Jump to content
Ultimaker Community of 3D Printing Experts

Gaps in the infill

Recommended Posts

My 5-yr old UMO is still awesome, and the prints are strong and virtually flawless, but I've noticed something with the infill.


This print uses 20% infill but you can see gaps at the cross-hatch junctions. The seem to form on the far side of the line of motion, like the perpendicular wall wiped all the filament away and it takes a millisecond to re-emerge.

I'm no Guru when it comes to tweaking the settings, so there may be something to be done about that. But I think if Cura could alternate the infill direction every layer, these gaps would disappear, or at least be minimized, making the part even stronger.

Again, I remain totally impressed with Ultimaker, Cura and everything.


Share this post

Link to post
Share on other sites

Check the settings in Cura, if you're using 15.x in the advance tab check to see that the infill speed is NOT set significantly higher than your standard print speed. The faster speed at the normal temperature can cause underextrusion.

Cura had the default infill speed at 85 for some reason for the longest time so printing at 210C on large parts will cause problems.

Also if you want alternating layers for infill, set your infill to 25% or higher and you will get alternating parallel lines that are 2x as tight instead of squares.

Alternatively, downloading the new CURA 2.1.x, you can choose the method of infill.

Also, great to see an UMO. :D your acrylic board is superbly clean for being 5yrs old.

Edited by Guest
  • Like 1

Share this post

Link to post
Share on other sites

Thanks! I'll try that next print.

Ultimaker + Cura. I don't think it gets any easier than this. I've tried using a Leapfrog and its slicing software, and it takes FOREVER, if it finishes at all! The printer, however, seems reliable enough. One day I'll try to figure out how to get Cura to talk to it.

Edited by Guest

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

    • Ultimaker Cura | a new interface
      We're not only trying to always make Ultimaker Cura better with the usual new features and improvements we build, but we're also trying to make it more pleasant to operate. The interface was the focus for the upcoming release, from which we would already like to present you the first glance. 
        • Like
      • 86 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!