Fix Linux/Wayland crash on Preview tab at startup

* Ignore Jerk values if using JD

* add flavor check

resources/data/hints.ini

@@ -94,8 +94,8 @@ text = Switch workspaces\nYou can switch between <b>Prepare</b> and <b>Preview</
 [hint:How to use keyboard shortcuts]
 text = How to use keyboard shortcuts\nDid you know that Orca Slicer offers a wide range of keyboard shortcuts and 3D scene operations?
 
-[hint:Reverse on odd]
+[hint:Reverse on even]
-text = Reverse on odd\nDid you know that <b>Reverse on odd</b> feature can significantly improve the surface quality of your overhangs?
+text = Reverse on even\nDid you know that <b>Reverse on even</b> feature can significantly improve the surface quality of your overhangs? However, it can cause wall inconsistencies so use carefully!
 
 [hint:Cut Tool]
 text = Cut Tool\nDid you know that you can cut a model at any angle and position with the cutting tool?

resources/profiles/Anet/machine/Anet A8 Plus 0.4 nozzle.json

@@ -1,237 +0,0 @@
-{
-	"type": "machine",
-	"name": "Anet A8 Plus 0.4 nozzle",
-	"inherits": "",
-	"from": "User",
-	"adaptive_bed_mesh_margin": "0",
-	"auxiliary_fan": "0",
-	"bbl_use_printhost": "0",
-	"bed_custom_model": "",
-	"bed_custom_texture": "",
-	"bed_exclude_area": [
-		"0x0"
-	],
-	"bed_mesh_max": "99999,99999",
-	"bed_mesh_min": "-99999,-99999",
-	"bed_mesh_probe_distance": "50,50",
-	"before_layer_change_gcode": ";BEFORE_LAYER_CHANGE\n;[layer_z]\nG92 E0\n",
-	"best_object_pos": "0.5,0.5",
-	"change_extrusion_role_gcode": "",
-	"change_filament_gcode": "M600",
-	"cooling_tube_length": "5",
-	"cooling_tube_retraction": "91.5",
-	"default_bed_type": "",
-	"default_filament_profile": [
-		"Anycubic Generic PLA"
-	],
-	"default_print_profile": "0.20mm Standard @Anycubic 4MaxPro2",
-	"deretraction_speed": [
-		"25"
-	],
-	"disable_m73": "0",
-	"emit_machine_limits_to_gcode": "1",
-	"enable_filament_ramming": "1",
-	"enable_long_retraction_when_cut": "0",
-	"extra_loading_move": "-2",
-	"extruder_clearance_height_to_lid": "140",
-	"extruder_clearance_height_to_rod": "36",
-	"extruder_clearance_radius": "65",
-	"extruder_colour": [
-		"#018001"
-	],
-	"extruder_offset": [
-		"0x0"
-	],
-	"fan_kickstart": "0",
-	"fan_speedup_overhangs": "1",
-	"fan_speedup_time": "0",
-	"gcode_flavor": "marlin",
-	"head_wrap_detect_zone": [],
-	"high_current_on_filament_swap": "0",
-	"host_type": "octoprint",
-	"layer_change_gcode": ";AFTER_LAYER_CHANGE\n;[layer_z]",
-	"long_retractions_when_cut": [
-		"0"
-	],
-	"machine_end_gcode": "M104 S0 ; turn off extruder heating\nM140 S0 ; turn off bed heating\nM107 ; turn off fans\nG91 ; relative positioning\nG0 Z+0.5 ; move Z up a tiny bit\nG90 ; absolute positioning\nG0 X135 Y105 F{machine_max_speed_x[0]*60} ; move extruder to center position\nG0 Z190.5 F{machine_max_speed_z[0]*60} ; lower the plattform to Z min\nM84 ; steppers off\nG90 ; absolute positioning\n",
-	"machine_load_filament_time": "0",
-	"machine_max_acceleration_e": [
-		"5000",
-		"5000"
-	],
-	"machine_max_acceleration_extruding": [
-		"1250",
-		"1250"
-	],
-	"machine_max_acceleration_retracting": [
-		"1250",
-		"1250"
-	],
-	"machine_max_acceleration_travel": [
-		"1500",
-		"1500"
-	],
-	"machine_max_acceleration_x": [
-		"1000",
-		"900"
-	],
-	"machine_max_acceleration_y": [
-		"1000",
-		"900"
-	],
-	"machine_max_acceleration_z": [
-		"1000",
-		"100"
-	],
-	"machine_max_jerk_e": [
-		"5",
-		"5"
-	],
-	"machine_max_jerk_x": [
-		"6",
-		"6"
-	],
-	"machine_max_jerk_y": [
-		"6",
-		"6"
-	],
-	"machine_max_jerk_z": [
-		"0.2",
-		"0.2"
-	],
-	"machine_max_junction_deviation": [
-		"0.10",
-		"0"
-	],
-	"machine_max_speed_e": [
-		"120",
-		"120"
-	],
-	"machine_max_speed_x": [
-		"200",
-		"200"
-	],
-	"machine_max_speed_y": [
-		"200",
-		"200"
-	],
-	"machine_max_speed_z": [
-		"64",
-		"16"
-	],
-	"machine_min_extruding_rate": [
-		"0",
-		"0"
-	],
-	"machine_min_travel_rate": [
-		"0",
-		"0"
-	],
-	"machine_pause_gcode": "M601",
-	"machine_start_gcode": "G21 ; metric values\nG90 ; absolute positioning\nM82 ; set extruder to absolute mode\nM140 S[first_layer_bed_temperature] ; set bed temp\nG28 X0 Y0 ; home X and Y\nG28 Z0 ; home Z\nG1 Z30 F{machine_max_speed_z[0]*60} ; move Z a bit down to not blow on the bed edge while heating\nG1 X10 F3900 ; let some space on x to prevent the filament cooling exhaust from beeing blocked by the servo motor\nM190 S[bed_temperature_initial_layer_single] ; wait for bed temp\nM104 S[nozzle_temperature_initial_layer] ; set extruder temp\nM106 S80 ; turn on fan to prevent air nozzle melt while heating up\nM109 S[nozzle_temperature_initial_layer] ; wait for extruder temp\nM107 ; start with the fan off\nG28 X0 ; goto X home again\nG92 E0 ; zero the extruded length\nG1 Z0.2 F360 ; move plattform upwards\n; extrude material next to the plattform (comment or remove following lines to disable)\nG1 F180 E20 ; extrude some material next to the plattform\nG92 E0 ; zero the extruded length\nG1 E-[retraction_length] F{retraction_speed[0]*60} ; do a filament retract\nG92 E0 ; zero the extruded length again\nG1 X5 F3900 ; move sideways to get rid of that string\nG1 E[retraction_length] F{retraction_speed[0]*60} ; do a filament deretract with retract parameters\nG92 E0 ; zero the extruded length again\n; draw intro line (comment or remove following lines to disable)\nG1 X30 E5 F700 ; draw intro line\nG92 E0 ; zero the extruded length\nG1 E-[retraction_length] F{retraction_speed[0]*60} ; do a filament retract\nG1 X40 Z2.0 ; move away from the introline\nG92 E0 ; zero the extruded length again\nG1 E[retraction_length] F{retraction_speed[0]*60} ; do a filament deretract with retract parameters\n; end of intro line code\nM117 Printing...\nG5",
-	"machine_tool_change_time": "0",
-	"machine_unload_filament_time": "0",
-	"manual_filament_change": "0",
-	"max_layer_height": [
-		"0.3"
-	],
-	"max_resonance_avoidance_speed": "120",
-	"min_layer_height": [
-		"0.07"
-	],
-	"min_resonance_avoidance_speed": "70",
-	"nozzle_diameter": [
-		"0.4"
-	],
-	"nozzle_height": "2.5",
-	"nozzle_hrc": "0",
-	"nozzle_type": "undefine",
-	"nozzle_volume": "0",
-	"parking_pos_retraction": "92",
-	"pellet_modded_printer": "0",
-	"preferred_orientation": "0",
-	"printable_area": [
-		"0x0",
-		"300x0",
-		"300x300",
-		"0x300"
-	],
-	"printable_height": "350",
-	"printer_model": "Anet A8 Plus",
-	"printer_notes": "",
-	"printer_settings_id": "Anet A8 Plus 0.4 nozzle",
-	"printer_structure": "undefine",
-	"printer_technology": "FFF",
-	"printer_variant": "0.4",
-	"printhost_authorization_type": "key",
-	"printhost_ssl_ignore_revoke": "0",
-	"printing_by_object_gcode": "",
-	"purge_in_prime_tower": "1",
-	"resonance_avoidance": "0",
-	"retract_before_wipe": [
-		"0%"
-	],
-	"retract_length_toolchange": [
-		"10"
-	],
-	"retract_lift_above": [
-		"0"
-	],
-	"retract_lift_below": [
-		"0"
-	],
-	"retract_lift_enforce": [
-		"All Surfaces"
-	],
-	"retract_restart_extra": [
-		"0"
-	],
-	"retract_restart_extra_toolchange": [
-		"0"
-	],
-	"retract_when_changing_layer": [
-		"1"
-	],
-	"retraction_distances_when_cut": [
-		"18"
-	],
-	"retraction_length": [
-		"2.5"
-	],
-	"retraction_minimum_travel": [
-		"2"
-	],
-	"retraction_speed": [
-		"35"
-	],
-	"scan_first_layer": "0",
-	"silent_mode": "0",
-	"single_extruder_multi_material": "1",
-	"support_air_filtration": "1",
-	"support_chamber_temp_control": "1",
-	"support_multi_bed_types": "0",
-	"template_custom_gcode": "",
-	"thumbnails": "48x48/PNG,300x300/PNG",
-	"thumbnails_format": "PNG",
-	"time_cost": "0",
-	"time_lapse_gcode": "",
-	"travel_slope": [
-		"3"
-	],
-	"upward_compatible_machine": [],
-	"use_firmware_retraction": "0",
-	"use_relative_e_distances": "1",
-	"wipe": [
-		"1"
-	],
-	"wipe_distance": [
-		"1"
-	],
-	"z_hop": [
-		"0.4"
-	],
-	"z_hop_types": [
-		"Normal Lift"
-	],
-	"z_offset": "0"
-}

