Jump to content
Ultimaker Community of 3D Printing Experts

Wrong line width calculation

Recommended Posts

I'm using Cura 3.1.0 with a bunch of Ultimakers (O, O+ and 2) and I am having a problem with the line width setting for the UMO and UMO+.


It seems the calculated line width is always 0,4, even when I have a different nozzle size filled out in the machine settings.  

When using the UM2 (with olsson block) the line width updates when I change the nozzle setting, but this setting isn't available for UMO machines. I have a bunch of machines set up in Cura with different nozzle sizes, none of them translating the nozzle size to line width, resulting in failed prints because I am not used to have to set this manually. I think it used to work fine in previous versions of Cura


The help dialogue states the setting is affected by "nozzle diameter", while I only have the "Nozzle size" setting available (or just "nozzle" for UM2). I would think this is the same setting, but apparently there is a difference. 


Does anyone else have this problem? Or does anyone know where to set the Nozzle diameter setting?

Share this post

Link to post
Share on other sites

I looked around in the Cura 3.1 settings for my UMO+, and I couldn't find a nozzle size setting anywhere either.  I could have sworn it was there in an earlier version, but I haven't had a reason to use it yet.  I have changed line width while using the standard 0.4mm nozzle, but that's a completely different thing.

Share this post

Link to post
Share on other sites
12 hours ago, ctbeke said:

We're patching some things related to nozzle size and line width for Cura 3.2, but planning a larger rewrite for 3.3(?) in order to really fix it. Expect improvements here in the coming releases.

 Awesome, thanks for the feedback!

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
      • 114 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!