Object got knocked over?
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Yes it was
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What temp did it fail on?
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Can you post your full config.g?
Did you happen to get a heater fault message?
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@Phaedrux 195°
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@Phaedrux
I did not get a error message... why?; Configuration file for Duet 3 (firmware version 3) ; executed by the firmware on start-up ; ; generated by RepRapFirmware Configuration Tool v3.1.1 on Thu Jun 04 2020 17:41:46 GMT+0200 (Central European Summer Time) ; General preferences G90 ; send absolute coordinates... M83 ; ...but relative extruder moves M550 P"Blimy" ; set printer name M669 K1 ; select CoreXY mode ;; Drives ; XY M569 P0.0 S1 ; physical drive 0.2 goes backwards - left motor M569 P0.2 S1 ; physical drive 0.1 goes backwards - right motor ;Z M569 P0.3 S0 ; physical drive 1.2 goes backwards - left motor M569 P0.4 S0 ; physical drive 1.1 goes backwards - right motor M569 P0.5 S0 ; physical drive 1.0 goes backwards - rear motor ; Extruder M569 P1.0 S0 ; Extruder Motor M584 X0.0 Y0.2 Z0.3:0.4:0.5 E1.0 ; set drive mapping M671 X-31.5:437.4:198.5 Y63:63:440 S30.0 ; Z-Level leadscrews at left (connected to E6(9)) and right (connected to E2) of X axis (S=MaxCorrection) M350 X16 Y16 Z16 E16 I1 ; configure microstepping with interpolation M92 X80.00 Y80.00 Z400.00 E420.00 ; set steps per mm M566 X900.00 Y900.00 Z12.00 E120.00 ; set maximum instantaneous speed changes (mm/min) M203 X30000.00 Y30000.00 Z300.00 E1200.00 ; set maximum speeds (mm/min) Z180 M201 X500.00 Y500.00 Z20.00 E250.00 ; set accelerations (mm/s^2) M906 X2000 Y2000 Z1000 E600 I30 ; set motor currents (mA) and motor idle factor in per cent M84 S30 ; Set idle timeout ; Axis Limits M208 X0 Y0 Z0 S1 ; set axis minima M208 X380 Y360 Z400 S0 ; set axis maxima ;; Endstops ##################### TODO M574 X1 S1 P"!0.io1.in" ;Induktions geber X1=low end ; configure active-high endstop for low end on X via pin io2.in M574 Y2 S1 P"!0.io2.in" ;Induktions geber Y2=High end ; configure active-high endstop for high end on Y via pin io1.in M574 Z1 S2 ; Configure Z-probe endstop for low end on Z ;; Z-Probe ; BL Touch: M950 S0 C"0.io4.out" ; create servo pin 0 for BLTouch M558 P9 C"0.io4.in" H5 F120 T6000 ; set Z probe type to bltouch and the dive height + speeds G31 P500 X0 Y30 Z2.12 ; set Z probe trigger value, offset and trigger heigh ; IR Probe: ;M558 P8 C"0.io0.in" H5 F120 T6000 ; set Z probe type to unmodulated and the dive height + speeds ;G31 P500 X0 Y25 Z1.45 ; set Z probe trigger value, offset and trigger height ; M564 S0 to disable axis limits. ;M557 X10:380 Y40:380 P10:10 ; Chriss - define mesh grid M557 X50:350 Y50:350 P3:3 ; https://duet3d.dozuki.com/Wiki/Gcode#Section_M557_Set_Z_probe_point_or_define_probing_grid ;; Heaters ; Bed ; Tune in with: M303 H0 S70 (60=Temp) (M500 to save) ; Show curren tsettings M307 H0 M308 S0 P"0.temp2" Y"thermistor" T100000 B4138 ; configure sensor 0 as thermistor on pin temp2 M950 H0 C"0.out2" T0 Q10 ; create bed heater output on 0.out2 and map it to sensor 0 and Frequency (Q) 10Hz ; MOVED to override M307 H0 A340 C140.0 D5.5 S1.0 V0.0 B0 ; disable bang-bang mode for the bed heater and set PWM limit M140 H0 ; map heated bed to heater 0 M143 H0 S120 ; set temperature limit for heater 0 to 120C ; Hotend ; Tune in with: M303 H1 S270 (60=Temp) (M500 to save) ; Show current settings M307 H1 M308 S1 P"0.temp3" Y"thermistor" T500000 B4723 C1.196220e-7 ; configure sensor 1 M950 H1 C"0.out3" T1 ; create nozzle heater output on 0.out3 and map it to sensor 1 M143 H1 S280 ; set temperature limit for heater 1 to 280C ; MOVED to override M307 H1 A340 C140.0 D5.5 S1.0 V0.0 B0 ; disable bang-bang mode for heater and set PWM limit ;; Fans ##################### TODO ; Fan for the printed part: M950 F0 C"0.out9" Q500 ; create fan 0 on pin 1.out4 and set its frequency M106 P0 S0 H-1 C"Part" ; set fan 0 value. Thermostatic control is turned off ; Fan for the Hotend: M950 F1 C"0.out8" Q500 ; create fan 1 on pin 1.out5 and set its frequency M106 P1 S1 H1 T45 C"Hotend" ; P="set fan 1" S="value" H="Thermostatic control Heater No." T=" is turned on at 45°C" ; Fan for expansion case Alwas on ;M950 F9 C"1.out8" Q500 ;M106 P9 S1 H-1 ; Tools M563 P0 S"TooL0" D0 H1 F0 ; define tool 0 G10 P0 X0 Y0 Z0 ; set tool 0 axis offsets G10 P0 R0 S0 ; set initial tool 0 active and standby temperatures to 0C ;; Filament Sensor ##################### TODO M591 D0 P5 C"0.io3.in" R40:120 E3.0 S0 ; Duet3D laser sensor for extruder drive 0, connected to endstop input 3 (E0), tolerance 40 to 120%, 3mm comparison length, disabled ; Custom settings are not defined ; Miscellaneous M575 P1 B57600 S1 ; Enable PanelDue M911 S10 R11 P"M913 X0 Y0 G91 M83 G1 Z3 E-5 F1000" ; set voltage thresholds and actions to run on power loss ; Configure the case fan: M308 S9 P"mcu-temp" Y"mcu-temp" A"mcu" ; define sensor 9 to be mcu temperature M950 F2 C"0.out7" Q500 ;M106 P2 S100 C"Case" ;M106 P2 S0 C"Case" ; Keep it off for now M106 P2 S1 L0.25 B0.5 H9 T40:60 C"Case" ; cooling electronics space thermostatic on sensor 9 35 to 50C ; Enable the LED stripe and turn it off M950 F3 C"0.out6" Q500 ; LED on out6 ground on top pin, plus on 3rd pin from top (V_OUTLC1) M106 P3 C"LED" S0 M501 ; load saved parameters from non-volatile memory (config-override.g) -
Can you test if you can reliably extrude at 195c? That might be too cold and it clogged?
