Prusa Mini+ hotend PTFE gap?
Newbie here and recently got my Prusa Mini+ up and running, been printing PLA and PETG with relative ease, but now I'm getting some underextrusion issues/uneven layers. Going through some troubleshooting and cold pulls, I noticed a blob on the filament where I believe the PTFE stops against the hotend, should I replace it before troubleshooting further? This was a pre-assembled Mini with the original PTFE tube installed.
fix
There is a gap in the system somewhere. This might help:
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Chuck H
3D Printer Review Blog
Progress
Thank you for your quick reply.
I have now adjusted the hotend like in the video, but when I did a new cold pull to clean any potential filament from the hotend (there was some white PETG left) I see the blob is a bit further down, could the gap be between the nozzle and heatbreak?