src/libslic3r/GCode/CoolingBuffer.cpp

@@ -719,6 +719,9 @@ std::string CoolingBuffer::apply_layer_cooldown(
     // Second generate the adjusted G-code.
     std::string new_gcode;
     new_gcode.reserve(gcode.size() * 2);
+    // ORCA: per-printer minimum non-zero fan PWM. Applied at every part-cooling fan emission below so any
+    // non-zero command is raised to at least this percent (0 disables the clamp).
+    const unsigned int part_cooling_fan_min_pwm = static_cast<unsigned int>(std::max(0, m_config.part_cooling_fan_min_pwm.value));
     bool overhang_fan_control= false;
     int  overhang_fan_speed   = 0;
     bool internal_bridge_fan_control= false; // ORCA: Add support for separate internal bridge fan speed control
@@ -727,7 +730,7 @@ std::string CoolingBuffer::apply_layer_cooldown(
     int  supp_interface_fan_speed = 0;
     bool ironing_fan_control= false; // ORCA: Add support for ironing fan speed control
     int  ironing_fan_speed   = 0; // ORCA: Add support for ironing fan speed control
-    auto change_extruder_set_fan = [ this, layer_id, layer_time, &new_gcode,
+    auto change_extruder_set_fan = [ this, layer_id, layer_time, &new_gcode, part_cooling_fan_min_pwm,
         &overhang_fan_control, &overhang_fan_speed,
         &internal_bridge_fan_control, &internal_bridge_fan_speed,
         &supp_interface_fan_control, &supp_interface_fan_speed,
@@ -743,11 +746,11 @@ std::string CoolingBuffer::apply_layer_cooldown(
         int full_fan_speed_layer = EXTRUDER_CONFIG(full_fan_speed_layer);
         supp_interface_fan_speed = EXTRUDER_CONFIG(support_material_interface_fan_speed);
 
