Additional bug slicing many copies.

[versaielle]

Cura Version

5.7.2

Operating System

Windows 11

Printer

S7

Name abnormal settings

No, no profile works.

Describe model location

Tried multiple locations on build plate.

Describe your model

Sliced a similar model with less layers and ultimate height with a total of 70 copies. This successfully slices with a a total of 50 copies. Watertight.

Add your .zip here ⬇️

This appears to be failing during thumbnail creation. Log file below:

2024-07-30 00:13:41,615 - INFO - [MainThread] UM.Backend.Backend.startEngine [96]: Started engine process: C:\Program Files\UltiMaker Cura 5.7.2\CuraEngine.exe
2024-07-30 00:13:41,616 - DEBUG - [MainThread] UM.Backend.Backend._backendLog [140]: [Backend] Calling engine with: ['C:\Program Files\UltiMaker Cura 5.7.2\CuraEngine.exe', 'connect', '127.0.0.1:49675', '']
2024-07-30 00:13:41,742 - DEBUG - [EngineOutputThread] UM.Backend.Backend._backendLog [140]: [Backend] [2024-07-30 00:13:41.741] [info] Sentry url: https://734f9ec9024f73e53701d59c3ffddfe3@o323038.ingest.sentry.io/4506257745510401
2024-07-30 00:13:41,743 - DEBUG - [EngineOutputThread] UM.Backend.Backend.backendLog [140]: [Backend] [2024-07-30 00:13:41.742] [info] Sentry config path: C:/Users/******/AppData/Roaming/cura/.sentry-native
2024-07-30 00:13:41,744 - DEBUG - [EngineOutputThread] UM.Backend.Backend._backendLog [140]: [Backend] [2024-07-30 00:13:41.742] [info] Starting sentry
2024-07-30 00:13:41,762 - DEBUG - [EngineOutputThread] UM.Backend.Backend._backendLog [140]: [Backend] [2024-07-30 00:13:41.762] [info] Connecting to 127.0.0.1:49675
2024-07-30 00:13:41,766 - DEBUG - [MainThread] UM.Backend.Backend._logSocketState [236]: Socket state changed to Connected
2024-07-30 00:13:41,766 - DEBUG - [MainThread] UM.Backend.Backend._onSocketStateChanged [225]: Backend connected on port 49675
2024-07-30 00:13:41,871 - DEBUG - [EngineOutputThread] UM.Backend.Backend._backendLog [140]: [Backend] [2024-07-30 00:13:41.871] [info] Connected to 127.0.0.1:49675
2024-07-30 00:13:43,921 - DEBUG - [MainThread] UM.Operations.OperationStack.push [72]: GroupedOp.(#=1) <UM.Operations.RemoveSceneNodeOperation.RemoveSceneNodeOperation object at 0x000001964A5FE470>, took 16ms
2024-07-30 00:14:10,675 - DEBUG - [MainThread] UM3NetworkPrinting.src.UltimakerNetworkedPrinterOutputDevice._checkStillConnected [264]: It has been 33.7792444229126 seconds since the last response for outputdevice hd4Xdf1WQXNlx1aRi8djshSN3TkNYevVbxBJY1FBL-M8, so assume a timeout
2024-07-30 00:14:10,840 - INFO - [MainThread] CuraEngineBackend.CuraEngineBackend._createSnapshot [331]: Creating thumbnail image (just before slice)...
2024-07-30 00:14:11,110 - DEBUG - [MainThread] UM.Scene.Camera._preferencesChanged [255]: Changing perspective mode to perspective.
2024-07-30 00:14:11,114 - DEBUG - [MainThread] UM.View.GL.ShaderProgram.load [61]: Loading [C:\Program Files\UltiMaker Cura 5.7.2\share\cura\resources\shaders\overhang.shader]...
2024-07-30 00:14:11,116 - DEBUG - [MainThread] UM.View.GL.ShaderProgram.load [61]: Loading [C:\Program Files\UltiMaker Cura 5.7.2\share\cura\resources\shaders\transparent_object.shader]...
2024-07-30 00:14:11,118 - DEBUG - [MainThread] UM.View.GL.ShaderProgram.load [61]: Loading [C:\Program Files\UltiMaker Cura 5.7.2\share\cura\resources\shaders\striped.shader]...
2024-07-30 00:14:11,665 - INFO - [MainThread] CuraEngineBackend.CuraEngineBackend.slice [348]: Starting to slice...
2024-07-30 00:14:11,665 - DEBUG - [MainThread] CuraEngineBackend.CuraEngineBackend.slice [368]: Going to slice build plate [0]!
2024-07-30 00:14:12,376 - DEBUG - [MainThread] UM3NetworkPrinting.src.UltimakerNetworkedPrinterOutputDevice._checkStillConnected [264]: It has been 35.480350732803345 seconds since the last response for outputdevice hd4Xdf1WQXNlx1aRi8djshSN3TkNYevVbxBJY1FBL-M8, so assume a timeout
2024-07-30 00:14:12,625 - DEBUG - [MainThread] UM3NetworkPrinting.src.Cloud.CloudOutputDeviceManager._onGetRemoteClustersFinished [170]: Synced cloud printers with account.
2024-07-30 00:14:14,310 - DEBUG - [MainThread] UM3NetworkPrinting.src.UltimakerNetworkedPrinterOutputDevice._reconnectForActiveMachine [281]: Reconnecting output device after timeout.
2024-07-30 00:14:14,369 - DEBUG - [MainThread] CuraEngineBackend.CuraEngineBackend._onStartSliceCompleted [580]: Sending slice message took 2.703065872192383 seconds
2024-07-30 00:14:15,290 - DEBUG - [EngineErrorThread] UM.Backend.Backend._backendLog [140]: [Backend] [libprotobuf ERROR C:.conan\8eede8\1\src\src\google\protobuf\io\coded_stream.cc:194] A protocol message was rejected because it was too big (more than 524288000 bytes). To increase the limit (or to disable these warnings), see CodedInputStream::SetTotalBytesLimit() in third_party/protobuf/io/coded_stream.h.
2024-07-30 00:14:15,291 - DEBUG - [EngineOutputThread] UM.Backend.Backend._backendLog [140]: [Backend] [2024-07-30 00:14:15.289] [error] Failed to parse message:
2024-07-30 00:14:15,292 - DEBUG - [EngineOutputThread] UM.Backend.Backend._backendLog [140]: [Backend] ¸õ�ý�
2024-07-30 00:14:15,293 - DEBUG - [EngineOutputThread] UM.Backend.Backend._backendLog [140]: [Backend] £�û��àè�Íâ2�ø�û�fÖÍÀ0eÁ
2024-07-30 00:14:15,294 - DEBUG - [EngineOutputThread] UM.Backend.Backend.backendLog [140]: [Backend] æ�A�¬ÆÀÚâgÁÊç�AèÀ¢À��YÁ5ç�AÝkù@2�1Á þ�A^�ì@î 1Á@¸�Ayxæ@�µ4Áid�A'ò�A�-/Á!�A2��A��1ÁÒè�A þ�AF/0Á© �A��'AÓq-Át°�AåÅ'A|,Á·��A�ñ'Am2-Áû3�A�!&Aä�)Á�Ñ�Aí�&A#�*Á. AÒ¤&AR¹*Á�¬�A�!&Aä�)Á�Ñ�AR¤%AÐI(Áqù�Aí�&A#�*Á. A )AÚ�-Á�¶�AD«)A�L-Á�¦�A>Â)A�ã,Á�¶�AÞj'AB�-ÁÌ� AåÅ'A|,Á·��A��'AÓq-Át°�AÒ¤&AR¹Á�¬�Aô!&Aõ+ÁKJ A��&A±�+Áäá�A��&A±�+Áäá�Aô!&Aõ+ÁKJ Að(&A��,ÁèL A��(A��'ÁtÌ�AL�)Arp%Á
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2024-07-30 00:15:02,231 - DEBUG - [MainThread] CuraEngineBackend.CuraEngineBackend._terminate [421]: Attempting to kill the engine process
2024-07-30 00:15:02,232 - DEBUG - [MainThread] CuraEngineBackend.CuraEngineBackend._terminate [427]: Killing engine process
2024-07-30 00:15:02,236 - DEBUG - [MainThread] CuraEngineBackend.CuraEngineBackend._terminate [430]: Engine process is killed. Received return code 1
2024-07-30 00:15:02,237 - DEBUG - [MainThread] UM.Backend.Backend._createSocket [294]: Previous socket existed. Closing that first.
2024-07-30 00:15:02,241 - DEBUG - [MainThread] UM.Backend.Backend._logSocketState [232]: Socket state changed to Listening

