Start/stop of inner perimeter loops is causing artifacts on the outside

[unlimitedbacon]

These artifacts are all over the outside of this print. The gcode shows that these are caused by the start/stop of the inner perimeter loops (not the outer loops). The pause for the retraction at the end of the inner loop is causing a small blob, which overlaps the outer loop.

I think we should consider using the same seam hiding techniques as the outer loop on the inner loops.

[ishapiro]

I am seeing the same issue when printing to a Monoprice Dela Mini from MatterControl 2.19.17.

I have verified that this is a slicing issue by slicing the same model in Cura 4.1 and then printing the g-code from MatterControl. This prints without artifacts.

*** After further investigation this may just be an issue with the default slicer settings for my printer. I was able to improve results by changing "Start End Overlap" from 90% to 5%, "Coast at End" from 3mm to 5mm and slowing down the speed of the outside perimeter.

I am not claiming that the slicer cannot be improved in this area, but it may be possible to work around this issue.