From 48a93e40fb2499832ea4dd61185c58912f6ef18a Mon Sep 17 00:00:00 2001 From: Vojtech Bubnik <bubnikv@gmail.com> Date: Thu, 15 Apr 2021 16:29:30 +0200 Subject: [PATCH] After issuing the color change custom G-code, which is most likely just M600, reset the internal retract counter, so that a retract will happen after the firmware returns from M600 to the initial position. Fixes "Blobs on print after manual color change #6362" --- src/libslic3r/GCode.cpp | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/src/libslic3r/GCode.cpp b/src/libslic3r/GCode.cpp index 0e2b1a57f..a79940810 100644 --- a/src/libslic3r/GCode.cpp +++ b/src/libslic3r/GCode.cpp @@ -1778,6 +1778,10 @@ namespace ProcessLayer else { gcode += gcodegen.placeholder_parser_process("color_change_gcode", config.color_change_gcode, current_extruder_id); gcode += "\n"; + //FIXME Tell G-code writer that M600 filled the extruder, thus the G-code writer shall reset the extruder to unretracted state after + // return from M600. Thus the G-code generated by the following line is ignored. + // see GH issue #6362 + gcodegen.writer().unretract(); } } else {