-        if (close_fan_the_first_x_layers <= 0 && full_fan_speed_layer > 0) {
+        // ORCA: previously a silent override forced `close_fan_the_first_x_layers` from 0 up to 1 whenever a ramp
-            // When ramping up fan speed from close_fan_the_first_x_layers to full_fan_speed_layer, force close_fan_the_first_x_layers above zero,
+        // was configured (`full_fan_speed_layer > 0`), so the first printed layer always had the fan disabled.
-            // so there will be a zero fan speed at least at the 1st layer.
+        // That hid the user's literal "no cooling for the first 0 layers" setting and produced a non-zero starting
-            close_fan_the_first_x_layers = 1;
+        // factor on the ramp denominator. The override has been removed: with N=0 and M>0 the ramp now genuinely
-        }
+        // starts on layer 0 at a factor of 1/M and reaches 100% at layer M-1, matching the intent of the option.
         if (int(layer_id) >= close_fan_the_first_x_layers) {
             float   fan_max_speed             = EXTRUDER_CONFIG(fan_max_speed);
             float slow_down_layer_time = float(EXTRUDER_CONFIG(slow_down_layer_time));
@@ -806,7 +809,7 @@ std::string CoolingBuffer::apply_layer_cooldown(
             m_fan_speed = fan_speed_new;
             m_current_fan_speed = fan_speed_new;
             if (immediately_apply)
-                new_gcode  += GCodeWriter::set_fan(m_config.gcode_flavor, m_fan_speed);
+                new_gcode  += GCodeWriter::set_fan(m_config.gcode_flavor, m_fan_speed, part_cooling_fan_min_pwm);
         }
         //BBS
         if (additional_fan_speed_new != m_additional_fan_speed) {
@@ -980,26 +983,26 @@ std::string CoolingBuffer::apply_layer_cooldown(
 
         if (need_set_fan) {
             if (fan_speed_change_requests[CoolingLine::TYPE_OVERHANG_FAN_START]){
-                new_gcode += GCodeWriter::set_fan(m_config.gcode_flavor, overhang_fan_speed);
+                new_gcode += GCodeWriter::set_fan(m_config.gcode_flavor, overhang_fan_speed, part_cooling_fan_min_pwm);
                 m_current_fan_speed = overhang_fan_speed;
             } else if (fan_speed_change_requests[CoolingLine::TYPE_INTERNAL_BRIDGE_FAN_START]){ // ORCA: Add support for separate internal bridge fan speed control
-                new_gcode += GCodeWriter::set_fan(m_config.gcode_flavor, internal_bridge_fan_speed);
+                new_gcode += GCodeWriter::set_fan(m_config.gcode_flavor, internal_bridge_fan_speed, part_cooling_fan_min_pwm);
                 m_current_fan_speed = internal_bridge_fan_speed;
             }
             else if (fan_speed_change_requests[CoolingLine::TYPE_SUPPORT_INTERFACE_FAN_START]){
-                new_gcode += GCodeWriter::set_fan(m_config.gcode_flavor, supp_interface_fan_speed);
+                new_gcode += GCodeWriter::set_fan(m_config.gcode_flavor, supp_interface_fan_speed, part_cooling_fan_min_pwm);
                 m_current_fan_speed = supp_interface_fan_speed;
             }
             else if (fan_speed_change_requests[CoolingLine::TYPE_IRONING_FAN_START]){
-                new_gcode += GCodeWriter::set_fan(m_config.gcode_flavor, ironing_fan_speed);
+                new_gcode += GCodeWriter::set_fan(m_config.gcode_flavor, ironing_fan_speed, part_cooling_fan_min_pwm);
                 m_current_fan_speed = ironing_fan_speed;
             }
             else if(fan_speed_change_requests[CoolingLine::TYPE_FORCE_RESUME_FAN] && m_current_fan_speed != -1){
-                new_gcode += GCodeWriter::set_fan(m_config.gcode_flavor, m_current_fan_speed);
+                new_gcode += GCodeWriter::set_fan(m_config.gcode_flavor, m_current_fan_speed, part_cooling_fan_min_pwm);
                 fan_speed_change_requests[CoolingLine::TYPE_FORCE_RESUME_FAN] = false;
             }
             else
-                new_gcode += GCodeWriter::set_fan(m_config.gcode_flavor, m_fan_speed);
+                new_gcode += GCodeWriter::set_fan(m_config.gcode_flavor, m_fan_speed, part_cooling_fan_min_pwm);
             need_set_fan = false;
         }
         pos = line_end;

src/libslic3r/GCode/FanMover.cpp

@@ -230,7 +230,10 @@ void FanMover::_remove_slow_fan(int16_t min_speed, float past_sec) {
 
 std::string FanMover::_set_fan(int16_t speed) {
     //const Tool* tool = m_writer.get_tool(m_currrent_extruder < 20 ? m_currrent_extruder : 0);
-    return GCodeWriter::set_fan(m_writer.config.gcode_flavor.value, speed);
+    // ORCA: apply the per-printer non-zero fan PWM floor so reposted fan commands respect the clamp too.
+    const int floor_pct = m_writer.config.part_cooling_fan_min_pwm.value;
+    const unsigned int part_cooling_fan_min_pwm = floor_pct > 0 ? static_cast<unsigned int>(floor_pct) : 0u;
+    return GCodeWriter::set_fan(m_writer.config.gcode_flavor.value, speed, part_cooling_fan_min_pwm);
 }
 
