jittery inner wall

[dgrogandesign 0]

Hi folks.

I have noticed that my printer often does this strange thing where it "vibrates" around the inner wall. this is more time consuming that simply tracing around the edge as i would expect it to do. ive taken a look at the slices and think that the images reveal why its doing it.

the first one has a nice clean inner trace and the second one is all mudded up. does anyone know why this is happening?

Any help would be much appreciated.

Dan

Cura profile string:

;CURA_PROFILE_STRING:eNrtWktv20YQvhJGf8QeUzRWSUqy4wg8NKmdS1IEsIsmvhArciVuTe4Su0vLD+i/99vlw5QttU5jNI9SBxv8OLMzO/PNw7Byes1UnDG+zEzkj0JvRfM8NhlPLgTTGtALTzGjaGK4FDETdJ6z6ExVzNMy52mcuwPuFAJvwXFCyoTm5joKfa9UXJhYl4yl0WH7aFhRMkVNpVgUTragYbQFHG8DJ9vAaQfOWbph7cj3dFWWUpnoNymYV+bULKQqYppmTOOS0SvFi1YmTiuax+zKqKp+J03mrXjJYiNXTEUnNNesB8SXMq8KFgVTT8obFuuMszxtxBAZWjD4lHL8NlAPRofTh7C9+wNwvA2cbAOnfXCRy1UU+P7I94S8ucnhEr9hyOukn9c6Owd+H6OFrISJJqNpH3XxaF4FB5vvCi5iPFyyHBfbeJPIYs7FMvolz+8p8GIjvvAz7EtksrQYojSXxshig5qh59jnxyuemixeQEciplPfk/M/WQLScXFh1T15yVROS+c9AGSn9rO5OFQg1FioGV2/AH25cISun62Y4z1VjPYwLjQz/n3gqgckUuYuQE3BcJAEqadtTbUc0RccrMu5YAiaDXLYQEtaRmNr3j21kcuZWJqsuYA9bVHB2a6eawvNJX3/7iku6JVDOr8WQFEioG4DZoyivPnCtJ65ejdISK/865jViItTE2lbACg57giJGkSFsbgOZXtcU2DmumTRW9xXdxAVSzSZg65QY3dy7dy0A6+uwXhtqEgsnQ87/KYPW/mSK5pb0jeGeVGiDAqZtsgcfm6EHHVAFwgyVUsuoumoeXYiuqSJpfK4RedUsw1ajnu4VXHsREU08mhKTIGrm0rh4f23d6quWO1LyhVoEKNFO071MHtCWAO6avQt0XR0D91ms9PYsLjgVyg/pTjYGVfCtQQ7G5CvmHYdbbfMfKsMYiJLJuI5N3qbAFqBHR2XCLThJslsqGuxMq+QDaQILFpGz/Iy2Bu1hZ4wG7b4KtoP7kHXgH4AHZQZLROb8tlpzhOWEmpektuUXq/tT8Pwy9bkem/2imqeEJSvgW39kry1cSR1SUEl703MNfkD14XM7ebYXJMTMBZwfxbi6Pd2IhFrB++amVUbPWn6NUGA0lqx7t91q10XPWhV2172tBKpTV/LPuPUd8GRT05vtw7CNZn9LtCXnb6RhKYpuZaVInIlCGRJT5ZYZtjj/KPuuMce9eCYN2FAms8M7UEh2Jc0r5jeewNv2zd0jgZTGUZKieCBWEjG3rsXYSeABBE3N1JkxxptFWxh78HVw07SZp+suMmIyRhBDyRysYAfL8gHn3z0rR9oW+TDzx/tQWiGhIlUo9NpJ3TuN85aofOHIgE5D9AjyMltf6isGwVrst0xSGojEkyLAncNyXF33bvP7IYp6ZSay6Wk7vHWzkno++R4fE+jESTjosDFiG3kBK4lF59uhNAl5cKZ2rwMuFsZ4jKPRJACJKdLRqQgb1//SnSiGBMIenBI3jcyo9HIQ4zaqjsWKXnzuknNhJxu8ap3F1tvKErlEvUumPg7FZxc6gh7p0Ke8YVlIMlwBcLNj4hEQB7xmSmGVKH7bNAO4TjeR0jGvv8Pym5vqVnWliYlaHWknoDEjlMbPytRr2PPLZ9glWFaEC0LZlPoOKMQYxSN49dPGOXwYUo+7IegrP2xnW3npCobkxQRbz3qvGGXTKBC7LF39P/bS+0qjefw1jlq9wTCNZEgSOP7il6jVie7D9WGlegKui7Eo90+7OgDgX9gGTFDVxFdQc/QmSRuakcHSLhce67yw6HxP0Hjn3x+46/nx1mw7aTwXx3lf9lp9LXPmLMdPW92urKrlbViNUM0irbvfs5cCvztcynwn3QwOVv7t9v/Jl3vnfmPuvSCK22+pWs/0TwOdwzkM/8TZ7LVCYY5Pszxz5jjOyb2eJjYw8T+f07s8FHDa6y+q4k9rCnDmnJvTRl/yTXF6oTDajOsNk+/2kyG1earWm3Cp1tthi3pP9uSxo+anRM4/R0tDMNqOKyGw2oo0sm3thpanfGwTg7r5NOuk83XXfrfbejAu3+81t/l2RBySE9CMczYhI0SfRl5SELdZo4bXnYLa9185sysUJnu0kmllAtxS2GbAJdoIB36nKwyKHSV7paJosoNL/OuXSg92pudZQiqtWaDi/XGsdyxyB569kz86CEm5mvyjy5sAbbu/QUFBv+k

