Hi all, I am curious to hear if you have been able to print eSUN ABS+ at all. I used to print on my old printer slowly but no issues. With the K2 I can’t ever go past the first 3 layers. It seems to get stuck in the heat break area of the nozzle. I suspected of hearcreep but I am starting to doubt it now.
I have been slowing it down to see if I can make it work but no luck. I tried without retraction and that’s the furthest I have ever gone. And the flow test too on Creality print went to 17 mm3/s.
I have read so many things about this filament not being great but regardless. I want a explanation as to why it works or doesn’t.
Anyone facing the same issues? How did you overcome it?
I haven’t used eSun, but the first thing that comes to mind is to set up a filament pre-set to eSun’s specs. They only list Ender-3, but the K2 should track the same. My apologies if you already did that.
It was retractions, mainly around the tree supports that had lots of little retractions in small area. I wasted a ton of filament testing it but I got there eventually.
Too many retractions too close create a pressure build up inside the nozzle which then creates resistance and it stops m extruding.
It was never actually clogged, it was just not extruding and I just had to pull the filament back from the top of the extruder while it was at printing temperature and then push it back a little then tell it to extrude and it would start extruding again.
If you have the same issue, check your retractions.
I have found the same thing. I have a ton of esun abs and the clogging was doing my head in.
I changed the Travel threshold from 1mm to 60 mm in filament profile overrides. This got the retractions down dramatically. Allowing me to complete long 2.5hr prints with tall thin posts.
To tackle heat creep, I have also dropped bed temp to 90 from 100 & nozzle 265 to 260 after 3 layers. Chamber 41 degrees. (Keep hot end magnetic cover on).
Finding this Reddit post is what got my focus off from solely focusing on heat to retractions:
For the heet creep use a good cooling paste on the nozzle. I have used the stuff creality send with the printer after 100/150 hours printing i was getting problems and errors like hottend unexpected temperatuur. Then i repaste the nozzle with some old already open tube artic silver 5 i used for some cpu an gpu in the past. That really helped no errors better constant nozzle temp. I dont have looked for the specs of the artic silver 5 it works that only matters for me.