Jump to content
Ultimaker Community of 3D Printing Experts
Sign in to follow this  

UM2 printing loops of filament on one side of symmetrical model

Recommended Posts

Hi all.


I made a model of a small boat. The overhang of the fender is decent on one side, but on the other side the UM2 prints loops. Has this to do with the order in which the print head moves around?


I already cut off some loops with a small knife but you can still see the overhang is not very pretty. I don't need a high quality for this model, so the one side is perfectly acceptable, but the other side is not good enough. how can I solve this?


print settings:


layer height: .2

shell thickness: .8

enabled retraction

bottom/top thickness: 0.8


fill density: 20%


print speed 50 mm/s


material is ultimaker blue PLA. no supports.




IMG 20140812 114819

IMG 20140812 114836


Share this post

Link to post
Share on other sites

Could be a cooling difference (on one side the fan is closer to the nozzle)

Also, is the fender part of the main model, as, are the fender and the boat 1 part? As it looks like there is a small gap between those, which isn't really working as an advantage for you.



it might be the model, although I get this loop-printing quite often in overhangs. how do I resolve the cooling issue? slower print speed?


Share this post

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!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
Sign in to follow this  

  • Our picks

    • How to 3D print with reinforced engineering materials
      Ultimaker is hosting a webinar where we explain how you can achieve and maintain a high print success rate using these new reinforced engineering materials. Learn from Ultimaker's Product Manager of Materials and top chemical engineer Bart van As how you can take your 3D printing to that next level.
      • 0 replies
    • "Back To The Future" using Generative Design & Investment Casting
      Designing for light-weight parts is becoming more important, and I’m a firm believer in the need to produce lighter weight, less over-engineered parts for the future. This is for sustainability reasons because we need to be using less raw materials and, in things like transportation, it impacts the energy usage of the product during it’s service life.
        • Like
      • 12 replies

Important Information

Welcome to the Ultimaker Community of 3D printing experts. Visit the following links to read more about our Terms of Use or our Privacy Policy. Thank you!