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Fix: tpu reverse travel from top of nozzle_change 

jira: none
Change-Id: I23b2867775818a07289b7d93a7d711e25b6f131a
This commit is contained in:
jiangkai.zhao 2025-03-26 09:39:42 +08:00 committed by lane.wei
parent 3aeeea05f7
commit a564ee6a0a
1 changed files with 2 additions and 3 deletions
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5
src/libslic3r/GCode/WipeTower.cpp
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@ -3137,14 +3137,13 @@ WipeTower::NozzleChangeResult WipeTower::nozzle_change_new(int old_filament_id,
NozzleChangeResult result;
if (is_need_reverse_travel(m_current_tool)) {
bool left_to_right = !m_left_to_right;
int tpu_line_count = nozzle_change_line_count - 1 ; // nozzle_change_line_count / 2 round up
if (tpu_line_count <= 0) tpu_line_count = 1;
int tpu_line_count = nozzle_change_line_count ;
nozzle_change_speed *= 2; // due to nozzle change 2 perimeter
float need_reverse_travel_dis = m_filpar[m_current_tool].ramming_travel_time * nozzle_change_speed/60.f;
float real_travel_dis = tpu_line_count * (xr - xl - 2 * m_perimeter_width);
if (real_travel_dis < need_reverse_travel_dis)
nozzle_change_speed *= real_travel_dis / need_reverse_travel_dis;
writer.travel(writer.x(), writer.y() - m_nozzle_change_perimeter_width);
writer.travel(writer.x(), writer.y() + m_nozzle_change_perimeter_width);
for (int i = 0; true; ++i) {
need_reverse_travel_dis -= (xr - xl - 2 * m_perimeter_width);