I built my i3v about a year ago and have been printing successfully for quite some time. Just in the past 2 months though I have had issues printing.

I can get maybe 1 in 20 to finish correctly.

Problem: Prints no longer finish. They print perfectly up to a certain height and then it sputters some filament out and then stops. (see attached photo).

<a data-flickr-embed="true" href="https://www.flickr.com/photos/plackslayer/28244105465/in/dateposted-public/" title="20160711_103812"><img src="https://c2.staticflickr.com/8/7572/28244105465_8b1d2a54b2_k.jpg" width="2048" height="1536" alt="20160711_103812"></a><script async src="//embedr.flickr.com/assets/client-code.js" charset="utf-8"></script>

I have rebuilt the extruder and seated the Z axis (X and Y are still perfect). Everything so far should work but it just doesn't and I'm absolutely lost.

I have tried these filaments and successfully printed using them in the past:

PLA Pro+ Red
PLA Glow in the dark
PETG green/blue/orange
ABS Black

Multiple different companes (HatchBox, eSun, etc.).

The hobbed bolt seems to pick a time to eat into the filament and then it ends. I have cleaned it as well as varied the screws holding the filament to the bolt.

Help!

Thanks in advance,
Plack

p.s. yes I have googled and tried multiple things - nothing has fixed it yet.