I have been having some major problems printing in the last few weeks. I have a PRUSA i3 and it's been printing really well for just about 2 years now.
But now problems have started, its the same problem all the time, the PLA gets jammed in the extruder and when I pull out the bit that is jammed it looks all mashed up from the hob bolt and all the shavings are jammed up in the extruder.
I changed the hob bolt, same thing.
The odd thing is though some colours are worse than others, I have some clear PLA, nope this gets jammed very quick, some will go longer before jamming.
My only thought is the PLA roles I have all come from different places, some are quite old...
Could this be they are damp, the house is not damp but they are all stored on an open shelf, I have seen lots of posts about you should keep it in containers to stop it getting damp but I cant see anything on what happens to it when it does get damp.