3D Printer stops heating midprint but keeps moving

What is the problem?

Lately my Anycubic i3 stops heating the hotend and the heatbed, midprint and at random layers, on random prints. It just drops to roomtemperature.
But it keeps going like nothing happened and moves like it should till its done.

What did you already try to solve it?

  • switched the mainboard
  • checked all wires
  • switched the hotend
  • switched the heatbed
  • sliced in different ways, used different models

Additional information about your setup (OctoPrint version, OctoPi version, printer, firmware, browser, operating system, ... as much data as possible)

  • Octoprint 1.4.0
  • Anycubic i3 Mega ( 2 years old, never had such problems at all )
  • Cura 4.5

No, I am at the point where I am clueless on what to do. Can't find any information on ppl who had the same problem and a solution to it. Mostly you find ppl who have broken wires at the heating elements...

You also may share the logs...

next time it occurs, i will...

Recv: ok
Send: N62062 G1 X159.258 Y78.379 E411.98065*84
Recv: echo: cold extrusion prevented
Recv: echo: cold extrusion prevented
Recv: ok
Send: N62063 G1 X159.818 Y78.808 E411.99238*93
Recv: echo: cold extrusion prevented
Recv: echo: cold extrusion prevented
Recv: ok
Send: N62064 G1 X160.47 Y79.078 E412.00412*97
Recv: echo: cold extrusion prevented
Recv: echo: cold extrusion prevented
Recv: ok
Send: N62065 G1 X161.169 Y79.17 E412.01584*106
Recv: echo: cold extrusion prevented
Recv: echo: cold extrusion prevented
Recv: ok
Send: N62066 G1 X161.868 Y79.078 E412.02756*86
Recv: echo: cold extrusion prevented
Recv: echo: cold extrusion prevented
Recv: ok
Send: N62067 G1 X162.52 Y78.808 E412.0393*84
Recv: echo: cold extrusion prevented
Recv: echo: cold extrusion prevented
Recv: ok
Send: N62068 G1 X163.08 Y78.379 E412.05103*102
Recv: echo: cold extrusion prevented
Recv: echo: cold extrusion prevented
Recv: ok
Send: N62069 G1 X163.509 Y77.819 E412.06276*83
Recv: echo: cold extrusion prevented
Recv: echo: cold extrusion prevented
Recv: ok
Send: N62070 G1 X163.779 Y77.167 E412.0745*109
Recv: echo: cold extrusion prevented
Recv: echo: cold extrusion prevented
Recv: ok
Send: N62071 G1 X163.871 Y76.468 E412.08622*88
Recv: echo: cold extrusion prevented
Recv: echo: cold extrusion prevented
Recv: ok
Send: N62072 G1 X163.779 Y75.769 E412.09795*81
Recv: echo: cold extrusion prevented
Recv: echo: cold extrusion prevented
Recv: ok
Send: N62073 G1 X163.509 Y75.117 E412.10968*94
Recv: echo: cold extrusion prevented
Recv: echo: cold extrusion prevented
Recv: ok
Send: N62074 G1 X163.08 Y74.557 E412.12142*110
Recv: echo: cold extrusion prevented
Recv: echo: cold extrusion prevented
Recv: ok
Send: N62075 G1 X162.52 Y74.128 E412.13315*108
Recv: echo: cold extrusion prevented
Recv: echo: cold extrusion prevented
Recv: ok
Send: N62076 G1 X161.868 Y73.858 E412.14488*80
Recv: echo: cold extrusion prevented
Recv: echo: cold extrusion prevented
Recv: ok
Send: N62077 G1 X161.169 Y73.766 E412.15661*95
Recv: echo: cold extrusion prevented
Recv: echo: cold extrusion prevented
Recv: ok
Send: N62078 G1 X160.47 Y73.858 E412.16833*100
Recv: echo: cold extrusion prevented
Recv: echo: cold extrusion prevented
Recv: ok
Send: N62079 G1 X159.818 Y74.128 E412.18007*85
Recv: echo: cold extrusion prevented
Recv: echo: cold extrusion prevented
Recv: ok
Send: N62080 G1 X159.258 Y74.557 E412.1918*110
Recv: echo: cold extrusion prevented
Recv: echo: cold extrusion prevented
