Thanks, There was an error in the stl. I have repaired it for you, and the strange artefacts as seen on the screenshot should have been disappeared.
But, I hadn't looked at your pictures good enough, as the same behavior appeared on the testcube. I don't think this is an slicer error, but a setting to tweak. It seems to me that you are printing with PLA, maybe to fast or on a to high temperature, or to less perimeters.
As a start to try:
- print slower to get the print cooled before the next layer, or the same as compared to the setting of your other slicers (maybe start with perimeter 30mm/s / the rest on 60mm/s
- maybe your layer time has to be longer, as -to me- it seems that the prints 'melts' because it has no change to cool before the next layer (I have set the minimum layer time on the Material tab to 5s for PLA).
- Maybe you have only one perimeter set in the style tab? Maybe adjust it to 3 (and / or the thickness to 0.8mm with 0.4mm path width) Did you set the pathwidth the same as your nozzle size?
- You have set some infill didn't you?
- It seems you have the filament diameter measured ok, didn't you?
Hopes this is a start. Otherwise: post your settings used.
screens and repaired model attached.
Bart