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I'm having trouble with this print, what am I doing wrong?

carlose_martin

By carlose_martin
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carlose_martin

carlose_martin 0

Posted
Posted · I'm having trouble with this print, what am I doing wrong?

Good night!

I'm currently trying what I thought it would be a simple print, a round "staple" with a loop on top.

The first part prints very well, but when the nozzle reaches the flat top, the nozzle begins pushing the top down, as if it were trying to print lower than the current height. The loop in the flat top also prints with the nozzle touching the printed material (and pushing it to the borders with the movement).

The results, as you can see, are not pretty:

2014 09 26 00.02.422014 09 26 00.02.562014 09 26 00.03.182014 09 26 00.03.33

What am I doing wrong with this print? Is it a problem of printer bed calibration or something else?

Thanks for your advice!

P.D.: I'm using these settings:

 


[profile]
layer_height = 0.06
wall_thickness = 0.8
retraction_enable = True
solid_layer_thickness = 0.8
fill_density = 100
nozzle_size = 0.4
print_speed = 60
print_temperature = 220
print_temperature2 = 0
print_temperature3 = 0
print_temperature4 = 0
print_bed_temperature = 70
support = None
platform_adhesion = Brim
support_dual_extrusion = Both
wipe_tower = False
wipe_tower_volume = 15
ooze_shield = False
filament_diameter = 2.85
filament_diameter2 = 0
filament_diameter3 = 0
filament_diameter4 = 0
filament_flow = 100.0
retraction_speed = 40.0
retraction_amount = 4.5
retraction_dual_amount = 16.5
retraction_min_travel = 1.5
retraction_combing = False
retraction_minimal_extrusion = 0.02
retraction_hop = 0.0
bottom_thickness = 0.3
layer0_width_factor = 100
object_sink = 0.0
overlap_dual = 0.15
travel_speed = 150.0
bottom_layer_speed = 20
infill_speed = 0.0
inset0_speed = 0.0
insetx_speed = 0.0
cool_min_layer_time = 5
fan_enabled = True
skirt_line_count = 1
skirt_gap = 3.0
skirt_minimal_length = 150.0
fan_full_height = 0.1
fan_speed = 100
fan_speed_max = 100
cool_min_feedrate = 10
cool_head_lift = False
solid_top = True
solid_bottom = True
fill_overlap = 15
support_type = Grid
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 = 0.22
raft_surface_layers = 2
fix_horrible_union_all_type_a = True
fix_horrible_union_all_type_b = False
fix_horrible_use_open_bits = False
fix_horrible_extensive_stitching = False
plugin_config = 
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
	;{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 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}
	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 3th 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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    Labern

    Labern 774

    Posted
    Posted · I'm having trouble with this print, what am I doing wrong?

    Its trying to print a overhang with no support. Im guessing you are using PLA. print colder and slower. 190 degree and 30mm/s. Make sure your fans are on 100% and increase your layer height to 0.1mm. Larger layer heights print overhangs better.

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    SandervG

    SandervG 1,521

    Posted
    Posted · I'm having trouble with this print, what am I doing wrong?

    Have you tried turning the heated bed off, print it on a piece of blue M3 tape and print 2 at the same time?

    The radiate of the heated bed can make overhangs 'hang' more, and by printing 2 they have both more time to cool, especially at the end.

     

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    carlose_martin

    carlose_martin 0

    Posted
    • Author
    Posted · I'm having trouble with this print, what am I doing wrong?

    Wow, thanks a lot for the advice!

     

    Its trying to print a overhang with no support. Im guessing you are using PLA. print colder and slower. 190 degree and 30mm/s. Make sure your fans are on 100% and increase your layer height to 0.1mm. Larger layer heights print overhangs better.

     

    Yes, I'm using PLA. I thought the bevel at 45 degrees would be good enough to print without support, but I completely forgot about the temperature

     

    Have you tried turning the heated bed off, print it on a piece of blue M3 tape and print 2 at the same time?

    The radiate of the heated bed can make overhangs 'hang' more, and by printing 2 they have both more time to cool, especially at the end.

     

    I tried now. I don't have blue tape, so what I did was leave the heated bed on for the first layer (I added a brim to both prints) then turn it of as soon as the base was done.

    With that and Labern's advice, it printed perfectly. I'll be sure to write this in my printing notes, I can see how it would be very useful for other printing projects.

    Thank you very much!

     

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    Labern

    Labern 774

    Posted
    Posted · I'm having trouble with this print, what am I doing wrong?

    Just a word of caution, changing the bed temp can cause the print to come unstuck from the build plate. Glass shrinks at a different rate as PLA and this can cause the print to pop off.

    You can get away with it on some small prints like the one your trying to print but I wouldn't recommend it on larger ones.

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    carlose_martin

    carlose_martin 0

    Posted
    • Author
    Posted · I'm having trouble with this print, what am I doing wrong?

    Just a word of caution, changing the bed temp can cause the print to come unstuck from the build plate. Glass shrinks at a different rate as PLA and this can cause the print to pop off.

    You can get away with it on some small prints like the one your trying to print but I wouldn't recommend it on larger ones.

     

    Makes sense. I'll try with stick glue first, and if that doesn't work, I'll see if I can find M3 tape.

     

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