Thanks Skinny, I decided to take apart my hot end and everything was going well until I had to yank out the temperature sensor. I've printed less than two rolls of filament. When I saw the hot end unit, I have a good feeling now I know why my prints are the way they are. Looks like my printer sharted itself.
Now the fun part of trying to figure out how to take apart the UM2 to replace the white temperature wire. Ordered about $130+ worth of replacement parts from fbrc8. My rear fan has always made a weird noise so ordered one of those to see if it suppose to make that noise or not.
I've only printed with PLA so far, so would think it would have lasted longer.
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skinny-kid 65
How many hours have you been printing? Have you checked the integrity of the PTFE coupler?
It only lasts for a limited amount of time before deforming and causing issues with filament getting fed through properly. I have replaced mine a few times already (my machine has over 1500 hours on it so far) and after I replace it the machine runs like a dream again.
This link will instruct you you how to do it.
http://support.3dverkstan.se/article/56-replacing-the-ptfe-coupler
Let us know how it goes and if this remedies your issue.
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