Block when exporting gcodes

[avalero]

It gets blocke when exporting gcode for any STL

; generated by Slic3r 0.9.9 on 2013-04-07 at 10:32:41

; layer_height = 0.15 ; perimeters = 3 ; top_solid_layers = 0 ; bottom_solid_layers = 6 ; fill_density = 0 ; perimeter_speed = 30 ; infill_speed = 30 ; travel_speed = 80 ; nozzle_diameter = 0.25 ; filament_diameter = 3 ; extrusion_multiplier = 1 ; perimeters extrusion width = 0.35mm ; infill extrusion width = 0.35mm ; solid infill extrusion width = 0.35mm ; top infill extrusion width = 0.35mm ; first layer extrusion width = 0.40mm

[linuxlurak]

Perhaps same as here? --> Issue #1095 Use Windows version of slic3r till this bug is solved. Greetings

[avalero]

Well... I do not have Windows...

On Sun, Apr 7, 2013 at 11:10 AM, linuxlurak notifications@github.comwrote:

Perhaps same as here? --> Issue #1095https://github.com/alexrj/Slic3r/issues/1095 Use Windows version of slic3r till this bug is solved. Greetings

— Reply to this email directly or view it on GitHubhttps://github.com/alexrj/Slic3r/issues/1101#issuecomment-16011909 .

[alranel]

Please read this:

https://github.com/alexrj/Slic3r/wiki/Quick-guide-to-writing-good-bug-reports

[avalero]

Thank you Alessandro. Sorry for that.

When generating gcode of STL file: http://www.thingiverse.com/thing:71440under Ubuntu 12.10 and Slic3r 0.9.9 on a Intel i5 with 4Gb RAM the "exporting gcode" phase of the gcode generation takes around 30 minutes.

The config of slic3r is:

---

generated by Slic3r 0.9.9 on Mon Apr 8 21:04:27 2013

avoid_crossing_perimeters = 1 bed_size = 210,210 bed_temperature = 110 bottom_solid_layers = 5 bridge_acceleration = 0 bridge_fan_speed = 100 bridge_flow_ratio = 1 bridge_speed = 50 brim_width = 0 complete_objects = 0 cooling = 1 default_acceleration = 0 disable_fan_first_layers = 1 duplicate = 1 duplicate_distance = 6 duplicate_grid = 1,1 end_gcode = M140 S0 ;Turn heated bed off\nM104 S0 ;Turn nozzle heat off\nG91 ;Make coordinates relative\nG0 Z2 E-2 ;Move up 2mm and retract extuder 2mm at 400mm/min\nG90 ;Use absolute coordinates again\nG00 X100 Y180 F10000 ;Go to dump area\nM84 ;Disable steppers so they dont get hot during idling...\nM84 S0 ;Cancel the timeout set by the start gcode external_perimeter_speed = 100% external_perimeters_first = 0 extra_perimeters = 1 extruder_clearance_height = 20 extruder_clearance_radius = 20 extruder_offset = 0x0 extrusion_axis = E extrusion_multiplier = 1 extrusion_width = 0 fan_always_on = 0 fan_below_layer_time = 60 filament_diameter = 3 fill_angle = 45 fill_density = 0.30 fill_pattern = honeycomb first_layer_bed_temperature = 115 first_layer_extrusion_width = 200% first_layer_height = 0.2 first_layer_speed = 30% first_layer_temperature = 230 g0 = 0 gap_fill_speed = 30 gcode_arcs = 0 gcode_comments = 0 gcode_flavor = reprap infill_acceleration = 0 infill_every_layers = 1 infill_extruder = 1 infill_extrusion_width = 0 infill_first = 0 infill_only_where_needed = 1 infill_speed = 50 layer_gcode = layer_height = 0.15 max_fan_speed = 100 min_fan_speed = 35 min_print_speed = 10 min_skirt_length = 0 notes = nozzle_diameter = 0.25 only_retract_when_crossing_perimeters = 1 output_filename_format = [input_filename_base].gcode perimeter_acceleration = 0 perimeter_extruder = 1 perimeter_extrusion_width = 0 perimeter_speed = 50 perimeters = 6 post_process = print_center = 105,105 raft_layers = 0 randomize_start = 1 resolution = 0 retract_before_travel = 2 retract_layer_change = 1 retract_length = 1 retract_length_toolchange = 10 retract_lift = 0 retract_restart_extra = 0 retract_restart_extra_toolchange = 0 retract_speed = 25 rotate = 0 scale = 1 skirt_distance = 6 skirt_height = 1 skirts = 1 slowdown_below_layer_time = 30 small_perimeter_speed = 100% solid_fill_pattern = rectilinear solid_infill_below_area = 70 solid_infill_every_layers = 0 solid_infill_extrusion_width = 0 solid_infill_speed = 100% start_gcode = G28 ; home all axes\nG1 Z5 F5000 ; lift nozzle support_material = 0 support_material_angle = 0 support_material_enforce_layers = 0 support_material_extruder = 1 support_material_extrusion_width = 0 support_material_interface_layers = 0 support_material_interface_spacing = 0 support_material_pattern = rectilinear support_material_spacing = 2.5 support_material_speed = 30 support_material_threshold = 0 temperature = 225 threads = 2 toolchange_gcode = top_infill_extrusion_width = 0 top_solid_infill_speed = 100% top_solid_layers = 5 travel_speed = 80 use_relative_e_distances = 0 vibration_limit = 0

z_offset = 0

On Tue, Apr 9, 2013 at 9:20 AM, Alessandro Ranellucci < notifications@github.com> wrote:

Please read this:

https://github.com/alexrj/Slic3r/wiki/Quick-guide-to-writing-good-bug-reports

— Reply to this email directly or view it on GitHubhttps://github.com/alexrj/Slic3r/issues/1101#issuecomment-16097886 .

[alranel]

Blocked or just slow?

[lordofhyphens]

It's really slow, even on 1.3.0-dev. Although I think it's excused a bit by being 867 layers of 30% hexagonal infill. Wow.

[bubnikv]

This is an interesting problem. Sometimes the g-code export really stalls indefinitely or for extremely long. I currently don't have a good explanation of this effect. Maybe it is a result of to many tiny string operations over a huge text block over and over, maybe it is a concatenation of text bit by bit?

[lordofhyphens]

Yeah, I don't know what is going on, but his test case does export when I reduced the infill; just took a long time (and generated a 34M gcode file). So it's not getting into an infinite loop or something.

It's probably the numerous additive string operations (all the methods in GCode and GCodeWriter return strings).

[lordofhyphens]

Closed as it just takes a while, not freezing the program. We have another issue for slow gcode writing.