this post was submitted on 18 May 2026
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[–] ExcessShiv@lemmy.dbzer0.com 14 points 4 days ago* (last edited 4 days ago)

Filament buildup on the nozzle is my guess. Could be a Z-offset/first layer squish issue, filament moisture content too high, temp too high (or too low), nozzle hitting print during travel, small amount of oozing during travel moves, worn out nozzle with uneven nozzle shape/diameter, partial clog...there's a number of different things that can cause this.