Ok I am getting zits. First let me clarify. these are EXTREMELY minor. SO minor that most of the time I can ignore them as irrelevant.
but on some models or with some filaments they become obnoxious and I would like to eliminate them or at least reduce them.
but ANYTHING and I mean ANYTHING I do 100% of the time makes it worse. every time. no exceptions.
I understand if its at the beginning try extra restart modifications. if its at the end try coast modifications.
problem is EITHER of those always makes it worse no matter how small the tweak. maybe my tweaks are not small enough? ie I am passing the sweet spot and swinging the other way to worse again?
also HOW do I identify whether its at the start or end of a layer? no matter how carefully I watch the print in progress I simply can not determine where its happening (beginning or end) its always a couple layers later I see the zit but its already printed it. (probably because of how small they are. for example this zipper is barely visible. (image attached) enough that I had a tough time capturing it on camera.
Any suggestions on a diagnostics process to fine tune this? its VERY consistent and not random so it should be possible to tune it out or at least reduce it.
random start points is horrible in extreme. it does not retract when doing it with that method so you end up with internal strings and a weak print so I always leave it set to optimize for speed. (it seems the open space inside the model is not considered open space so it does not retract)