Jump to content
Ultimaker Community of 3D Printing Experts

Recommended Posts

We've had our printer a few months now and have used it quite a bit. Recently it's started to produce quite a bit of fine strands of material whilst printing that resemble cobweb. And in addition its also leaving blobs of material (which I think is when it travels from one side of the print to the other to start either a new layer or more filling in), these end up on the outside face and are really rough. We've changed the nozzle, this has helped a little with the "cobwebbing" but not with the "blobbing". Any thoughts?

Thanks

Ben

Share this post


Link to post
Share on other sites

Sounds like a stinging issue to me... Here are some questions to clarify more;

Do you have retraction enabled?

What are your retraction settings?

What is your printing temperature?

Do you use print cooling (from a fan)?

What is your travel speed?

Share this post


Link to post
Share on other sites

You might want to reduce your print temperature, and increase the retraction length and speed.

This will vary from filament to filament (even from the same manufacturer), so be prepared to experiment.

Share this post


Link to post
Share on other sites

My personal theory about the Barbapapa effect of the hairs it's that when 'too hot' + 'fans really high' makes the effect used on a cotton candy machine. Specially since pla has some sugar in it (from corn).

Edited by Guest

Share this post


Link to post
Share on other sites

 

@neotko, that sounds quite plausible. I have been printing PLA with fans off completely and only had stringing issues when at high temp, no cobwebbing. Worth testing out this theory when I have a moment.

  • Like 1

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

  • 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!