Hello,

I've had my 'wolf for a few years now, she's been hit and miss. The original hot end, JR, actually worked fine. I "upgraded" to the JRX to handle polycarb and other high temp materials.

The JRX, though, even with simple PLA (fresh out of the vacuum sealed bag) , will get through about 3 layers of the print than jam up.

I've seen this now with PLA and ABS. Simple stuff. Each time I disengage the feed, pop off the Bowden from the hot end, and manually push some filament through. Most times it takes waaaay to much force to get it moving. I pull out the filament from the hot end, nip off the 1+ inches of filament that was in the hot end (which has now a larger diameter) and feed in raw filament. Usually works.

BUT this is not acceptable. Print failure rate is about 90% currently.

Ideas?

Situation:
- new 0.5mm nozzle
- clean filament
- feed stepper is fine
- Bowden is locked in place throughout print
- hot end temp is consistent