I printed a model in PETG shortly after a PLA print, which was fine, and it damaged the plate as shown. What’s odd is I’ve printed this same model with this same filament on this printer and it was fine. The temps in the gcode are the same between those prints.

Is this a Z-offset issue? Would PLA and PETG require different Z-offsets on the same printer?

Edit for more details: Creality Ender 3 V3 SE, stock plate.

  • user_6282638282@sopuli.xyzOPEnglish
    2·
    9 hours ago

    Sorry, I edited the post to add: Creality Ender 3 V3 SE, with the stock plate.

    It does indeed feel like a depression. Or more accurately, it feels like the texture surface has been removed. This seems to be confirmed by dark residue on the bottom of my print, which I can only see because I happened to be using a light filament.

    • baduhai@sopuli.xyzEnglish
      3·
      8 hours ago

      I also destroyed my Ender 3 V3 SE’s stock plate with petg. It just sticks too well to petg, I was only able to reliably print petg when I changed plates.

    • Atropos@lemmy.worldEnglish
      3·
      9 hours ago

      I guess this may indeed be a z issue, those diagonal lines could be when the nozzle moved from corner to corner without laying material down.

      I don’t think this has anything to do with the material or temperature or anything like that.

      I’m not overly familiar with the Ender, but maybe run a bed levelling protocol or other calibration option? The plate is probably toast unfortunately.

      Edit: did you switch plates between the PLA and petg? They might be different thicknesses if so.

      • user_6282638282@sopuli.xyzOPEnglish
        2·
        8 hours ago

        Thanks for confirming… luckily these plates are double-sided so I have a backup while I order a replacement. As I mentioned in another post, the auto-leveling leaves the nozzle just a bit too high and so I’ve consistently had to lower it. I primarily print in PLA and so usually do my bed-leveling prints in that material. I’ve previously used PET-G with zero issues, so something about the sequence of leveling and adjusting must be different this time around.

        Now I know to run the leveling each material change, which is annoying but probably not too surprising.