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Good point.. I will finish the current print first. ... do you expect that PLA will fail already at 195?
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Depends on the PLA. Depends on how much volume you're trying to flow. Depends on how accurate your thermistor values are.
You could do a volumetric flow rate calibration at that temp to see if your speed height width combination was more than the hotend could handle at that temp.
Did you try to print it again?
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@Chriss Just try using an extrusion multiplier of 95%. Parts are surprisingly very tolerant of under extrusion, but very intolerant of over extrusion.
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@Chriss I didn't look at the pictures earlier. Now that I have, I can see the problem - I've had exactly the same thing myself in the past. It's the overhang curling up at the edges. Increase the part cooling or re-arrange the ducting.
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@deckingman You have all of my respect but I do not agree here. The cooling works very well at all of the below layers/overhangs. The hotend tool is a bondtech assembly with cooling bla bla.... I do not expect that there technique do not work.
And the knock over happens always after 70-85mm. I would expect a earlier knock over if that would be a thermal issue.
Cheers, Chriss
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this yellow surface looks a lot like printbite. printbite requires bit higher temp than other surfaces so maybe that's your problem... trying 65 or 70C for the bed might solve your problem.
as for the
I would expect a earlier knock over if that would be a thermal issue.
actually, for most thermal issues it depends on the print temp so with the design of that tower it will curle up more or less depending on the print temp so whatever temp you reach there is a problem... also, just like overextrusion, things tend to stack up so delayed failing... also same nozzle "catching" at low height does not produce same amount of force to the base as when it does the same thing higher up etc etc..
IMHO you need to get that bed to at least 65 for that build plate, and you need to look at the print to see why it catched and on what, hard to tell that from images but in 99% cases, as said already, it is either "curled up" so catched by nozzle or overextruded so catched by nozzle
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@Chriss Well I'm not going to argue with you but that last picture you posted clearly shows the left hand edge of the part curling upwards.
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@deckingman I think that you see something which is not present at the actual part. I could make a picture from the x or y site. But that is not necessary any more, the reduction to 95% extrusion did it. The last print was successful now and the surface (outer wall) looks far better now.
I guess that I have a new job now, I will print it now with 96, 97, 98 ...
@arhi: It is a printbite indeed. I raised the temp already a bit, the adhesion is not bad at all. But playing with the temperature is a very good idea anyway.
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@Chriss said in Object got knocked over?:
@arhi: It is a printbite indeed. I raised the temp already a bit, the adhesion is not bad at all. But playing with the temperature is a very good idea anyway.
I use printbite for many years and I'm in love with it, but it requires ~10C more than what you can read about ideal temp for other surfaces (glass, glue, tack..) ... for e.g. I print PLA at 70C, ABS at 110C. Jason in his documentation writes PLA is 60-65C for e.g. but for me 70C works much much better. You do get a bit of e.foot with 70C but it holds on like no tomorrow
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@arhi I think that it is not a big surprise that the adhesion is fine at 70°C. PLA is more on the soft site at 70°C than on the hard site.
Ohhh my English is not the yellow of the egg at 4am.
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@Chriss you could check that your z leadscrews are still moving freely at the height you get the issue, a bit of binding might cause the bed to lower unevenly or not enough.
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@Chriss said in Object got knocked over?:
.......................... that is not necessary any more, the reduction to 95% extrusion did it. The last print was successful now and the surface (outer wall) looks far better now.
That's in line with what I expected when I made the suggestion. For info, you might find this piece of research by Michael Hackney of interest https://www.sublimelayers.com/2017/12/musing-on-under-extrusion-prepare-to.html
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@Chriss The bottom looks like you are not getting enough squish on the first layer. Adjust the Z offset to get the nozzle closer to the bed so that you can barely see the individual lines of the filament Even then, you might need to use a brim or raft or tabs on the ends.