 

src/libslic3r/GCodeWriter.cpp

@@ -1092,9 +1092,13 @@ std::string GCodeWriter::unlift()
     return gcode;
 }
 
-std::string GCodeWriter::set_fan(const GCodeFlavor gcode_flavor, unsigned int speed)
+std::string GCodeWriter::set_fan(const GCodeFlavor gcode_flavor, unsigned int speed, unsigned int part_cooling_fan_min_pwm)
 {
     std::ostringstream gcode;
+    // ORCA: clamp non-zero fan commands up to the configured PWM floor so fans that can't spool at low duty
+    // cycles still start reliably. Zero (fan off) is preserved exactly so disable-fan commands are never altered.
+    if (speed > 0 && part_cooling_fan_min_pwm > 0 && speed < part_cooling_fan_min_pwm)
+        speed = part_cooling_fan_min_pwm;
     if (speed == 0) {
         switch (gcode_flavor) {
         case gcfTeacup:
@@ -1129,7 +1133,9 @@ std::string GCodeWriter::set_fan(const GCodeFlavor gcode_flavor, unsigned int sp
 std::string GCodeWriter::set_fan(unsigned int speed) const
 {
     //BBS
-    return GCodeWriter::set_fan(this->config.gcode_flavor, speed);
+    // ORCA: pick up the per-printer PWM floor from the active config.
+    return GCodeWriter::set_fan(this->config.gcode_flavor, speed,
+                                static_cast<unsigned int>(std::max(0, this->config.part_cooling_fan_min_pwm.value)));
 }
 
 //BBS: set additional fan speed for BBS machine only

src/libslic3r/GCodeWriter.hpp

@@ -98,7 +98,9 @@ public:
     void set_xy_offset(double x, double y) { m_x_offset = x; m_y_offset = y; }
     Vec2f get_xy_offset() { return Vec2f{m_x_offset, m_y_offset}; };
     // To be called by the CoolingBuffer from another thread.
-    static std::string set_fan(const GCodeFlavor gcode_flavor, unsigned int speed);
+    // ORCA: `part_cooling_fan_min_pwm` (0-100, default 0) is a floor applied only when `speed` is non-zero, used to overcome
+    // PWM start-up thresholds on fans that won't spool below a certain duty cycle. A `speed` of 0 is always honoured.
+    static std::string set_fan(const GCodeFlavor gcode_flavor, unsigned int speed, unsigned int part_cooling_fan_min_pwm = 0);
     // To be called by the main thread. It always emits the G-code, it does not remember the previous state.
     // Keeping the state is left to the CoolingBuffer, which runs asynchronously on another thread.
     std::string set_fan(unsigned int speed) const;

src/libslic3r/Preset.cpp

@@ -1326,7 +1326,7 @@ static std::vector<std::string> s_Preset_machine_limits_options {
 static std::vector<std::string> s_Preset_printer_options {
     "printer_technology",
     "printable_area", "extruder_printable_area", "bed_exclude_area","bed_custom_texture", "bed_custom_model", "gcode_flavor",
-    "fan_kickstart", "fan_speedup_time", "fan_speedup_overhangs",
+    "fan_kickstart", "part_cooling_fan_min_pwm", "fan_speedup_time", "fan_speedup_overhangs",
     "single_extruder_multi_material", "manual_filament_change", "file_start_gcode", "machine_start_gcode", "machine_end_gcode", "before_layer_change_gcode", "printing_by_object_gcode", "layer_change_gcode", "time_lapse_gcode", "wrapping_detection_gcode", "change_filament_gcode", "change_extrusion_role_gcode",
     "printer_model", "printer_variant", "printer_extruder_id", "printer_extruder_variant", "extruder_variant_list", "default_nozzle_volume_type",
     "printable_height", "extruder_printable_height", "extruder_clearance_radius", "extruder_clearance_height_to_lid", "extruder_clearance_height_to_rod",

src/libslic3r/Print.cpp

@@ -133,6 +133,7 @@ bool Print::invalidate_state_by_config_options(const ConfigOptionResolver & /* n
         "fan_cooling_layer_time",
         "full_fan_speed_layer",
         "fan_kickstart",
+        "part_cooling_fan_min_pwm",
         "fan_speedup_overhangs",
         "fan_speedup_time",
         "filament_colour",
@@ -1753,46 +1754,47 @@ StringObjectException Print::validate(StringObjectException *warning, Polygons*
             };
             std::string warning_key;
 
+            const auto max_junction_deviation = m_config.machine_max_junction_deviation.values[0];
+            const bool ignore_jerk_validation = m_config.gcode_flavor == gcfMarlinFirmware && max_junction_deviation > 0;
+
             // check jerk
-            if (m_default_object_config.default_jerk == 1 || m_default_object_config.outer_wall_jerk == 1 ||
+            if (!ignore_jerk_validation) {
-                m_default_object_config.inner_wall_jerk == 1) {
+                if (m_default_object_config.default_jerk == 1 || m_default_object_config.outer_wall_jerk == 1 ||
-               warning->string = L("Setting the jerk speed too low could lead to artifacts on curved surfaces");
+                    m_default_object_config.inner_wall_jerk == 1) {
-               if (m_default_object_config.outer_wall_jerk == 1)
+                   warning->string = L("Setting the jerk speed too low could lead to artifacts on curved surfaces");
-                    warning_key = "outer_wall_jerk";
+                   if (m_default_object_config.outer_wall_jerk == 1)
-               else if (m_default_object_config.inner_wall_jerk == 1)
+                        warning_key = "outer_wall_jerk";
-                    warning_key = "inner_wall_jerk";
+                   else if (m_default_object_config.inner_wall_jerk == 1)
-               else
+                        warning_key = "inner_wall_jerk";
-                    warning_key = "default_jerk";
+                   else
+                        warning_key = "default_jerk";
 
