Jump to content

Cura Print Estimate Accuracy


Recommended Posts

Posted · Cura Print Estimate Accuracy

I received the Ultimaker 2 extended a couple months ago and mainly printed smaller objects. Today I began to print the largest model I've made. Its roughly 22cm high and 10 cm wide. In Cura, the predicted print time was 11 hours. It has now been printing for 3 hours and the estimated time is 66 hours! I set my speed to 100 mm/s with the only exception being bottom which I set for 20 mm/s.

Should I rely on the Cura estimate or the printers estimate? How could the two estimates be so off?


  • Link to post
    Share on other sites

    Posted (edited) · Cura Print Estimate Accuracy

    Go with the cura estimate.

    The difference is that cura takes into account what each layer looks like. It does a "dry run" of sorts to get the estimate.

    The estimate on the printer is pretty inaccurate, especially in the beginning. Basically what it does is "this layer took X seconds to complete, I have Y more layers to go, therefore remaining time must be X*Y". And since the first layer is printed slower and might be twice the size of some other layers in the model you can see how it can get things very wrong.

    edit: Also be aware that 100mm/s is pretty fast so don't be too surprised if you see some underextrusion.

    Edited by Guest
    • Like 1
    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

      • Introducing the UltiMaker Factor 4
        We are happy to announce the next evolution in the UltiMaker 3D printer lineup: the UltiMaker Factor 4 industrial-grade 3D printer, designed to take manufacturing to new levels of efficiency and reliability. Factor 4 is an end-to-end 3D printing solution for light industrial applications
          • Thanks
          • Like
        • 3 replies
      • UltiMaker Cura 5.7 stable released
        Cura 5.7 is here and it brings a handy new workflow improvement when using Thingiverse and Cura together, as well as additional capabilities for Method series printers, and a powerful way of sharing print settings using new printer-agnostic project files! Read on to find out about all of these improvements and more. 
          • Like
        • 27 replies
    • Create New...