Blobs on print walls and retraction tower has stringing only on topmost layer
I have been wrestling with this issue for a little while and am hoping someone may have some insight as to how to resolve it.
After finely tuning Linear Advance, I found the sweet spot for retraction distance and speed had lowered quite a bit. A distance longer than 0.15mm or a speed faster than 5mm/s appeared to cause stringing on a retraction tower.
Despite my best efforts, there are always strings on the very last layer of the tower that I can't seem to tune out. You may also notice that the notches on each post appear to get more withered moving from left to right. I'm unsure as to why either of these things are happeneing
Outside of retraction towers, some prints have blobs/zits on the walls where a travel move occurs. Strangely, this does not occur for all travel moves.
I'm a little puzzled as to how a retraction tower can print cleanly, but I'm getting noticeable blobs on what I'd consider to otherwise be easy-to-print parts.
RE: Blobs on print walls and retraction tower has stringing only on topmost layer
RE: Blobs on print walls and retraction tower has stringing only on topmost layer
RE:
I don't have any thoughts on the blobs but looking at the stringing tower, I'd call it a day and have a beer. This looks pretty good to me. Sure, you can go down that endless rabbit hole of optimizing multiple, interdependent dimensions of parameters, or take the heat gun to it. If you see such tiny strings in a stringing tower I suspect real life models will look great.
Formerly known on this forum as @fuchsr -- until all hell broke loose with the forum software...