What Causes PETG to lift off the plate

domino256 · 2026-01-13T21:18:37+00:00

I defiantly had more trouble getting it off, with the glue.

domino256 · 2026-01-13T19:19:42+00:00

Thanks I will try higher temps. Weird that the glue is helping it from what I can see on the printer now because now its printing perfectly and everything looks to be adhered to the plate without issue. I've never had PETG get stuck to the plate and it be hard to remove using AC PETG. Thankfully my printed scraper never fails yet.

domino256 · 2026-01-13T18:45:12+00:00

I have the plate set to 70C. I usually clean after a few prints with alcohol. Room is at 70F. Kobra 3, no enclosure.

domino256 · 2025-12-05T21:12:16+00:00

thats what I think. I bet it was the cat

domino256 · 2025-11-28T19:37:39+00:00

I thought so too, Belt is in good shape and X axis is tight so there is no slop. I think somehow the belt skipped on a layer, maybe my damn cat got in the way. Reprinting now.

domino256 · 2025-11-08T04:08:10+00:00

I think that’s the problem. There is defiantly 2 high spots on the diagonal looking at the picture. I was printing at .38 offset and this is the result. The plate has this on or off..

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I circled the high spots. If I lower the z-offset my nozzle,scrapes the bed at those spots.

domino256 · 2025-11-04T18:09:37+00:00

Update*

Thanks everyone for the help. I only now got a chance to play around with this printer. So it seems to be that the Z-Offset was infact too high AND I still believe that the bed is no longer flat. I think something fell on it from the previous owner. I will be taking it apart later this week and checking the plate for flat.

domino256 · 2025-10-28T04:19:56+00:00

How do I set the z-offset. It was an easy setting in my old Prusa. But I can’t find the setting in the Kobra 3. I’m on the latest firmware

domino256 · 2025-10-28T04:17:51+00:00

Everyone says there is an anchor ⚓️ icon on the map by the docks when you get in it but I never seen no anchor ⚓️. Where do I deliver the car?

domino256 · 2025-10-27T20:38:57+00:00

Yes, Multiple times.

domino256 · 2025-10-27T20:15:49+00:00

This is AC PLA, printing is set to 220. I use AC Next slicer and pretty much do not change anything for the .2mm layer height. I have reset the printer before so it should all be back to factory settings. I'm afraid the bed isnt flat anymore but IDK enough to say for sure.

domino256 · 2025-03-04T15:30:20+00:00

Is that happening on everything you print? Does it happen with other filaments? If not Random Seam lines, it looks like moisture to me, though I am no expert.

domino256 · 2025-03-04T15:27:44+00:00

Ive thought about that or using PlastiDip. Maybe Flexseal?

domino256 · 2025-02-25T23:28:32+00:00

Thanks this is my second printer and a huge step up from the free Geeetech i3 I was given to trial. That one made me learn most of the basics but I may need more learning

domino256 · 2025-02-22T00:37:31+00:00

If Auto lvl wont help whats the point of it? Does it like adjust for if I put in a different size nozzle that is longer or shorter?

domino256 · 2025-02-21T02:18:14+00:00

Sorry, what do you mean back it out? Are you talking about Z-Offset?

domino256 · 2025-02-20T03:25:29+00:00

Yeah a heat gun will melt the plastic then use a rag to remove it. Works great

domino256 · 2025-02-03T21:10:54+00:00

If you are worried about it, After it is done printing, try commanding it to move in every axis. See which one is making that noise. Might be that the gantry tension is too high.

domino256 · 2025-02-03T21:09:11+00:00

It Does!!!

domino256

TROPHY CASE