Cura G-code Save Error - Unsupported Operand Types

[beamter_bastelt 0]

Dear Cura Support Team,

I am writing to report an issue I’ve encountered while using your software. When attempting to save a sliced object as G-code, I receive the following error message:

 

unsupported operand type(s) for +: 'float' and 'NoneType'

This error prevents me from successfully saving the G-code file, which is a critical step in my 3D printing workflow.

Steps to Reproduce:

1. Open the STL file in Cura.
2. Adjust the necessary print settings.
3. Slice the model.
4. Attempt to save the G-code file.

Expected Result: The G-code file should save without any errors.

Actual Result: The error message appears, and the file does not save.

I have already tried the following troubleshooting steps without success:

• Ensuring all settings are correct and do not contain unusual values.
• Checking if the issue is model-specific or related to a particular setting.
• Updating Cura to the latest version.
• Resetting configuration files and reinstalling Cura.

I am currently using Cura version 5.7.0, and my operating system is Windows11. I would appreciate any guidance or assistance you can provide to resolve this issue.

Thank you for your attention to this matter.

Best regards, Peter Loeb

cura.log

[nallath 1,120]

It seems to be caused by the z-offset plugin. I think that it will work if you disable it.

[Slashee_the_Cow 268]

@nallath that would explain these lines in the log:

2024-04-05 09:21:21,108 - ERROR - [MainThread] UM.Qt.Bindings.OutputDeviceManagerProxy._writeToDevice [163]:   File "C:\Users\peter\AppData\Roaming\cura\5.7\plugins\ZOffsetPlugin\ZOffsetPlugin\ZOffsetPlugin.py", line 144, in _filterGcode
2024-04-05 09:21:21,108 - ERROR - [MainThread] UM.Qt.Bindings.OutputDeviceManagerProxy._writeToDevice [163]:     adjusted_z = round(float(result.group(2)) + z_offset_value, 5)
2024-04-05 09:21:21,109 - ERROR - [MainThread] UM.Qt.Bindings.OutputDeviceManagerProxy._writeToDevice [163]: TypeError: unsupported operand type(s) for +: 'float' and 'NoneType'

 

[beamter_bastelt 0]

Hy Team,

I wanted to express my sincere gratitude for your helpful advice regarding the deactivation of the Z-offset plugin. Your guidance was incredibly beneficial and resolved the issues I was facing.

 

Thank you for taking the time to assist me; your support is greatly appreciated.

 

Best Regadrs Peter