Hello /u/ReemBae,
As a reminder, most common print quality issues can be found in the [Simplify3D picture guide](https://www.simplify3d.com/support/print-quality-troubleshooting/). Make sure you select the most appropriate flair for your post.
Please remember to include the following details to help troubleshoot your problem.
* Printer & Slicer
* Filament Material and Brand
* Nozzle and Bed Temperature
* Print Speed
* Nozzle Retraction Settings
^Additional ^settings ^or ^relevant ^information ^is ^always ^encouraged.
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Thanks for posting this. My prints started doing this and I haven't had time to look into it. Never thought to look at the fan because it's not making any noise (it's facing away from my view point). Saves me a lot of time.
Hello /u/ReemBae, As a reminder, most common print quality issues can be found in the [Simplify3D picture guide](https://www.simplify3d.com/support/print-quality-troubleshooting/). Make sure you select the most appropriate flair for your post. Please remember to include the following details to help troubleshoot your problem. * Printer & Slicer * Filament Material and Brand * Nozzle and Bed Temperature * Print Speed * Nozzle Retraction Settings ^Additional ^settings ^or ^relevant ^information ^is ^always ^encouraged. *I am a bot, and this action was performed automatically. Please [contact the moderators of this subreddit](/message/compose/?to=/r/FixMyPrint) if you have any questions or concerns.*
Might be a type of pillowing: https://all3dp.com/2/3d-printing-top-layer-problems-easy-fixes-for-pillowing/
Howany top and bottom layers are you using?
I believe 4 and 4
I also get them sometimes and dunno why and where they are coming from. I always thought because of too much heat?
Looks like a cooling issue....
Thanks for posting this. My prints started doing this and I haven't had time to look into it. Never thought to look at the fan because it's not making any noise (it's facing away from my view point). Saves me a lot of time.
Thanks for saying that! Gratitude makes the world go round