Recv: ok
Send: N62081 M204 S3000*88
Recv: Setting Print and Travel Acceleration: 3000.00
Recv: ok
Send: N62082 M205 X10 Y10*43
Recv: ok
Send: N62083 G0 X159.137 Y74.715*31
Recv: ok
Send: N62084 G0 X158.741 Y74.411*25
Recv: ok
Send: N62085 G0 X158.446 Y74.896*31
Recv: ok
Send: N62086 G0 X158.131 Y75.655*25
Recv: ok
Send: N62087 G0 X158.045 Y76.312*31
Recv: ok
Send: N62088 G0 X159.923 Y132.963*37
Recv: ok
Send: N62089 G0 X160.04 Y133.449*22
Recv: ok
Send: N62090 M204 S1800*82
Recv: Setting Print and Travel Acceleration: 1800.00
Recv: ok
Send: N62091 M205 X8 Y8*41
Recv: ok
Send: N62092 G1 X159.359 Y133.805 E412.20458*111
Recv: echo: cold extrusion prevented
Recv: echo: cold extrusion prevented
Recv: ok
Send: N62093 G1 X158.783 Y134.312 E412.21734*110
Recv: echo: cold extrusion prevented
Recv: echo: cold extrusion prevented
Recv: ok
Send: N62094 G1 X158.343 Y134.942 E412.23012*111
Recv: echo: cold extrusion prevented
Recv: echo: cold extrusion prevented
Recv: ok
Send: N62095 G1 X158.067 Y135.658 E412.24288*104
Recv: echo: cold extrusion prevented
Recv: echo: cold extrusion prevented
Recv: ok
Send: N62096 G1 X157.968 Y136.42 E412.25566*90
Recv: echo: cold extrusion prevented
Recv: echo: cold extrusion prevented
Recv: ok
Send: N62097 G1 X158.053 Y137.183 E412.26843*97
Recv: echo: cold extrusion prevented
Recv: echo: cold extrusion prevented
Recv: ok
Send: N62098 G1 X158.319 Y137.905 E412.28122*101
Recv: echo: cold extrusion prevented
Recv: echo: cold extrusion prevented
Recv: ok
Send: N62099 G1 X158.749 Y138.541 E412.29399*101
Recv: echo: cold extrusion prevented
Recv: echo: cold extrusion prevented
Recv: ok
Send: N62100 G1 X159.316 Y139.056 E412.30673*96
Recv: echo: cold extrusion prevented
Recv: echo: cold extrusion prevented
Recv: ok
Send: N62101 G1 X159.837 Y139.352 E412.31669*100
Recv: echo: cold extrusion prevented
Recv: echo: cold extrusion prevented
Recv: ok
Send: N62102 G1 X160.4 Y139.539 E412.32656*97
Recv: echo: cold extrusion prevented
Recv: ok
Send: N62103 G1 X161.027 Y139.639 E412.33712*99
Recv: echo: cold extrusion prevented
Recv: echo: cold extrusion prevented
Recv: ok
Send: N62104 G1 X161.626 Y139.614 E412.34709*97
Recv: echo: cold extrusion prevented
Recv: echo: cold extrusion prevented
Recv: ok
Send: N62105 G1 X162.206 Y139.474 E412.35701*104
Recv: echo: cold extrusion prevented
Recv: echo: cold extrusion prevented
Recv: ok
Send: N62106 G1 X162.748 Y139.223 E412.36694*110
Recv: echo: cold extrusion prevented
Recv: echo: cold extrusion prevented
Recv: ok
Send: N62107 G1 X163.223 Y138.878 E412.37671*105
Recv: echo: cold extrusion prevented
Recv: echo: cold extrusion prevented
Recv: ok
Send: N62108 G1 X163.59 Y138.541 E412.38499*85
Recv: echo: cold extrusion prevented
Recv: echo: cold extrusion prevented
Recv: ok
Send: N62109 G1 X164.019 Y137.906 E412.39774*102
Recv: echo: cold extrusion prevented
Recv: echo: cold extrusion prevented
Recv: ok
Send: N62110 G1 X164.284 Y137.184 E412.41053*103
Recv: echo: cold extrusion prevented
Recv: echo: cold extrusion prevented
Recv: ok
Send: N62111 G1 X164.37 Y136.421 E412.42329*90
Recv: echo: cold extrusion prevented
Recv: echo: cold extrusion prevented
Recv: ok
Send: N62112 G1 X164.272 Y135.66 E412.43605*84
Recv: echo: cold extrusion prevented
Recv: echo: cold extrusion prevented
Recv: ok
Send: N62113 G1 X163.996 Y134.944 E412.44882*109
Recv: echo: cold extrusion prevented
Recv: echo: cold extrusion prevented
Recv: ok
Send: N62114 G1 X163.557 Y134.313 E412.4616*84
