Filament Clog Issue  

RE: Filament Clog Issue

You probably need to adjust the extruder idler pressure, the screw at step 34 in this page:

https://help.prusa3d.com/en/guide/5-e-axis-assembly_169235

And it may help to read:

https://help.prusa3d.com/en/article/extrusion-problems-prevention_2027

Cheerio,

RE: Filament Clog Issue

Posted by: @raimonch

Hello Everybody I have an issue with my printer when I print any job it works fine up until some point where the filament seems to just get clogged, the gears click and leaves the filament in this state. 

That's pretty typical of what happens when the filament stops feeding due to a blockage or other problem lower in the hotend, below the extruder gears. The filament won't move, so the gears grind the filament.

How can I fix this issueand why does this happen? 

There are a lot of possible causes for extruder or hotend feed issues. Two of the most common are:

1. Excessive speeds resulting in filament being fed into the hotend at a faster rate than it can melt and move plastic. If you experience jams or extruder skips when printing some parts of larger prints (e.g., infill) where preset speeds are higher and there is enough room for the nozzle to come fully up to speed, this can start to happen mid way through an otherwise successful print. Try dialing speeds back 50% using the front knob mid-print and see if that helps. Obviously, this is most effective when you 1st hear any skipping and before the full jam. If this works, reduce speeds or read up on Maximum volumetric speed tuning (see notes below).
2. As many of us move into the summer months, expect to see a raft of "heat creep" problems. Printers that have worked just fine in cooler seasons suddenly start clicking and jamming. If your ambient print temperature nears 40C/104F, the air-cooled hotend design can't shed heat efficiently. This can cause low temp filament like PLA to soften prematurely. This can cause friction that causes the extruder motor to work harder and add yet more heat. It can cascade into a vicious cycle. Be sure you've got plenty of cool air movement, particularly if you're printing in an enclosure or hot area.

There are many other minor problems that can combine to cause this sort of problem. I've compiled more detailed notes on the most common problems here. 

RE: Filament Clog Issue

@diem

you are awesome, thank you.

RE: Filament Clog Issue

@bobstro

you are awesome, thank you.

RE: Filament Clog Issue

Any luck? Update us with what works to help the next person with the same issue please! Hope you're back in business.