before wipe distance from the user setting. Keep adding to this variable any excess retraction needed
// to be performed before the wipe.
retractionBeforeWipe = retraction_length_remaining * extruder->retract_before_wipe();
retraction_length_remaining -= retractionBeforeWipe; // subtract it from the remaining retraction length
// all of the retraction is to be done before the wipe
if(retraction_length_remaining <=EPSILON) return {retractionBeforeWipe,0.f};
// Calculate retraction before and after wipe distances from the user setting.
// Keep adding to the for retraction before wipe variable any excess retraction
// needed to be performed before the wipe.
retraction_length_before_wipe = retraction_length_remaining * extruder->retract_before_wipe();
retraction_length_after_wipe = retraction_length_remaining * extruder->retract_after_wipe();
// Subtract it from the remaining retraction length
retraction_length_remaining -= retraction_length_before_wipe + retraction_length_after_wipe;
// All of the retraction is to be done before the wipe
if (retraction_length_remaining <= EPSILON)
return { retraction_length_before_wipe, 0., retraction_length_after_wipe };
// Calculate wipe speed
// Orca: resolve the travel_speed slot via the Print-side per-layer resolver; the writer's
@@ -471,18 +479,25 @@ static std::vector<Vec2d> get_path_of_change_filament(const Print& print)
double wipe_path_length = std::min(wipe_path.length(), wipe_dist);
// Calculate the maximum retraction amount during wipe
retractionDuringWipe = config.retraction_speed.get_at(extruder_id) * unscale_(wipe_path_length) / wipe_speed;
// If the maximum retraction amount during wipe is too small, return 0 and retract everything prior to the wipe.
if(retractionDuringWipe <= EPSILON) return {retractionBeforeWipe,0.f};
retraction_length_during_wipe = config.retraction_speed.get_at(extruder_id) *
unscale_(wipe_path_length) / wipe_speed;
// If the maximum retraction amount during wipe is too small,
// disable wipe-time retraction and leave any remaining retract amount
// to the subsequent standard retract flow.
if (retraction_length_during_wipe <= EPSILON)
return { retraction_length_before_wipe, 0., retraction_length_after_wipe };
// If the maximum retraction amount during wipe is greater than any remaining retraction length
// return the remaining retraction length to be retracted during the wipe
if (retractionDuringWipe - retraction_length_remaining > EPSILON) return {retractionBeforeWipe,retraction_length_remaining};
if (retraction_length_during_wipe - retraction_length_remaining > EPSILON)
return { retraction_length_before_wipe, retraction_length_remaining, retraction_length_after_wipe };
// We will always proceed with incrementing the retraction amount before wiping with the difference
// and return the maximum allowed wipe amount to be retracted during the wipe move
retractionBeforeWipe += retraction_length_remaining - retractionDuringWipe;
return {retractionBeforeWipe, retractionDuringWipe};
retraction_length_before_wipe += retraction_length_remaining - retraction_length_during_wipe;
return { retraction_length_before_wipe, retraction_length_during_wipe, retraction_length_after_wipe };
}
std::string transform_gcode(const std::string &gcode, Vec2f pos, const Vec2f &translation, float angle)
@@ -8507,8 +8522,12 @@ std::string GCode::retract(bool toolchange, bool is_last_retraction, LiftType li
// wipe (if it's enabled for this extruder and we have a stored wipe path and no-zero wipe distance)
if (FILAMENT_CONFIG(wipe) && m_wipe.has_path() && scale_(FILAMENT_CONFIG(wipe_distance)) > SCALED_EPSILON) {
Wipe::RetractionValues wipeRetractions = m_wipe.calculateWipeRetractionLengths(*this, toolchange);
gcode += toolchange ? m_writer.retract_for_toolchange(true,wipeRetractions.retractLengthBeforeWipe) : m_writer.retract(true, wipeRetractions.retractLengthBeforeWipe);
gcode += m_wipe.wipe(*this,wipeRetractions.retractLengthDuringWipe, toolchange, is_last_retraction);
gcode += toolchange ? m_writer.retract_for_toolchange(true, wipeRetractions.retraction_length_before_wipe) :
m_writer.retract(true, wipeRetractions.retraction_length_before_wipe);
gcode += m_wipe.wipe(*this, wipeRetractions.retraction_length_during_wipe, toolchange, is_last_retraction);
// Orca: wipeRetractions.retraction_length_after_wipe is not being used explicitly,
// the remaining retraction after wipe is handled by the subsequent m_writer.retract() call
}
/* The parent class will decide whether we need to perform an actual retraction