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Posted · jittery inner wall

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

5a331e2226a57_ScreenShot2016-06-14at10_29_34.thumb.png.d78ba0cdd1fee78dc606f5cb4c31daa0.png

5a331e223b8ee_ScreenShot2016-06-14at10_29_30.thumb.png.127b2a86ec0d445a711f069f5be8de49.png

Cura profile string:

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5a331e223b8ee_ScreenShot2016-06-14at10_29_30.thumb.png.127b2a86ec0d445a711f069f5be8de49.png

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    Posted · jittery inner wall

    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)

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    Posted (edited) · jittery inner wall

    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. :D

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

    Edited by Guest
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    Posted (edited) · jittery inner wall

    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.

    5a331e3a1bc2a_ScreenShot2016-06-16at14_05_14.thumb.png.125a7881cd450c7021a51fb74f91590c.png

    5a331e3934b06_ScreenShot2016-06-16at14_07_22.thumb.png.bebf359e8a6c037fbc597d0b2c79903c.png

    5a331e3a42817_ScreenShot2016-06-16at14_07_28.thumb.png.538093bca4e8f1f73b244a15a986c936.png

    5a331e3a1bc2a_ScreenShot2016-06-16at14_05_14.thumb.png.125a7881cd450c7021a51fb74f91590c.png

    5a331e3934b06_ScreenShot2016-06-16at14_07_22.thumb.png.bebf359e8a6c037fbc597d0b2c79903c.png

    5a331e3a42817_ScreenShot2016-06-16at14_07_28.thumb.png.538093bca4e8f1f73b244a15a986c936.png

    Edited by Guest
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