"Actual volumetric flow rate" difference between print profiles on simple geometry with stock profiles - look poor in slicer, and also in print. Bugs?
After seeing quite significant shadow issues and artefacts in prints especially with multiple objects I somehow came to compare flow profiles on some very simple geometry.
Some interesting observations in the slicing visualisation - that also seem to be visible in the prints:
These images are the same geometry, using prusament default pla, 0.2 Layer, with the only change being the print profile - speed, structural, balanced.
What interests me is only the balanced visualisation shows a smooth actual flow rate and actual speed rate - and i see similar results when i print.
If the visualisation is to be believed then the printer is speeding and slowing at random rates throughout the print creating defects.
I also see that when on balanced, and reducing the infill from 10 to below 5 % I get a sudden line across the actual flow rate, coinciding with the top of the next object.
The graphics are showing that the speed changes from 30mm /s to 40mm/ sec at this boundary.
I would love to hear what the dev's think about it - I dont think its only about visualisation, as the result is visible in the print.
The photo shows from left to right An early print with seemingly wet filament on 0.28 draft, after dryring on 0.28 draft, and then on 0.2 Structural. The prints had no top layer, and 0% fill.
