I’ve had my mini for about a year now and overall I’ve been happy with it. Lately, however, it has started printing fine for the first 30 minutes and then starts printing into the air but without filament coming out. No birds nest, just stops feeding. I cut off just the right amount of filament for the job just in case the spool was catching, but it still does it. Below are the parameters, I use lulzbot’s profiles for the materials. I just removed the filament from this last failed print and the end of the filament has been scored some and there’s an indent where the grooved feeder just dug into the filament and couldn’t feed. I’ve cleaned it several times, why would it jam up like this?
PLA - MAtterhackers 3mm