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

Twigs

Recommended Posts

Hi, there are tiny "twigs" that are branching out from my support structures when printing. Does anyone have any idea on how to reduce the "twigs" while printing? Thank you.

 

Twigs

 

Share this post


Link to post
Share on other sites

Hi

It always happens right after a yarn withdrawal (retraction). Immediately after the retraction, the print head travels to a new location, without actually printing. In this case, these fine threads may arise.

If it is visible only in the support material, it does not really matter.

Anyway, below options to alleviate this effect:

- Retraction length and speed increase slightly (UM2-Tune menu).

- Travel speed in Cura increase something, for example 175mm / s

- Reduce the Print-temperature slightly.

- Reduce the Print-Speed also some).

It is very important that print temperature and print speed always harmonize.

Markus

 

Share this post


Link to post
Share on other sites

It is very important that print temperature and print speed always harmonize.

 

He means if you lower the temperature without lowering the speed you might get underextrusion due to the toothpaste nature of colder PLA.

We call them "strings" or "stringing". Now you know what to google. Here are some hints - first photo:

http://umforum.ultimaker.com/index.php?/topic/1872-some-calibration-photographs/

 

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.
      • 1 reply
    • "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!