UltiMaker uses functional, analytical and tracking cookies. Tracking cookies enhance your experience on our website and may also collect your personal data outside of Ultimaker websites. If you agree with the use of tracking cookies, click “I agree, continue browsing”. You can withdraw your consent at any time. If you do not consent with the use of tracking cookies, click “Refuse”. You can find more information about cookies on our Privacy and Cookie Policy page.
SOLVEDSmall creases forming on first layer, unknown cause or resolution
Posted
(edited)
· Small creases forming on first layer, unknown cause or resolution
I have done over 21 different test prints consecutively changing only one factor at a time to see what changes were made to the print when putting down the first layer. Moving the print to a new location on the print bed didn't remove the problem, it just continued to crease in the same direction (in accordance with the bed) as the previous times. When flipping the glass build-plate over the creases were identical. The bed was always cleaned with soap and water and dried before each test. I then started to change settings such as initial layer flow, initial layer line width, initial layer height, nozzle temperature, and initial layer print speed, one at a time, which none of those settings made any change to the way the creases were occurring on every print, pointing in the same directions each time. I even went all the way back to where the file came from at Fusion 360 and imported the file again, although this time I selected under the "refinement" High quality instead of medium. I then used all the unmodified settings for the filament I was using and printed a test print first layer at .3mm initial layer height and it almost solved the problem though it seemed like the filament was too far from the bed (not good adhesion). If you are having this problem and are using Fusion 360 I recommend leaving any comments for assistance in solving this problem. I am still printing with the creases. Also FYI this isn't just my UM3S that it does this, it also happens with my Ender 3 Pro on large flat first layers that require alot of base skin. The picture included is the effect on my Ender 3 Pro
Posted
· Small creases forming on first layer, unknown cause or resolution
**PROBLEM SOLVED**
OVEREXTRUSION
I just tried one more test print with the same object file from Autodesk Fusion 360 and used medium refinement to convert to Cura. Within Cura I used all the same settings for Generic CPE accept for the Initial Layer Flow. After analyzing the bottom of the prints and creases on them I noticed that it looked a lot like too much filament was flowing with nowhere to go but on top of itself (causing creases) so I lowered the Initial Layer Flow from 100% down to 75% and yielded these results shown in this picture with clear PETG. This is my first test with successful results although I think by the smooth surface of the bottom of the print and filled lines with no gaps that I hit it right on the nose.
Posted
· Small creases forming on first layer, unknown cause or resolution
So typically the bottom layer is leveled on purpose such that it will squish extra hard. This is so you squish the bottom layer more which causes parts to stick better. So lowering flow to 75% may result in your parts not sticking as well.
Link to post
Share on other sites
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
🚀 Help Shape the Future of Cura and Digital Factory – Join Our Power User Research Program!
We’re looking for active users of Cura and Digital Factory — across professional and educational use cases — to help us improve the next generation of our tools.
Our Power User Research Program kicks off with a quick 15-minute interview to learn about your setup and workflows. If selected, you’ll be invited into a small group of users who get early access to features and help us shape the future of 3D printing software.
🧪 What to Expect:
A short 15-minute kickoff interview to help us get to know you If selected, bi-monthly research sessions (15–30 minutes) where we’ll test features, review workflows, or gather feedback Occasional invites to try out early prototypes or vote on upcoming improvements
🎁 What You’ll Get:
Selected participants receive a free 1-year Studio or Classroom license Early access to new features and tools A direct voice in what we build next
👉 Interested? Please fill out this quick form
Your feedback helps us make Cura Cloud more powerful, more intuitive, and more aligned with how you actually print and manage your workflow.
Thanks for being part of the community,
The full stable release of Cura 5.10 has arrived, and it brings support for the new Ultimaker S8, as well as new materials and profiles for previously supported UltiMaker printers. Additionally, you can now control your models in Cura using a 3D SpaceMouse and more!
Recommended Posts
GoguyT3d 8
I have done over 21 different test prints consecutively changing only one factor at a time to see what changes were made to the print when putting down the first layer. Moving the print to a new location on the print bed didn't remove the problem, it just continued to crease in the same direction (in accordance with the bed) as the previous times. When flipping the glass build-plate over the creases were identical. The bed was always cleaned with soap and water and dried before each test. I then started to change settings such as initial layer flow, initial layer line width, initial layer height, nozzle temperature, and initial layer print speed, one at a time, which none of those settings made any change to the way the creases were occurring on every print, pointing in the same directions each time. I even went all the way back to where the file came from at Fusion 360 and imported the file again, although this time I selected under the "refinement" High quality instead of medium. I then used all the unmodified settings for the filament I was using and printed a test print first layer at .3mm initial layer height and it almost solved the problem though it seemed like the filament was too far from the bed (not good adhesion). If you are having this problem and are using Fusion 360 I recommend leaving any comments for assistance in solving this problem. I am still printing with the creases. Also FYI this isn't just my UM3S that it does this, it also happens with my Ender 3 Pro on large flat first layers that require alot of base skin. The picture included is the effect on my Ender 3 Pro

Edited by GoguyT3dChange in results
Link to post
Share on other sites
GoguyT3d 8
**PROBLEM SOLVED**
OVEREXTRUSION
I just tried one more test print with the same object file from Autodesk Fusion 360 and used medium refinement to convert to Cura. Within Cura I used all the same settings for Generic CPE accept for the Initial Layer Flow. After analyzing the bottom of the prints and creases on them I noticed that it looked a lot like too much filament was flowing with nowhere to go but on top of itself (causing creases) so I lowered the Initial Layer Flow from 100% down to 75% and yielded these results shown in this picture with clear PETG. This is my first test with successful results although I think by the smooth surface of the bottom of the print and filled lines with no gaps that I hit it right on the nose.
Link to post
Share on other sites
gr5 2,330
So typically the bottom layer is leveled on purpose such that it will squish extra hard. This is so you squish the bottom layer more which causes parts to stick better. So lowering flow to 75% may result in your parts not sticking as well.
Link to post
Share on other sites