I have owned my prusa for more than a year now and finally got it working with the MK2.5 upgrade.
Everything calibrates just fine, but I am having some terrible printing quality now and weird flow..
I am using firmware 3.3.1, Slic3r 1.41 (no matter the version things stay the same).
My calibration is perpendicular with 0.02 degree skew as indicated by the Support menu.
Here are some examples of what I am having now:
This is what I had before the upgrade (right) compared with what I have now (left):
The thing is, I think the flow is terrible somehow..
I am using the default steps now after a factory reset (133). With that I feel like I am getting huge over-extrusion but even when I go to 0.9 flow I see over extrusion on perimeters and gaps on top layers..
When I calibrate the extruder, my steps become 143, but then flow must become less than 0.85 (more like 0.79) to look "good" (quality and gaps remain the same as uncalibrated).
Filament is PETG from a brand which I have been using for a WHILE.
Also seems like stringing has started to occur exactly after the upgrade.
Tolerances are way off too.. Before I could get to 0.1mm tolerances or less just by doing extruder steps calibration..
Anybody had this issue and know where to start?
I narrowed it down to Slic3r too. Two direct extruder printers. Same E3DV6 hotends, same Slic3r settings, same outcomes. Only difference being one has steps at 144(prusa) and another has 190(anycubic). Both must have flow rate at 0.9, both print identical prints. I will probably try to play around with other software instead of facing shenanigans from Slic3r.
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