How do I prevent this....

what are your layer height settings Print Settings ->Layers and Perimeters and speed under Print Settings ->Advanced

 

yeah I would try going down try 180 and 175 then 175 and 170. Mine ususally runs at 185 185 but the environments have alot to do with it

 

well right off we have major differences here I have all my extrusion widths to be 0 or automatically determined
and teh the other thing thing is you have all you speeds set to be very slow so if you think about the filament is probably "pooping out" (basically oozing out when the extruder is hot) and then catching on to the print and then catching and then the extruder drags what was "poop" across

My speeds down the list are
50
50
70%
50
50
30
60
50
45
my travel is also 140 which gets between things quicker
I am also printing at 200 microns but you can try these at 100 microns and see if it make a difference
I just think you may have been a bit slow

I would try the speed before the extrusion width

Hope this helps let me know

 

I kind of think that may be it. I just have not seen so much threading ever in any of my prints, just not sure, so hope this helps. I hate to ask but is it just in this print or others as well? Could be when you have multiple objects versus a single object being printed. The other thing I forgot to mention was the RANDOM value look for itnot sure where it is but it basically makes each layer start at a different RANDOM location so the entry points rarely are seen when I first did the 5m stepped cube I did two facing each other, you could easily see the line that was made when the printer moved into each part when RANDOM was off turned it on and now you can't tell might be slightly less efficient but it wouldn't be off by much.



on a side note: Spiderman would be proud of those webs