I got a new Biqu H2V2 for my Ender 3 pro , since myold hotend started getting unreliable and that was a great excuse for yet another upgrade.

I wasn’t happy with the carriage holder I printed, so I wanted to print a new one. After afew hours of printing, I needed to abandon one part, since it was incredibly messy with blobs of PLA gooped on the print. Since I needed the new carriage mount, I didn’t think anything off it and simply abandoned that part and continued the other ones.

Today, I saw that the heating block is completely gooped up with PLA (see pictures). So now, I got two questions:

  1. How should I remove that gunk? I was thinking o| carefully peeling of everything without the silicone sleeve while the hotend is at a low PLA-bending temp, like 150°C, or 175°C.
  2. What caused this? Flowrate too high (the prints look the part)? Too fast extrusion? Heatcreep?

Thanks in advance. (:

  • Fenderfreek@lemmy.worldEnglish
    1·
    14 hours ago

    I see. I probably should have been more specific, sorry. If you do try torching the parts, be very careful with the heater block. They are usually aluminum, and can melt much more easily than the steel and brass parts.

    • Prunebutt@slrpnk.netOPEnglish
      1·
      13 hours ago

      Nah, don’t worry about it. You used the correct term, which happens to have an amiguous name (you’d translate the German term to “thread-cutting drill”).

      Thanks for the heads up. Is it very unadvisable to leave the PLA in the threading if nozzle and heatbreak have proper contact?

      • Fenderfreek@lemmy.worldEnglish
        1·
        13 hours ago

        I think if you can ensure they all thread together without a problem, it doesn’t need to be perfectly clean, but I suspect that will be difficult if there is melted filament in the threads at all