-               warning->opt_key = warning_key;
+                   warning->opt_key = warning_key;
-            }
+                }
 
-            if (warning_key.empty() && m_default_object_config.default_jerk > 0) {
+                if (warning_key.empty() && m_default_object_config.default_jerk > 0) {
-               std::vector<std::string> jerk_to_check = {"default_jerk",     "outer_wall_jerk",    "inner_wall_jerk", "infill_jerk",
+                   std::vector<std::string> jerk_to_check = {"default_jerk",     "outer_wall_jerk",    "inner_wall_jerk", "infill_jerk",
-                                                         "top_surface_jerk", "initial_layer_jerk", "travel_jerk"};
+                                                             "top_surface_jerk", "initial_layer_jerk", "travel_jerk"};
-               const auto               max_jerk = std::min(m_config.machine_max_jerk_x.values[0], m_config.machine_max_jerk_y.values[0]);
+                   const auto               max_jerk = std::min(m_config.machine_max_jerk_x.values[0], m_config.machine_max_jerk_y.values[0]);
-               warning_key.clear();
+                   warning_key.clear();
-               if (m_default_object_config.default_jerk > 0)
+                   warning_key = check_motion_ability_object_setting(jerk_to_check, max_jerk);
-                    warning_key = check_motion_ability_object_setting(jerk_to_check, max_jerk);
+                   if (!warning_key.empty()) {
-               if (!warning_key.empty()) {
+                        warning->string = L(
-                    warning->string = L(
+                            "The jerk setting exceeds the printer's maximum jerk (machine_max_jerk_x/machine_max_jerk_y).\n"
-                        "The jerk setting exceeds the printer's maximum jerk (machine_max_jerk_x/machine_max_jerk_y).\nOrca will "
+                            "Orca will automatically cap the jerk speed to ensure it doesn't surpass the printer's capabilities.\n"
-                        "automatically cap the jerk speed to ensure it doesn't surpass the printer's capabilities.\nYou can adjust the "
+                            "You can adjust the maximum jerk setting in your printer's configuration to get higher speeds.");
-                        "maximum jerk setting in your printer's configuration to get higher speeds.");
+                        warning->opt_key = warning_key;
-                    warning->opt_key = warning_key;
+                   }
-               }
+                }
             }
 
             // Check junction deviation
-            const auto max_junction_deviation = m_config.machine_max_junction_deviation.values[0];
             // Orca: Only marlin FW supports max junction deviation. Dont display warning if firmware is not supporting it.
             const bool support_max_junction_deviation = ( m_config.gcode_flavor == gcfMarlinFirmware);
             if (warning_key.empty() && m_default_object_config.default_junction_deviation.value > max_junction_deviation && support_max_junction_deviation) {
-                warning->string  = L( "Junction deviation setting exceeds the printer's maximum value "
+                warning->string  = L( "Junction deviation setting exceeds the printer's maximum value (machine_max_junction_deviation).\n"
-                                      "(machine_max_junction_deviation).\nOrca will "
+                                      "Orca will automatically cap the junction deviation to ensure it doesn't surpass the printer's capabilities.\n"
-                                      "automatically cap the junction deviation to ensure it doesn't surpass the printer's "
+                                      "You can adjust the machine_max_junction_deviation value in your printer's configuration to get higher limits.");
-                                      "capabilities.\nYou can adjust the "
-                                      "machine_max_junction_deviation value in your printer's configuration to get higher limits.");
                 warning->opt_key = warning_key;
             }
             

src/libslic3r/PrintConfig.cpp

@@ -3724,6 +3724,28 @@ void PrintConfigDef::init_fff_params()
     def->mode = comAdvanced;
     def->set_default_value(new ConfigOptionFloat(0));
 
+    // ORCA: minimum non-zero part cooling fan speed.
+    def = this->add("part_cooling_fan_min_pwm", coInt);
+    def->label = L("Minimum non-zero part cooling fan speed");
+    def->tooltip = L("Some part-cooling fans cannot start spinning when commanded below a certain PWM duty cycle. "
+                     "When set above 0, any non-zero part-cooling fan command will be raised to at least this percentage "
+                     "so the fan reliably starts. A fan command of 0 (fan off) is always honoured exactly. "
+                     "This clamp is applied after every other fan calculation (first-layer ramp, layer-time interpolation, "
+                     "overhang/bridge/support-interface/ironing overrides), so scaling still operates within the range "
+                     "[this value, 100%]."
+                     "\nIf your firmware already disables the fan below a threshold (for example Klipper's "
+                     "[fan] off_below: 0.10 shuts the fan off whenever the commanded duty cycle is below 10%), "
+                     "this option and the firmware threshold should ideally be set to the same value. Matching them "
+                     "(e.g. off_below: 0.10 in Klipper and 10% here) guarantees the slicer never emits a non-zero "
+                     "value that the firmware would silently drop, and the fan never receives a value below the one "
+                     "you know it can actually spool at."
+                     "\nSet to 0 to deactivate.");
+    def->sidetext = L("%");
+    def->min = 0;
+    def->max = 100;
+    def->mode = comAdvanced;
+    def->set_default_value(new ConfigOptionInt(0));
+
 
     def = this->add("time_cost", coFloat);
     def->label = L("Time cost");

src/libslic3r/PrintConfig.hpp

@@ -1309,6 +1309,10 @@ PRINT_CONFIG_CLASS_DEFINE(
     ((ConfigOptionFloat,               fan_kickstart))
     ((ConfigOptionBool,                fan_speedup_overhangs))
     ((ConfigOptionFloat,               fan_speedup_time))
+    // ORCA: minimum PWM (as a percent 0-100) emitted when the part-cooling fan is asked for a non-zero speed.
+    // Used to overcome the PWM start-up threshold on fans that cannot spool below a certain duty cycle.
+    // A value of 0 (the default) leaves behaviour unchanged. A fan command of 0 (off) is always honoured.
+    ((ConfigOptionInt,                 part_cooling_fan_min_pwm))
     ((ConfigOptionFloats,              filament_diameter))
     ((ConfigOptionBoolsNullable,       filament_adaptive_volumetric_speed))
     ((ConfigOptionStrings,             volumetric_speed_coefficients))