Recv: echo: cold extrusion prevented
Recv: echo: cold extrusion prevented
Recv: ok
Send: N62115 G1 X162.98 Y133.806 E412.47437*92
Recv: echo: cold extrusion prevented
Recv: echo: cold extrusion prevented
Recv: ok
Send: N62116 G1 X162.299 Y133.45 E412.48715*95
Recv: echo: cold extrusion prevented
Recv: echo: cold extrusion prevented
Recv: ok
Send: N62117 G1 X161.553 Y133.268 E412.49992*97
Recv: echo: cold extrusion prevented
Recv: echo: cold extrusion prevented
Recv: ok
Send: N62118 G1 X160.785 Y133.268 E412.51269*96
Recv: echo: cold extrusion prevented
Recv: echo: cold extrusion prevented
Recv: ok
Send: N62119 G1 X160.04 Y133.449 E412.52544*81
Recv: echo: cold extrusion prevented
Recv: echo: cold extrusion prevented
Recv: ok
Send: N62120 M204 S3000*82
Recv: Setting Print and Travel Acceleration: 3000.00
Recv: ok
Send: N62121 M205 X10 Y10*35
Recv: ok
Send: N62122 G0 X159.863 Y133.541*44
Recv: ok
Send: N62123 G0 X159.495 Y132.832*32
Recv: ok
Send: N62124 G0 F600 X159.495 Y132.832 Z7.9*45
Recv: ok
Send: N62125 G0 F3000 X164.314 Y76.468*113
Recv: ok
Send: N62126 G0 X165.622 Y56.34*41
Recv: ok
Send: N62127 M204 S1800*95
Recv: Setting Print and Travel Acceleration: 1800.00
Recv: ok
Send: N62128 M205 X8 Y8*42
Recv: ok
Send: N62129 G1 X164.834 Y56.34 E412.53855*109
Recv: echo: cold extrusion prevented
Recv: echo: cold extrusion prevented
Recv: ok
Send: N62130 G1 X172.328 Y63.834 E412.7148*110
Recv: echo: cold extrusion prevented
Recv: echo: cold extrusion prevented
Recv: ok
Send: N62131 G1 X172.328 Y65.248 E412.73831*92
Recv: echo: cold extrusion prevented
Recv: echo: cold extrusion prevented
Recv: ok
Send: N62132 G1 X163.42 Y56.34 E412.94781*84
Recv: echo: cold extrusion prevented
Recv: echo: cold extrusion prevented
Recv: ok
Send: N62133 G1 X162.005 Y56.34 E412.97134*108
Recv: echo: cold extrusion prevented
Recv: echo: cold extrusion prevented
Recv: ok
Send: N62134 G1 X172.328 Y66.662 E413.21411*94
Recv: echo: cold extrusion prevented
Recv: echo: cold extrusion prevented
Recv: ok
Send: N62135 G1 X172.328 Y68.076 E413.23763*86
Recv: echo: cold extrusion prevented
Recv: echo: cold extrusion prevented
Recv: ok
Send: N62136 G1 X160.591 Y56.34 E413.51365*110
Recv: echo: cold extrusion prevented
Recv: echo: cold extrusion prevented
Recv: ok
Send: N62137 G1 X159.177 Y56.34 E413.53717*106
Recv: echo: cold extrusion prevented
Recv: echo: cold extrusion prevented
Recv: ok
Send: N62138 G1 X172.328 Y69.49 E413.84645*110
Recv: echo: cold extrusion prevented
Recv: echo: cold extrusion prevented
Recv: ok
Send: N62139 G1 X172.328 Y70.905 E413.86998*91
Recv: echo: cold extrusion prevented
Recv: echo: cold extrusion prevented
Recv: ok
Send: N62140 G1 X157.763 Y56.34 E414.21253*96
Recv: echo: cold extrusion prevented
Recv: echo: cold extrusion prevented
Recv: ok
Send: N62141 G1 X156.713 Y56.34 E414.22999*105
Recv: echo: cold extrusion prevented
Recv: echo: cold extrusion prevented
Recv: ok
Send: N62142 G1 X156.373 Y56.364 E414.23566*83
Recv: echo: cold extrusion prevented
Recv: ok
Send: N62143 G1 X172.328 Y72.319 E414.61089*84
Recv: echo: cold extrusion prevented
Recv: echo: cold extrusion prevented
Recv: ok
Send: N62144 M105*34
Recv: ok T:24.7 /0.0 B:25.6 /0.0 @:0 B@:0
Send: N62145 G1 X172.328 Y73.733 E414.63441*93
Recv: echo: cold extrusion prevented
Recv: echo: cold extrusion prevented
Recv: ok
Send: N62146 G1 X155.134 Y56.54 E415.03877*107
Recv: echo: cold extrusion prevented
Recv: echo: cold extrusion prevented

