Brim not generated for all items on the plate

[Barrnet]

Cura Version

5.6

Operating System

Windows 11

Printer

Flying Bear Ghost 6

Reproduction steps

Brim settings used: Brim minimum length: 50mm Brim Width: 8mm Brim line count 16 Brim Distance 0.2 Brim replace support: unchecked Brim Only on Outside: checked Brim inside avoid margin: 2.5mm Smart Brim: checked

Actual results

Some item on the plate don't have the brim. Is visible in every gcode visualizzer

Expected results

Brim should be generated for all the items on the plate

Add your .zip and screenshots here ⬇️

unfortunately I don't saved the project because I noticed the issue only after printing the file. I will attach the .gcode file and the Cura profile used. profine and gcode.zip

[Barrnet]

pezzi_voron.zip Ok, I tried to slice the same file and saved the project with only the file affected by the problem.

[Barrnet]

Disabling the support generation (Tree type) fix this problem with the brim correctly generated.

[GregValiant]

Thanks for the report. In the screenshot it sure looks like the models without brims are not resting on the build plate. Within the gcode of your first post they don't appear on the "initial layer" at all. That's another indicator that they were floating in air during the slice. Under "Preferences / Configure Cura" one of the options is "Automatically drop models to build plate". Enable that and bring the models back in. Another option is to select each model in turn, and check that the "Z" location is "0". If neither of those fixes it then recreate the situation in Cura, use the "File | Save Project" command, zip the 3mf file that is created, and post the zip folder here.
Right now I don't see a bug here, but rather a couple of models resting on the build plate while the others are floating in air.

[Barrnet]

Thanks for the report. In the screenshot it sure looks like the models without brims are not resting on the build plate. Within the gcode of your first post they don't appear on the "initial layer" at all. That's another indicator that they were floating in air during the slice. Under "Preferences / Configure Cura" one of the options is "Automatically drop models to build plate". Enable that and bring the models back in. Another option is to select each model in turn, and check that the "Z" location is "0". If neither of those fixes it then recreate the situation in Cura, use the "File | Save Project" command, zip the 3mf file that is created, and post the zip folder here. Right now I don't see a bug here, but rather a couple of models resting on the build plate while the others are floating in air.

They are sitting on the build plate and disabling the support without toucing anything on the buildplate fix the issue with the brim. Please check my previus comment for the Cura project.