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Profile validator: slice belt printers with two cubes along the belt

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The slice check (-s) prints one 10 mm cube per printer with a height
range on filament 2 and expects the filament change to fire.  Since
#16236 a belt object's slicing Z starts at the belt below its leading
end, well below the part's first printed layer, so the range 4-10 falls
into the empty lead-in and filament 2 is never used: every belt printer
reported "the filament change never fired" and the Slice check job on
belt-printer went red.  A height range in slicing Z does not map onto a
part on a belt in any case.  Slice belt printers with two cubes one
behind the other along the belt, the second on filament 2, which gives
the one plain T1 the check looks for.  Other printers are unchanged.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
This commit is contained in:
harrierpigeon
2026-10-07 14:11:15 -05:00
co-authored by Claude Fable 5.1
parent ef6d4a71de
commit 006a9377c3
1 changed files with 21 additions and 8 deletions
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src/dev-utils/OrcaSlicer_profile_validator.cpp
+21 -8
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@@ -202,6 +202,7 @@ Vec2d place_wipe_tower(DynamicPrintConfig &cfg, const Vec2d &center)
std::string slice_two_color_cube_and_export(DynamicPrintConfig cfg, bool is_bbl, bool by_object)
{
const Vec2d center = printable_area_center(cfg);
const bool belt = cfg.opt_bool("belt_printer");
std::vector<Vec2d> cube_mins;
if (by_object) {
// By-object printing fires the hook only without a wipe tower, and rules out clumping detection and
@@ -212,6 +213,12 @@ std::string slice_two_color_cube_and_export(DynamicPrintConfig cfg, bool is_bbl,
cfg.set_key_value("timelapse_type", new ConfigOptionEnum<TimelapseType>(tlTraditional));
cfg.set_key_value("skirt_loops", new ConfigOptionInt(0));
cube_mins = {center + Vec2d(-20., -5.), center + Vec2d(10., -5.)};
} else if (belt) {
// A belt object's slicing Z starts at the belt below its leading end, well below its first
// printed layer, so a height range in slicing Z does not map onto the part. Two cubes one
// behind the other along the belt, the second on filament 2, give the one filament change
// instead (the purge prism is an object the GUI adds, so there is no tower to place).
cube_mins = {center - Vec2d(5., 15.), center + Vec2d(-5., 5.)};
} else {
// Clumping detection changes the tower footprint, so turn it on before placing the tower.
if (!cfg.opt_string("wrapping_detection_gcode").empty())
@@ -229,14 +236,20 @@ std::string slice_two_color_cube_and_export(DynamicPrintConfig cfg, bool is_bbl,
obj->name = "cube"; // populates [input_filename_base] the way a loaded model does
obj->add_volume(m);
obj->add_instance();
// Filament 2 is used only above z=4, so the upper layers carry a single filament change.
DynamicPrintConfig range_config;
range_config.set_key_value("extruder", new ConfigOptionInt(2));
// Every range must carry a layer_height; use the process's own so a fine nozzle (e.g. 0.15 mm
// printing ~0.1 mm layers) isn't forced to a height its extrusion width can't support - that
// trips Flow::with_spacing.
range_config.set_key_value("layer_height", new ConfigOptionFloat(cfg.opt_float("layer_height")));
obj->layer_config_ranges[{4.0, 10.0}].assign_config(std::move(range_config));
if (belt && !by_object) {
// The second cube along the belt is on filament 2 (see cube_mins above).
if (&cube_min == &cube_mins.back())
obj->config.set_key_value("extruder", new ConfigOptionInt(2));
} else {
// Filament 2 is used only above z=4, so the upper layers carry a single filament change.
DynamicPrintConfig range_config;
range_config.set_key_value("extruder", new ConfigOptionInt(2));
// Every range must carry a layer_height; use the process's own so a fine nozzle (e.g. 0.15 mm
// printing ~0.1 mm layers) isn't forced to a height its extrusion width can't support - that
// trips Flow::with_spacing.
range_config.set_key_value("layer_height", new ConfigOptionFloat(cfg.opt_float("layer_height")));
obj->layer_config_ranges[{4.0, 10.0}].assign_config(std::move(range_config));
}
obj->ensure_on_bed();
print.auto_assign_extruders(obj);
}