GregValiant 1,454
The gcode I generated with your model doesn't show any problems. The Z progresses upward and there are inner and outer walls on all layers. The flow rate is consistent between 4.06 and 4.15 mm³/sec (using my settings).
Post that "Bad" gcode file. I can analyze the flows with MS Excel, and the toolpaths with AutoCad.
If the Cura preview looks OK then there aren't likely to be problems in the Gcode. The preview function certainly isn't perfect but it does get toolpaths and extrusions right.
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Slashee_the_Cow 541
It can, but the best way to find out is to try again. Don't forget 🐄🥈Slashee's Sliver Rule: Small scale testing is your friend. You don't need to do the whole print. Just slice it using the exact same settings but move it down through the build plate so that it'll start a little bit before the problem occurs.
Depending on your print settings, that in itself doesn't rule out a problem there. The wall will have a different flow rate to the infill.
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