Hello, I just got the dual extruder v3.1. All Single extrusion prints have turned out great. But Every time I try to print with both nozzles Either one of the extruders start to make this odd creeking noise when it retracts then jams shortly after. When I go to clear the jam, there is always a large gap between the end of the filament and the nozzle where the filament melts. Its almost as it is not priming correctly or getting caught when priming after a nozzle switch. I don’t think it is heat creep (correct me if I’m wrong) because even though it jammed, i let it print and it eventually started extruding again when the retraction per square cm decreased. There is a lot of resistance when I try to push filament manually even when following the guide of how to load filament
My retraction settings are
Nozzle change speed: 5mm/s
Nozzle change Distance: 8mm
Slicer: cura (not lulzbot)
Anybody let me know if/what additional info is needed to solve this issue.
Ends of filament
New fan duct to prevent heat creep