[/media]

[00D00B 58]

Hi,

Please give us the profile you use by saving it in ".ini." file.

Then, we would be able to open it and check it out !

[dgrogandesign 0]

Hi,

Please give us the profile you use by saving it in ".ini." file.

Then, we would be able to open it and check it out !

 

hi this is the copied text from the .ini file. is this what you require?

thanks.

ps. i noticed that the inner line clears up when i revert back to a single instance of the model(the screen shot was taken when there were two copies )

whether this will translate onto the print ive yet to find out but whatever the result its strange....

[profile]

layer_height = 0.2

wall_thickness = 0.8

retraction_enable = True

solid_layer_thickness = 1

fill_density = 20

print_speed = 70

print_temperature = 240

print_temperature2 = 0

print_temperature3 = 0

print_temperature4 = 0

print_temperature5 = 0

print_bed_temperature = 90

support = None

platform_adhesion = Brim

support_dual_extrusion = Both

wipe_tower = False

wipe_tower_volume = 15

ooze_shield = False

filament_diameter = 1.75

filament_diameter2 = 0

filament_diameter3 = 0

filament_diameter4 = 0

filament_diameter5 = 0

filament_flow = 100.0

nozzle_size = 0.4

retraction_speed = 60

retraction_amount = 4.5

retraction_dual_amount = 16.5

retraction_min_travel = 1.5

retraction_combing = All

retraction_minimal_extrusion = 0.02

retraction_hop = 0.075

bottom_thickness = 0.2

layer0_width_factor = 150

object_sink = 0.0

overlap_dual = 0.15

travel_speed = 150.0

bottom_layer_speed = 20

infill_speed = 0.0

solidarea_speed = 0.0

inset0_speed = 0.0

insetx_speed = 0.0

cool_min_layer_time = 5

fan_enabled = False

skirt_line_count = 2

skirt_gap = 3.0

skirt_minimal_length = 150.0

fan_full_height = 0.5

fan_speed = 100

fan_speed_max = 100

cool_min_feedrate = 10

cool_head_lift = False

solid_top = True

solid_bottom = True

fill_overlap = 15

perimeter_before_infill = False

support_type = Lines

support_angle = 60

support_fill_rate = 15

support_xy_distance = 0.7

support_z_distance = 0.15

spiralize = False

simple_mode = False

brim_line_count = 20

raft_margin = 5.0

raft_line_spacing = 3.0

raft_base_thickness = 0.3

raft_base_linewidth = 1.0

raft_interface_thickness = 0.27

raft_interface_linewidth = 0.4

raft_airgap_all = 0.0

raft_airgap = 0.22

raft_surface_layers = 2

raft_surface_thickness = 0.27

raft_surface_linewidth = 0.4

fix_horrible_union_all_type_a = False

fix_horrible_union_all_type_b = False

fix_horrible_use_open_bits = False

fix_horrible_extensive_stitching = False

plugin_config = (lp1

.

object_center_x = -1

object_center_y = -1

[alterations]

start.gcode = ;Sliced at: {day} {date} {time}

;Basic settings: Layer height: {layer_height} Walls: {wall_thickness} Fill: {fill_density}

;Print time: {print_time}

;Filament used: {filament_amount}m {filament_weight}g

;Filament cost: {filament_cost}

;M190 S{print_bed_temperature} ;Uncomment to add your own bed temperature line

;M109 S{print_temperature} ;Uncomment to add your own temperature line

G21 ;metric values

G90 ;absolute positioning

M82 ;set extruder to absolute mode

M107 ;start with the fan off

G28 X0 Y0 ;move X/Y to min endstops

G28 Z0 ;move Z to min endstops

G1 Z15.0 F{travel_speed} ;move the platform down 15mm

G92 E0 ;zero the extruded length

G1 F200 E3 ;extrude 3mm of feed stock

G92 E0 ;zero the extruded length again

G1 F{travel_speed}

;Put printing message on LCD screen

M117 Printing...

