Lately, the upper flank of the thread is missing when I print it in a vertical orientation. Strangely enough, other curves and overhangs on the same object – including the lower flank of the thread – are printed perfectly fine. The issue occurs regardless of the filament used.
Are you printing TPU here?
No, in this case it was ABS, the same with PETG HF.
Slicing seems fine, assuming you have minimally 2 walls.
What is the nozzle diameter, bead width and layer height?
Too hot could give the opposite effect, but this is weird behaviour.
Maybe some others have a thought.
You might try it with a 0.4mm nozzle. But still, I cannot think of a reason for this behavior.
That might actually be a useful tip – I’ll give it a try when I get the chance. Thanks a lot!
In fact, I’ve only been printing with a 0.6 mm nozzle for a few weeks; before that, I always used a 0.4 mm one. By the way, I printed the thread vertically by mistake – printed horizontally, it should have significantly higher tensile strength.