src/slic3r/CMakeLists.txt

@@ -687,6 +687,8 @@ if (APPLE)
             GUI/Mouse3DHandlerMac.mm
             GUI/InstanceCheckMac.mm
             GUI/InstanceCheckMac.h
+            GUI/DeepLinkHandlerMac.mm
+            GUI/DeepLinkHandlerMac.h
             GUI/GUI_UtilsMac.mm
             GUI/wxMediaCtrl2.mm
             GUI/wxMediaCtrl2.h

src/slic3r/GUI/DeepLinkHandlerMac.h

@@ -0,0 +1,16 @@
+#ifndef slic3r_GUI_DeepLinkHandlerMac_h_
+#define slic3r_GUI_DeepLinkHandlerMac_h_
+
+namespace Slic3r {
+namespace GUI {
+
+// Re-registers a Cocoa Apple Event handler for kInternetEventClass/kAEGetURL.
+// Works around a regression observed after upgrading to wxWidgets 3.3.2 on
+// macOS Tahoe (#13119) where wxWidgets' built-in handler is registered but
+// never fires for orcaslicer:// deep links.
+void register_mac_deep_link_handler();
+
+} // namespace GUI
+} // namespace Slic3r
+
+#endif

src/slic3r/GUI/DeepLinkHandlerMac.mm

@@ -0,0 +1,41 @@
+#import <AppKit/AppKit.h>
+#import <Foundation/Foundation.h>
+
+#include <boost/log/trivial.hpp>
+
+#include "DeepLinkHandlerMac.h"
+#include "GUI_App.hpp"
+
+@interface OrcaDeepLinkHandler : NSObject
+- (void)handleGetURLEvent:(NSAppleEventDescriptor *)event withReplyEvent:(NSAppleEventDescriptor *)reply;
+@end
+
+@implementation OrcaDeepLinkHandler
+- (void)handleGetURLEvent:(NSAppleEventDescriptor *)event withReplyEvent:(NSAppleEventDescriptor *)reply
+{
+    NSString *url = [[event paramDescriptorForKeyword:keyDirectObject] stringValue];
+    if (url == nil || url.length == 0)
+        return;
+    BOOST_LOG_TRIVIAL(info) << "Deep link received: " << [url UTF8String];
+    Slic3r::GUI::wxGetApp().MacOpenURL(wxString::FromUTF8([url UTF8String]));
+}
+@end
+
+namespace Slic3r {
+namespace GUI {
+
+void register_mac_deep_link_handler()
+{
+    static OrcaDeepLinkHandler *handler = nil;
+    if (handler == nil)
+        handler = [[OrcaDeepLinkHandler alloc] init];
+
+    [[NSAppleEventManager sharedAppleEventManager]
+        setEventHandler:handler
+            andSelector:@selector(handleGetURLEvent:withReplyEvent:)
+          forEventClass:kInternetEventClass
+             andEventID:kAEGetURL];
+}
+
+} // namespace GUI
+} // namespace Slic3r

src/slic3r/GUI/GUI_App.cpp

@@ -11,7 +11,6 @@
 #include "Downloader.hpp"
 #include <boost/chrono/duration.hpp>
 #include <boost/log/detail/native_typeof.hpp>
-#include <libslic3r/Config.hpp>
 #include <wx/event.h>
 
 // Localization headers: include libslic3r version first so everything in this file
@@ -101,6 +100,9 @@
 #include "Mouse3DController.hpp"
 #include "RemovableDriveManager.hpp"
 #include "InstanceCheck.hpp"
+#ifdef __APPLE__
+#include "DeepLinkHandlerMac.h"
+#endif
 #include "NotificationManager.hpp"
 #include "UnsavedChangesDialog.hpp"
 #include "SavePresetDialog.hpp"
@@ -784,9 +786,20 @@ void GUI_App::post_init()
         mainframe->select_tab(size_t(MainFrame::tp3DEditor));
         plater_->select_view_3D("3D");
         //BBS init the opengl resource here
-//#ifdef __linux__
+        if (!plater_->canvas3D()->get_wxglcanvas()->IsShownOnScreen() ||
-        if (plater_->canvas3D()->get_wxglcanvas()->IsShownOnScreen()&&plater_->canvas3D()->make_current_for_postinit()) {
+            !plater_->canvas3D()->make_current_for_postinit()) {
-//#endif
+            BOOST_LOG_TRIVIAL(warning) << __FUNCTION__ << ": glcontext not ready, postpone init";
+            plater_->canvas3D()->enable_render(true);
+            plater_->canvas3D()->set_as_dirty();
+#ifdef __linux__
+            // Wayland/EGL may not have committed the GL surface yet; ask the
+            // idle loop to retry post_init when the canvas is actually mapped.
+            // Without this, GL function pointers stay null and the first
+            // Preview focus crashes in Camera::apply_viewport.
+            m_post_initialized = false;
+            return;
+#endif
+        } else {
             Size canvas_size = plater_->canvas3D()->get_canvas_size();
             wxGetApp().imgui()->set_display_size(static_cast<float>(canvas_size.get_width()), static_cast<float>(canvas_size.get_height()));
             BOOST_LOG_TRIVIAL(info) << __FUNCTION__ << ", start to init opengl";
@@ -806,14 +819,7 @@ void GUI_App::post_init()
                 plater_->canvas3D()->render(false);
                 BOOST_LOG_TRIVIAL(info) << __FUNCTION__ << ", finished rendering a first frame for test";
             }
-//#ifdef __linux__
         }
-        else {
-            BOOST_LOG_TRIVIAL(warning) << __FUNCTION__ << "Found glcontext not ready, postpone the init";
-            plater_->canvas3D()->enable_render(true);
-            plater_->canvas3D()->set_as_dirty();
-        }
-//#endif
         if (is_editor())
             mainframe->select_tab(size_t(0));
         if (app_config->get("default_page") == "1")
@@ -2548,6 +2554,12 @@ std::string get_system_info()
 bool GUI_App::on_init_inner()
 {
     wxLog::SetActiveTarget(new wxBoostLog());
+
+#ifdef __APPLE__
+    // Override wxWidgets' kAEGetURL handler so orcaslicer:// deep links keep
+    // working after the wxWidgets 3.3.2 upgrade on macOS (#13119).
+    register_mac_deep_link_handler();
+#endif
 #if BBL_RELEASE_TO_PUBLIC
     wxLog::SetLogLevel(wxLOG_Message);
 #endif
@@ -4836,12 +4848,12 @@ void GUI_App::on_http_error(wxCommandEvent &evt)
                 BOOST_LOG_TRIVIAL(warning) << "logout: http error 401.";
                 this->request_user_logout(provider);
 
