Hi folks, I’ve had my ender 3 v2 for around 2 years and it’s been trouble-free until lately. Recently, I’ve had major issues with the first layer. I found a few worn components, so I got a dual gear extruder and replaced the nozzle, recald the esteps, bed level and z offset. Nothing I do seems to work.

The issue happens on the first layer when it first starts to extrude. The first 5mm or so of extrusion curls up behind the nozzle, then the extrusion sticks to the bed and it continues normally… Until it needs to starts a new extrusion, then the same thing happens…the curl.

I have to think it’s something with temperature, but I haven’t changed anything about the filament since these issues started.

Looking for any advice. Thanks!

  • Drudge@lemmy.worldOPEnglish
    2·
    2 years ago

    I gotta say a big thank you to everyone that responded. Your encouragement for me to take a breather and regroup with a cool head was much needed. Thank you all kind strangers :-)

    • Drudge@lemmy.worldOPEnglish
      1·
      2 years ago

      I’ve tried raising and lowering the z-offset…higher just makes it more angry and lower doesn’t get to the point that it fixes it

    • BillyJOcrystal@lemmy.worldEnglish
      1·
      2 years ago

      For issues with corners curling I either use a brim, or if a brim is not good for that model, I add a 1-2 layer circle at that corner in like tinkercad.

  • Lola_poodle@lemmy.worldEnglish
    1·
    2 years ago

    I use a glue stick specially made for 3D printing that works fantastic, but another great option is painters tape.

  • Piranha Phish@lemmy.worldEnglish
    1·
    2 years ago

    Have you tried a new nozzle?

    If your nozzle is worn flat (from scraping), it could affect your nozzle-bed gap (assuming no adjustment). If the internal diameter is worn (from long-term usage or an abrasive filament), it could cause a type of under-extrusion.

    • Drudge@lemmy.worldOPEnglish
      1·
      2 years ago

      Thanks for that link. I wouldn’t be surprised if this is my issue. I replaced a nozzle very recently and it seemed to improve things, but it quickly degraded. I also replwced the PTFE tube and likely did it wrong…though the symptoms existed before I replaced the tube. I also have a fan that has been on its way out for a while, so I could be getting heat creep. It could be a combo of all things. Either way, I have new fans on order and will be doing the rebuild. Thanks!