You may try safe mode. If it works there, one of the installed plugins may be faulty.
BTW: Do you have Dry-Run installed?

Yes, got the dry-run in place.
As plugin is only use

  • Action Command Promp
  • PSU Control
  • Themeify

What do you mean by safemode?

For more information on safe mode click the word safemode :wink:

1 Like

now after rebooting the pi to safemode, my octopi isnt available anymore...It's going downhill -.-

OctoPi or OctoPrint?
Also: on what Raspberry Pi have you installed OctoPi/OctoPrint?

Installed it on a Pi 3 Model B with a Hama 4GB Card...was running fine for like a year now...I decided to go with a fresh install...so I can check try to ilsolate the problem...now that I have new parts on the printer and hopefully a fresh install soon

1 Like

Now after I installed the image from octoprint with the current version, I was able to access the octoprint again via the webbrowser...

BUT...after I updated octoprint and rebootet the system, I allways get the message page where it states " The OctoPrint server is currently not running"

:sleepy:

Have you tried clearing the browser cache? Crtl-F5 on Firefox.

yes did that too, completly empty

I'm clueless..on every problem I solve I run into another

Used balenaEtcher with Octoprint 0.17.0
Setup Wifi via SSH
octopi.local works fine
Reboot via SSH, octopi.local isnt available anymore :expressionless:

If you haven't yet, try a fresh SD card, yours might simply be dying

Imagine trying to figure out whats wrong, replace all the stuff...then just to see the SD Card in my pi was damaged -.-

Update

It wasn't the problem with the SD card...the same error occured again...I suspect the USB cable pi->printer after reseaching on google...
maybe the coommunication is struggling