-                if (!m_show_http_error_msgdlg) {
+                if (!m_show_http_errpr_msgdlg) {
                     MessageDialog msg_dlg(nullptr, _L("Login information expired. Please login again."), "", wxAPPLY | wxOK);
-                    m_show_http_error_msgdlg = true;
+                    m_show_http_errpr_msgdlg = true;
                     auto modal_result = msg_dlg.ShowModal();
                     if (modal_result == wxOK || modal_result == wxCLOSE) {
-                        m_show_http_error_msgdlg = false;
+                        m_show_http_errpr_msgdlg = false;
                         return;
                     }
                 }
@@ -4849,40 +4861,6 @@ void GUI_App::on_http_error(wxCommandEvent &evt)
         }
         return;
     }
-
-    // No need to show dialog for 410: 410 means resource has been deleted from the server.
-    if (status == 410) {
-        BOOST_LOG_TRIVIAL(info) << "Http error 410.";
-        return;
-    }
-
-    static bool m_is_error_shown = false;
-    // Show general error notification for Orca Cloud API failures (not Bambu)
-    if (provider == ORCA_CLOUD_PROVIDER && status >= 400 && code != HttpErrorVersionLimited) {
-        wxString msg;
-        if (!error.empty()) {
-            msg = wxString::Format(_L("API error (HTTP %u): %s"), status, wxString::FromUTF8(error));
-        } else {
-            msg = wxString::Format(_L("API error (HTTP %u)"), status);
-        }
-
-        if (app_config->get_bool("developer_mode")) {
-            // Use notification manager if ImGui is ready; fall back to wxMessageBox on Linux
-            // where ImGui may not be initialized until the user switches to the Prepare tab.
-            if (wxGetApp().plater() != nullptr && wxGetApp().imgui()->display_initialized()) {
-                wxGetApp()
-                    .plater()
-                    ->get_notification_manager()
-                    ->push_notification(NotificationType::PlaterError, NotificationManager::NotificationLevel::WarningNotificationLevel,
-                                        msg.ToUTF8().data());
-            }
-        }
-
-        if (!m_is_error_shown) {
-            m_is_error_shown = true;
-            wxMessageBox(msg, _L("Orca Cloud API Error"), wxOK | wxICON_ERROR, wxGetApp().mainframe);
-        }
-    }
 }
 
 void GUI_App::enable_user_preset_folder(bool enable)

src/slic3r/GUI/GUI_App.hpp

@@ -324,7 +324,7 @@ private:
     bool             m_is_dark_mode{ false };
     bool             m_adding_script_handler { false };
     bool             m_side_popup_status{false};
-    bool             m_show_http_error_msgdlg{false};
+    bool             m_show_http_errpr_msgdlg{false};
     bool             m_show_error_msgdlg{false};
     wxString         m_info_dialog_content;
     HttpServer       m_http_server;

src/slic3r/GUI/GUI_ObjectTable.cpp

@@ -561,14 +561,23 @@ wxString GridCellSupportEditor::ms_stringValues[2] = { wxT(""), wxT("") };
 
 void GridCellSupportEditor::DoActivate(int row, int col, wxGrid* grid)
 {
-    ObjectGrid* local_table = dynamic_cast<ObjectGrid*>(grid);
     wxGridBlocks cell_array = grid->GetSelectedBlocks();
-   
+    auto iter = cell_array.begin();
-    auto left_col = cell_array.begin()->GetLeftCol();
+
-    auto right_col = cell_array.begin()->GetRightCol();
+    int left_col, right_col, top_row, bottom_row;
-    auto top_row = cell_array.begin()->GetTopRow();
+    if (iter == cell_array.end()) {
-    auto bottom_row = cell_array.begin()->GetBottomRow();
+        // wxWidgets 3.3.x returns an empty range when nothing is selected;
-  
+        // fall back to the cell that triggered activation so the single-cell
+        // branch below handles it.
+        left_col = right_col = col;
+        top_row  = bottom_row = row;
+    } else {
+        left_col   = iter->GetLeftCol();
+        right_col  = iter->GetRightCol();
+        top_row    = iter->GetTopRow();
+        bottom_row = iter->GetBottomRow();
+    }
+
 	if ((left_col == right_col) &&
 		(top_row == bottom_row)) {
 		wxGridCellBoolEditor::DoActivate(row, col, grid);

src/slic3r/GUI/ImGuiWrapper.hpp

@@ -373,13 +373,12 @@ public:
     //BBS
     static int TOOLBAR_WINDOW_FLAGS;
 
