Jump to content
Ultimaker Community of 3D Printing Experts

Gradual infill in custom setup

Recommended Posts

If I choose "Recommended" in Print Setup, there is a checkbox for "Enable gradual". Setting this greys out the Infill percentage slider.


If I then switch to "Custom", there is no option to enable or disable gradual, although I can then alter the percentage. There is nothing in "Setting Visibility" to make this available.


If I alter the percentage and switch back to Recommended, the slider shows the new percentage, but greyed out. The percentage seems to alter the layer at which the more dense fill-in starts.


I'm not sure what needs to happen here but it seems to me the easiest solution would be to:


a) Make the gradual infill checkbox available in Custom

b) If the Gradual infill box is checked when moving from Custom to Recommended, set the percentage back to 90% and the fill to Lines (i.e. the recommended settings).





Share this post

Link to post
Share on other sites

As a relative newbie, I read the tutorial on Gradual infill, but don't quite understand the concept.

It seems that the infill is low or less dense at the bottom of a model but more dense near the top.

If this is a correct understanding, what is the benefit?

If not, then please help me to understand the tGraudal Infill.



Share this post

Link to post
Share on other sites

You are correct, it gets more dense to the top and helps if you don't need much infill for strongness but need a good amount of infill for the top layer to get a nice surface or the get the top surface strong enough for your needs.


Gradual infill is not suitable for every object, maybe you will need it very rarely but it is good to know that there is something 🙂 

  • Like 1

Share this post

Link to post
Share on other sites

Yes it only gets more dense near "top" surfaces which can be in many locations of your model.  I wish it got thicker on walls and floors for strength as well.


Still it can save time in printing and makes the top layers quite nice.


There are 3 related settings:

infill density

gradual infill steps

gradual infill step height


Try 50% for the density, 1mm for the step height and 10 for the number of steps.  Moving down from the top, each step it uses half as much infill.


For a cube the setting is pretty much useless.  You can instead just add one or 2 more solid infill layers at the top of your part.


For something like a pyramid it's quite useful.  It makes quick partial infill up the sides that get thicker as you get closer to a top surface.  Similar to what bones look like on the inside.



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
      • 79 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!