[Troubleshooting] Clog Guy is back, and things have completely ceased making sense. - eviltoast

Hi guys. Please check my previous post for any background questions, I don’t have it in me to go over everything again.

Long story short, I was having issues with clogging that were being caused by my hotend not reaching the reported temp. After a few days of troubleshooting and diagnosing the motherboard and Klipper settings, I gave up and decided the motherboard was faulty (even though I could not perform any tests to determine in) and bought an SKR mini. I got that all set up, and the printer has been working flawlessly since then.

Until now.

Same exact problem; one print goes perfectly fine, next print, failing to extrude by the 4th layer. I removed the clog, restarted the print, now can’t even extrude the priming line. Fearing the worst, I disassemble the hotend, try hand feeding filament, and once again I am unable to push more than a few centimeters through before it gets clogged up. A probe thermometer reads ~160C while Klipper reports 200C.

What could possibly be happening here? The board is an aftermarket replacement from a completely different company, so I doubt it’s a recurring manufacturer defect, but I have no idea what else can be causing this.

At this point I’ve spent so much time and money trying to fix this printer that I could almost buy a new one, but at this point I’m not convinced even that would solve the problem.

  • papalonian@lemmy.worldOPEnglish
    1·
    6 months ago

    I’m sorry that I forgot to respond to your comment.

    Unfortunately, everything you mentioned here is working properly.

    • Gormadt@lemmy.blahaj.zoneEnglish
      1·
      6 months ago

      No worries

      And dang that it’s not one of those things as the things I mentioned in my comment are relatively easy to fix

      Edit: Best of luck on solving it and I really hope to see you post about how you fixed it as I’m hella curious

      • papalonian@lemmy.worldOPEnglish
        2·
        6 months ago

        I have a new board coming in tomorrow that I’m 90% positive will work just fine. I’m running low on suspects for what could be causing the failure, but I’m going to take a few precautions with this one (using only a surge protector, for starters) and see if it makes any difference in longevity. I guess I’ll make an update if it dies again, or maybe again after a month of continuous work. There are a few people that have been in every thread, I’m sure they’re curious as well haha