A G-code path goes beyond max print height.

[Luro02]

Bambu Studio Version

1.9.3

Where is the application from?

Bambu Lab github releases

OS version

Windows 11

Additional system information

No response

Printer

Bambu Lab P1S 0.4 nozzle

How to reproduce

1. Open the attached project file with Bambu Studio
2. Slice the file
3. In the bottom right corner, the error appears: (note: it jumps from layer 1230 to some large number that isn't fully visible)

My guess is that this is, because of the variable layer height.

Actual results

Expected results

The file should slice correctly.

Project file & Debug log uploads

Pot+boy+planter-upside-down-A1-mini.zip debug_Tue_Jul_16_09_22_25_17008.log.zip

Checklist of files to include

• [X] Log file
• [X] Project file

[Luro02]

Here is another model, this time without variable layer height enabled. Maybe it is the tree supports? shapr3d_export_2024-07-20_09h07m.zip

[Luro02]

lamp-base.zip

Maybe this is because of the "Precise Z height" option? I have that enabled by default in my profile

[Cilsor]

Hey there. I had a similar issue when trying to print a doll face. Arachne / classic walls, and changing the quality of the adaptive layer height sometimes fixed it, sometimes didn't. However, what fixed it 100% of the time was disabling the new scarf beta feature. My guess is that the scarf feature, which also varies layer height, can have a bug when combined with higher quality adaptive layer height settings.

Am I right to guess you had scarf joints enabled with these models you had gcode height errors on?

[Cilsor]

Oh yup, I can definitely see it in image 2 and 3. You were using scarf. I think that's the culprit here. Two different systems trying to come up with variable height layers and one of the two put something out of bounds when working together.

With scarf being the newer feature, I expect the bug is there.

[XunZhangBambu]

@Luro02 It seems to be related to arachne wall generator and scarf seam. If you need to continue printing, you can use classical wall generator or disable scardf seam. The specific reason is currently under analysis.