[HellAholic]

We have a ticket on this issue on the backlog. This happens when the size of the model (models) exceeds the capacity of the protocol used. A protocol message was rejected because it was too big (more than 524288000 bytes). To increase the limit (or to disable these warnings), see CodedInputStream::SetTotalBytesLimit() in third_party/protobuf/io/coded_stream.h.

For Internal reference:
CURA-11103

[versaielle]

Is there a way to disable thumbnail creation in the meantime?

[HellAholic]

Thumbnail creation fails silently, it attempts to create a thumbnail 10 times and if it can't then there will be no thumbnail image in the file (ufp). I don't believe you can disable that without modifying the cura code.
If your model size times the number of copies is more than 500MB then you will get the message regardless of whether the thumbnail is generated or not.

Here is the thumbnail for 160 models being sliced. model size 100kb

A workaround that you might be able to try is to reduce the number of polygons on your models. To do this you can use different 3D software tools but the easiest is the 3D builder from Microsoft (it's also free).

• Load the model
• Select it
• Go to edit tab
• Click on Simplify
• Adjust the slider until the point the quality is still good but the number of polygons is reduced
• Save your model

In example below I cut the model size in half by reducing the polygons by 2 levels, and the quality is still the same.

[versaielle]

Thank you for the information. Reducing the complexity of the model works.