-    bool display_initialized() const;
-
 private:
     void init_font(bool compress);
     void init_input();
     void init_style();
     void render_draw_data(ImDrawData *draw_data);
+    bool display_initialized() const;
     void destroy_font();
     std::vector<unsigned char> load_svg(const std::string& bitmap_name, unsigned target_width, unsigned target_height, unsigned *outwidth, unsigned *outheight);
 

src/slic3r/GUI/PrinterWebView.cpp

@@ -23,6 +23,81 @@
 namespace Slic3r {
 namespace GUI {
 
+#ifdef __linux__
+// Workaround for #7210: WebKitGTK crashes on vue-resize's hidden <object> probe used by
+// older Fluidd/Mainsail pages. Swap that <object> for a <div> shim at appendChild time
+// and bridge resize events through a fake contentDocument.defaultView so vue-resize keeps
+// working. Workaround proposed by @VittC.
+static void inject_vue_resize_workaround(wxWebView *webView)
+{
+    webView->AddUserScript(
+        "(function() {"
+        "  'use strict';"
+        "  function isVueResizeObject(el) {"
+        "    return el && el.tagName === 'OBJECT'"
+        "        && el.type === 'text/html'"
+        "        && el.getAttribute('aria-hidden') === 'true'"
+        "        && el.getAttribute('tabindex') === '-1';"
+        "  }"
+        "  function isResizeObserverParent(p) {"
+        "    return p && p.classList && p.classList.contains('resize-observer');"
+        "  }"
+        "  function makeShim(orig, parentForRO) {"
+        "    var shim = document.createElement('div');"
+        "    shim.setAttribute('aria-hidden', 'true');"
+        "    shim.setAttribute('tabindex', '-1');"
+        "    shim.style.display = 'none';"
+        "    var fakeWin = document.createElement('div');"
+        "    var ro = null;"
+        "    var origRemoveEL = fakeWin.removeEventListener.bind(fakeWin);"
+        "    fakeWin.removeEventListener = function(type, fn, opts) {"
+        "      origRemoveEL(type, fn, opts);"
+        "      if (type === 'resize' && ro) { ro.disconnect(); ro = null; }"
+        "    };"
+        "    Object.defineProperty(shim, 'contentDocument', {"
+        "      configurable: true,"
+        "      get: function() { return { defaultView: fakeWin }; }"
+        "    });"
+        "    Object.defineProperty(shim, 'contentWindow', {"
+        "      configurable: true,"
+        "      get: function() { return fakeWin; }"
+        "    });"
+        "    if (typeof orig.onload === 'function') { shim.onload = orig.onload; }"
+        "    queueMicrotask(function() {"
+        "      if (parentForRO && typeof ResizeObserver !== 'undefined') {"
+        "        ro = new ResizeObserver(function() {"
+        "          fakeWin.dispatchEvent(new Event('resize'));"
+        "        });"
+        "        ro.observe(parentForRO);"
+        "      }"
+        "      if (typeof shim.onload === 'function') {"
+        "        try { shim.onload(new Event('load')); } catch (e) {}"
+        "      }"
+        "      shim.dispatchEvent(new Event('load'));"
+        "    });"
+        "    return shim;"
+        "  }"
+        "  var origAppend = Node.prototype.appendChild;"
+        "  Node.prototype.appendChild = function(child) {"
+        "    if (isResizeObserverParent(this) && isVueResizeObject(child)) {"
+        "      return origAppend.call(this, makeShim(child, this));"
+        "    }"
+        "    return origAppend.call(this, child);"
+        "  };"
+        "  var origInsertBefore = Node.prototype.insertBefore;"
+        "  Node.prototype.insertBefore = function(child, ref) {"
+        "    if (isResizeObserverParent(this) && isVueResizeObject(child)) {"
+        "      return origInsertBefore.call(this, makeShim(child, this), ref);"
+        "    }"
+        "    return origInsertBefore.call(this, child, ref);"
+        "  };"
+        "  console.log('[vr-fix] vue-resize WebKitGTK patch active');"
+        "})();",
+        wxWEBVIEW_INJECT_AT_DOCUMENT_START
+    );
+}
+#endif
+
 PrinterWebView::PrinterWebView(wxWindow *parent)
         : wxPanel(parent, wxID_ANY, wxDefaultPosition, wxDefaultSize)
     , m_browser(nullptr)
@@ -43,6 +118,8 @@ PrinterWebView::PrinterWebView(wxWindow *parent)
     }
 
 #ifdef __linux__
+    inject_vue_resize_workaround(m_browser);
+
     auto cookiesPath = boost::filesystem::path(data_dir() + "/cache/cookies.db");
     auto wv = static_cast<WebKitWebView*>(m_browser->GetNativeBackend());
     auto wv_ctx = webkit_web_view_get_context(wv);
@@ -165,6 +242,10 @@ void PrinterWebView::SendAPIKey()
 )",
                                        m_apikey);
     m_browser->RemoveAllUserScripts();
+#ifdef __linux__
+    // Re-inject the vue-resize/WebKitGTK workaround that RemoveAllUserScripts just cleared.
+    inject_vue_resize_workaround(m_browser);
+#endif
 
     m_browser->AddUserScript(script);
     m_browser->Reload();

src/slic3r/GUI/Tab.cpp

@@ -4500,6 +4500,8 @@ void TabPrinter::build_fff()
         line.append_option(optgroup->get_option("fan_speedup_overhangs"));
         optgroup->append_line(line);
         optgroup->append_single_option_line("fan_kickstart", "printer_basic_information_cooling_fan#fan-kick-start-time");
+        // ORCA: PWM floor for fans that won't spool at low duty cycles.
+        optgroup->append_single_option_line("part_cooling_fan_min_pwm", "printer_basic_information_cooling_fan#minimum-non-zero-part-cooling-fan-speed");
 
         optgroup = page->new_optgroup(L("Extruder Clearance"), "param_extruder_clearance");
         optgroup->append_single_option_line("extruder_clearance_radius", "printer_basic_information_extruder_clearance#radius");