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WipeTower: linear advance is disabled immediately before ramming, not before moving to the wipe tower

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Linear advance is reset by filament start gcode after a toolchange. However, not all moves to the wipe tower
end with a toolchange (brim, empty grid) and it would therefore disable linear advance until the next toolchange
This should solve https://github.com/prusa3d/PrusaSlicer/issues/2770
This commit is contained in:
Lukas Matena 2019-08-16 00:20:51 +02:00
parent 15744f021a
commit 0f32223ba0
2 changed files with 7 additions and 3 deletions
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3
src/libslic3r/GCode.cpp
View file

@ -197,9 +197,6 @@ std::string WipeTowerIntegration::append_tcr(GCode &gcodegen, const WipeTower::T
std::string tcr_rotated_gcode = post_process_wipe_tower_moves(tcr, wipe_tower_offset, wipe_tower_rotation); std::string tcr_rotated_gcode = post_process_wipe_tower_moves(tcr, wipe_tower_offset, wipe_tower_rotation);
// Disable linear advance for the wipe tower operations.
gcode += (gcodegen.config().gcode_flavor == gcfRepRap ? std::string("M572 D0 S0\n") : std::string("M900 K0\n"));
if (!tcr.priming) { if (!tcr.priming) {
// Move over the wipe tower. // Move over the wipe tower.
// Retract for a tool change, using the toolchange retract value and setting the priming extra length. // Retract for a tool change, using the toolchange retract value and setting the priming extra length.

7
src/libslic3r/GCode/WipeTower.cpp
View file

@ -113,6 +113,11 @@ public:
return (*this); return (*this);
} }
WipeTowerWriter& disable_linear_advance() {
m_gcode += (m_gcode_flavor == gcfRepRap ? std::string("M572 D0 S0\n") : std::string("M900 K0\n"));
return *this;
}
// Suppress / resume G-code preview in Slic3r. Slic3r will have difficulty to differentiate the various // Suppress / resume G-code preview in Slic3r. Slic3r will have difficulty to differentiate the various
// filament loading and cooling moves from normal extrusion moves. Therefore the writer // filament loading and cooling moves from normal extrusion moves. Therefore the writer
// is asked to suppres output of some lines, which look like extrusions. // is asked to suppres output of some lines, which look like extrusions.
@ -818,6 +823,8 @@ void WipeTower::toolchange_Unload(
} }
} }
writer.disable_linear_advance();
// now the ramming itself: // now the ramming itself:
while (i < m_filpar[m_current_tool].ramming_speed.size()) while (i < m_filpar[m_current_tool].ramming_speed.size())
{ {