end.gcode = ;End GCode

M104 S0 ;extruder heater off

M140 S0 ;heated bed heater off (if you have it)

G91 ;relative positioning

G1 E-1 F300 ;retract the filament a bit before lifting the nozzle, to release some of the pressure

G1 Z+0.5 E-5 X-20 Y-20 F{travel_speed} ;move Z up a bit and retract filament even more

G28 X0 Y0 ;move X/Y to min endstops, so the head is out of the way

M84 ;steppers off

G90 ;absolute positioning

M106 S0 ;turn fan off

;{profile_string}

start2.gcode = ;Sliced at: {day} {date} {time}

;Basic settings: Layer height: {layer_height} Walls: {wall_thickness} Fill: {fill_density}

;Print time: {print_time}

;Filament used: {filament_amount}m {filament_weight}g

;Filament cost: {filament_cost}

;M190 S{print_bed_temperature} ;Uncomment to add your own bed temperature line

;M104 S{print_temperature} ;Uncomment to add your own temperature line

;M109 T1 S{print_temperature2} ;Uncomment to add your own temperature line

;M109 T0 S{print_temperature} ;Uncomment to add your own temperature line

G21 ;metric values

G90 ;absolute positioning

M107 ;start with the fan off

G28 X0 Y0 ;move X/Y to min endstops

G28 Z0 ;move Z to min endstops

G1 Z15.0 F{travel_speed} ;move the platform down 15mm

T1 ;Switch to the 2nd extruder

G92 E0 ;zero the extruded length

G1 F200 E10 ;extrude 10mm of feed stock

G92 E0 ;zero the extruded length again

G1 F200 E-{retraction_dual_amount}

T0 ;Switch to the first extruder

G92 E0 ;zero the extruded length

G1 F200 E10 ;extrude 10mm of feed stock

G92 E0 ;zero the extruded length again

G1 F{travel_speed}

;Put printing message on LCD screen

M117 Printing...

end2.gcode = ;End GCode

M104 T0 S0 ;extruder heater off

M104 T1 S0 ;extruder heater off

M140 S0 ;heated bed heater off (if you have it)

G91 ;relative positioning

G1 E-1 F300 ;retract the filament a bit before lifting the nozzle, to release some of the pressure

G1 Z+0.5 E-5 X-20 Y-20 F{travel_speed} ;move Z up a bit and retract filament even more

G28 X0 Y0 ;move X/Y to min endstops, so the head is out of the way

M84 ;steppers off

G90 ;absolute positioning

;{profile_string}

start3.gcode = ;Sliced at: {day} {date} {time}

;Basic settings: Layer height: {layer_height} Walls: {wall_thickness} Fill: {fill_density}

;Print time: {print_time}

;Filament used: {filament_amount}m {filament_weight}g

;Filament cost: {filament_cost}

;M190 S{print_bed_temperature} ;Uncomment to add your own bed temperature line

;M104 S{print_temperature} ;Uncomment to add your own temperature line

;M109 T1 S{print_temperature2} ;Uncomment to add your own temperature line

;M109 T0 S{print_temperature} ;Uncomment to add your own temperature line

G21 ;metric values

G90 ;absolute positioning

M107 ;start with the fan off

G28 X0 Y0 ;move X/Y to min endstops

G28 Z0 ;move Z to min endstops

G1 Z15.0 F{travel_speed} ;move the platform down 15mm

T2 ;Switch to the 3rd extruder

G92 E0 ;zero the extruded length

G1 F200 E10 ;extrude 10mm of feed stock

G92 E0 ;zero the extruded length again

G1 F200 E-{retraction_dual_amount}

T1 ;Switch to the 2nd extruder

G92 E0 ;zero the extruded length

G1 F200 E10 ;extrude 10mm of feed stock

G92 E0 ;zero the extruded length again

G1 F200 E-{retraction_dual_amount}

T0 ;Switch to the first extruder

G92 E0 ;zero the extruded length

G1 F200 E10 ;extrude 10mm of feed stock

G92 E0 ;zero the extruded length again

G1 F{travel_speed}

;Put printing message on LCD screen

M117 Printing...

end3.gcode = ;End GCode

M104 T0 S0 ;extruder heater off

M104 T1 S0 ;extruder heater off

M104 T2 S0 ;extruder heater off

M140 S0 ;heated bed heater off (if you have it)

G91 ;relative positioning

G1 E-1 F300 ;retract the filament a bit before lifting the nozzle, to release some of the pressure

G1 Z+0.5 E-5 X-20 Y-20 F{travel_speed} ;move Z up a bit and retract filament even more

