Cura: Slicing crashes specific to orientation and model

[davebelleville]

Application Version 3.4.0

Platform Win7-64

Printer Custom (Ender4-0.5 nozzle)

BKCTester_P2302.curaproject.3mf.curaproject.3mf.curaproject.zip

Steps to Reproduce Try to slice this specific model in the specific orientation

Actual Results Partial slicing then crash "Slicing engine for Cura has stopped working"

Expected results Sliced output

Additional Information Works fine in 3.3.1 There are other issues about the slicing engine but none specific to 3.4.0 that I found.

[smartavionics]

Hi, a workaround is to turn off the wall print order optimization. This is causing the crash due to a poor bit of coding on my part which I will fix. However, the bug is being triggered by your model which I think is broken in some way.

Firstly look at the solid view, it looks OK:

Then look at the x-ray view, those red areas are bad:

Finally, look at the sliced layer view, quite a lot of walls/roofs are missing:

So, I think the model has some problems which you need to fix.

Hope this helps.

[davebelleville]

I will fix my model, thank you. I just printed it. Not good. I will remember to check the model next time.

[smartavionics]

I have submitted the fix for this crash. Thanks again for making the effort to report it.

[LipuFei]

@davebelleville @smartavionics The fix has been merged. It will be included in the next release.