Jump to content
Ultimaker Community of 3D Printing Experts

Infill is really thin or under extruding when printing at .1 layer height on UM2

Recommended Posts

(Info on print, Im using IC3D ABS and heating the nozzle to 250. Print is set to .1 layer height, fan setting to 15%... sliced in S3D)

I thought maybe it was due to a clog in the nozzle so after several atomic method pulls it continued to be an issue.

So I then thought maybe I would swap my stock nozzle over to the newer Olsson Block. I did so and screwed on a .4 nozzle... re-leveled the bed and begun the print. Same issue.

So I then thought maybe my temp sensor is bad and it isn't heating the nozzle to the correct temp. I replaced it with a brand new temp sensor... no change. Infill still seems to print very thin as if under extruding... but the walls of the print and upper and lower surfaces are damn perfect, with no signs of under-extrusion. Does anyone know what might be the issue?

This seems to only be an issue as far as I can tell at .1 layer height and below... as at .15 layer height it seems to print the infill just fine.

here is an example of the infill at .1 layer height within a calibration cube. As you can see the infill pattern is broken and doesn't connect in several areas. Any ideas why this is happening?



Edited by Guest

Share this post

Link to post
Share on other sites

Ive been searching this issue via google and Ive found this is just how the UM prints infill as many others also suffer from the same issue... the infill speeds seem to be set so fast that they don't have time to extrude properly. I already have my default speeds set to 40mm in S3D which should in turn slow down the infill as well but the infill pattern is still bad. Luckily is hasn't effected my outer surface and still produces beautiful prints but Im guessing the parts aren't as strong as they would be with proper support.

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!