G28 X0 Y0 ;move X/Y to min endstops, so the head is out of the way

M84 ;steppers off

G90 ;absolute positioning

;{profile_string}

start4.gcode = ;Sliced at: {day} {date} {time}

;Basic settings: Layer height: {layer_height} Walls: {wall_thickness} Fill: {fill_density}

;Print time: {print_time}

;Filament used: {filament_amount}m {filament_weight}g

;Filament cost: {filament_cost}

;M190 S{print_bed_temperature} ;Uncomment to add your own bed temperature line

;M104 S{print_temperature} ;Uncomment to add your own temperature line

;M109 T2 S{print_temperature2} ;Uncomment to add your own temperature line

;M109 T1 S{print_temperature2} ;Uncomment to add your own temperature line

;M109 T0 S{print_temperature} ;Uncomment to add your own temperature line

G21 ;metric values

G90 ;absolute positioning

M107 ;start with the fan off

G28 X0 Y0 ;move X/Y to min endstops

G28 Z0 ;move Z to min endstops

G1 Z15.0 F{travel_speed} ;move the platform down 15mm

T3 ;Switch to the 4th extruder

G92 E0 ;zero the extruded length

G1 F200 E10 ;extrude 10mm of feed stock

G92 E0 ;zero the extruded length again

G1 F200 E-{retraction_dual_amount}

T2 ;Switch to the 3rd extruder

G92 E0 ;zero the extruded length

G1 F200 E10 ;extrude 10mm of feed stock

G92 E0 ;zero the extruded length again

G1 F200 E-{retraction_dual_amount}

T1 ;Switch to the 2nd extruder

G92 E0 ;zero the extruded length

G1 F200 E10 ;extrude 10mm of feed stock

G92 E0 ;zero the extruded length again

G1 F200 E-{retraction_dual_amount}

T0 ;Switch to the first extruder

G92 E0 ;zero the extruded length

G1 F200 E10 ;extrude 10mm of feed stock

G92 E0 ;zero the extruded length again

G1 F{travel_speed}

;Put printing message on LCD screen

M117 Printing...

end4.gcode = ;End GCode

M104 T0 S0 ;extruder heater off

M104 T1 S0 ;extruder heater off

M104 T2 S0 ;extruder heater off

M104 T3 S0 ;extruder heater off

M140 S0 ;heated bed heater off (if you have it)

G91 ;relative positioning

G1 E-1 F300 ;retract the filament a bit before lifting the nozzle, to release some of the pressure

G1 Z+0.5 E-5 X-20 Y-20 F{travel_speed} ;move Z up a bit and retract filament even more

G28 X0 Y0 ;move X/Y to min endstops, so the head is out of the way

M84 ;steppers off

G90 ;absolute positioning

;{profile_string}

support_start.gcode =

support_end.gcode =

cool_start.gcode =

cool_end.gcode =

replace.csv =

preswitchextruder.gcode = ;Switch between the current extruder and the next extruder, when printing with multiple extruders.

;This code is added before the T(n)

postswitchextruder.gcode = ;Switch between the current extruder and the next extruder, when printing with multiple extruders.

;This code is added after the T(n)

[dgrogandesign 0]

Hi this seems to have gone stagnant. Is there anyone out there who knows whats going on here?

Thanks.

[00D00B 58]

What filament do you print ? ABS I guess ?

[valcrow 144]

I believe this is caused by the top/bottom thickness. If you set it to 0, you will notice this goes away. (but obviously that's not really an option unless you want an open top, but try to slice it with that setting to 0 to see if it's what's affecting it).

There is a reason for this though, it places material under the next layer's inner perimeter. While annoying, it serves quite an important function IMO. On larger details it will be lines which makes sense, but if you have a gradually sloping side, it will appear to 'vibrate' because the lines are small.

Anywho, that's what I think it is, and if your object looks good it's working as intended.

*edit, I just had another thought after I posted... It could also be that your object has way too many polygons.

Edited June 16, 2016 by Guest

[dgrogandesign 0]

I am using ABS yes.

valcrow - I tried on your suggestion to turn off the top/ bottom thickness but this did not help. I have also tried reducing the polygon count to see if that helps. It didn't. Ive included a screenshot of my object in wireframe mode. The troublesome areas seem to be the fingers which seem to have a cleaner mesh but they are square polygons. could this be the problem?

Also included more cura screenshots.

Thanks.

Edited June 16, 2016 by Guest

[swademc 0]

I still have this issue in 4.8. Inner walls are not continuous curves. This was supposedly fixed in 4.8 but still persists, even with default profiles. The problem is visible in the g-code, so it is not the fault of the printer. Printer jitters around the inner walls, causing vibration and print defects.

[GregValiant 1,251]

If you can - post an  STL / 3mf file.  I've never seen those jittery moves before and I don't think it's any Cura settings that do that.  Cura may be confused over something in the model.