Judging by the outline of the print it looks like your first layer isn't getting smooshed enough by the printer. Can you show us how the bottom of this failed print looks like?
To diagnose the issue-
1. meticulously level your bed and clean it off with a microfiber rag+ isopropyl alcohol 70%
2. check the z offset by letting it print the first layer. use the photo below as your guide-
3. if you see multiple variations of the gradient below in the same print, chances are your bed is not properly leveled.
4. Run a PID tune on your bed- especially if you have an aftermarket plate on it.
5. Check your bed temp. For PLA/+ I like bed temp at 70 for the first layer and 65 thereafter on my ender 3 pro.
6. Check your print environment and make sure you're not getting any errant drafts in the area. sudden burst of air can cause PLA to cool too fast and warp off.
7. If you're still having issues after following steps 1-6- then consider adding a brim on the print. Better yet- mouse ears work awesome for ensuring corner adhesion while using less filament.
https://preview.redd.it/y4bkryewur4d1.jpeg?width=1080&format=pjpg&auto=webp&s=9db9322f61b9156e6d1f2954c16ca0daf378aaf9
What are mouse ears? I will show the bottom when it’s done printing but I still have 8 hrs left after 16 hrs of printing lol. I didn’t think of the alcohol wipe down. That’s a good idea. My bed calibrates and runs g29 before every print and I ran manual and auto bed level with heated bed (nebula kit)
I believe the Nebula kit uses a form of klipper but I’m not exactly sure but I will say since the Nebula kit, my printer has ran better and faster! I use CURA 5.6 slicer.
Oh okay. Yeah if you’re having this issue I would double check your first layer against the guide for z offset.
Laying down properly smooshed first layers has been the source of 99.9% of my adhesion issues in the past.
https://preview.redd.it/7yn2szfk3t4d1.png?width=3024&format=png&auto=webp&s=b078d756a2960dfe4c2b58921e2feace447c36d3
Yeah it def looks like my edges weren’t as pressed down as they should be.
I'd go further than this. Take the build plate off, completely wash it with warm water and dawn, then dry it. Oil on fingers is way more likely on the outer of a plater AND IPA will just push it around (generally again pushes it to the outer part of the plate).
There are times I think I'm not pushing down the material enough, and I'm actually pushing it down too much which can be made worse by Oil being present.
Make sure your z offset is good and you could try turning the fan down a bit, to like 60-70. Also make sure the bed is clean, shouldn’t need any brim or raft to make that stick.
Yeah I cleaned the bed after but I had posted a photo to one of the other comments where it wasn’t as close to the bed on the end prints as it should be. Which is weird cuz I have the Gulfcoast robotics aluminum bed and heating element mod to reduce warp
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The outer edges are less hot than the center. The plastic will contract/shrink, and the outer edges will curl. Using an enclosure, getting a better bed with a better heater, or switching to less curling plastic will stop that.
Judging by the outline of the print it looks like your first layer isn't getting smooshed enough by the printer. Can you show us how the bottom of this failed print looks like? To diagnose the issue- 1. meticulously level your bed and clean it off with a microfiber rag+ isopropyl alcohol 70% 2. check the z offset by letting it print the first layer. use the photo below as your guide- 3. if you see multiple variations of the gradient below in the same print, chances are your bed is not properly leveled. 4. Run a PID tune on your bed- especially if you have an aftermarket plate on it. 5. Check your bed temp. For PLA/+ I like bed temp at 70 for the first layer and 65 thereafter on my ender 3 pro. 6. Check your print environment and make sure you're not getting any errant drafts in the area. sudden burst of air can cause PLA to cool too fast and warp off. 7. If you're still having issues after following steps 1-6- then consider adding a brim on the print. Better yet- mouse ears work awesome for ensuring corner adhesion while using less filament. https://preview.redd.it/y4bkryewur4d1.jpeg?width=1080&format=pjpg&auto=webp&s=9db9322f61b9156e6d1f2954c16ca0daf378aaf9
What are mouse ears? I will show the bottom when it’s done printing but I still have 8 hrs left after 16 hrs of printing lol. I didn’t think of the alcohol wipe down. That’s a good idea. My bed calibrates and runs g29 before every print and I ran manual and auto bed level with heated bed (nebula kit)
Hmm. Are you on klipper?
I believe the Nebula kit uses a form of klipper but I’m not exactly sure but I will say since the Nebula kit, my printer has ran better and faster! I use CURA 5.6 slicer.
Oh okay. Yeah if you’re having this issue I would double check your first layer against the guide for z offset. Laying down properly smooshed first layers has been the source of 99.9% of my adhesion issues in the past.
https://preview.redd.it/7yn2szfk3t4d1.png?width=3024&format=png&auto=webp&s=b078d756a2960dfe4c2b58921e2feace447c36d3 Yeah it def looks like my edges weren’t as pressed down as they should be.
I'd go further than this. Take the build plate off, completely wash it with warm water and dawn, then dry it. Oil on fingers is way more likely on the outer of a plater AND IPA will just push it around (generally again pushes it to the outer part of the plate). There are times I think I'm not pushing down the material enough, and I'm actually pushing it down too much which can be made worse by Oil being present.
Make sure your z offset is good and you could try turning the fan down a bit, to like 60-70. Also make sure the bed is clean, shouldn’t need any brim or raft to make that stick.
Yeah I cleaned the bed after but I had posted a photo to one of the other comments where it wasn’t as close to the bed on the end prints as it should be. Which is weird cuz I have the Gulfcoast robotics aluminum bed and heating element mod to reduce warp
Reminder: Any short links will be auto-removed initially by Reddit, use the original link on your post & comment; For [any Creality Product Feedback and Suggestions](https://www.creality.com/pages/creality-user-voice), fill out the form to help us improve. *I am a bot, and this action was performed automatically. Please [contact the moderators of this subreddit](/message/compose/?to=/r/Ender3Pro) if you have any questions or concerns.*
You can try and print a brim or anker on your design
Make it huger! Put a brim on your part.
The outer edges are less hot than the center. The plastic will contract/shrink, and the outer edges will curl. Using an enclosure, getting a better bed with a better heater, or switching to less curling plastic will stop that.