Is it possible for the leftover residue, of tape on a spool to be scraped into the feed? As the filament drags over the edges of the spool?
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3 points
Yeah, technically it could, but tape sticks really well to most filament. It is more likely that whatever came out of the nozzle was in a dead zone. The nozzle back bore is drilled with a steeper angle than a typical bit, but it is not so acute that there are no dead zones. Sometimes filament can sit in those zones, cook, and go wonky. It happens more often with high temp filaments like polycarbonate. I run a bit of purging filament with every change and rarely have problems.
I would be more concerned about extruder gear issues with residue over time.
2 points
