Jump to content
Ultimaker Community of 3D Printing Experts

Theory on Warping


Recommended Posts

Posted · Theory on Warping

I have a theory that thinner layers and thinner extrusion leads to more warping.  The basic thought I have in my head is that if you're printing thin layers, near or below the nozzle width, then you're smearing and stretching the filament, leading to higher stress and potential warping.

 

It's easy enough to find a print that's prone to warping, print with different settings and then eyeball the result.  But I'm wondering if anyone has taken a truly scientific approach with this and has good numbers?  Maybe even measured stress with some fancy hardware?

 

What do you think?  Agree or disagree?  Did I miss something obvious or something counter-intuitive?  Know of any existing hard data?

  • Link to post
    Share on other sites

    Posted · Theory on Warping

    Warping-tendency on the bed *while printing* seems to be lower with thinner layers: their bottom is flatter and has a bigger contact-area to the bed than thicker layers, so a better adhesion and less warping. Also, a very thin layer can excert less forces while cooling than a thick layer. A 0.3mm layer suddenly cooling down and shrinking will be able to pull much harder than a 0.06mm layer, I think.

     

    But for warping afterwards, for example the completed part sitting in the sun or in weather, I have no idea. Prints with thicker layers have more entrapped air (=are less transparent) than prints with thin layers. But I don't know if and how that would affect internal stresses and warping afterwards? Interesting thought though.

  • 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
     Share

    • Our picks

      • New here? Get ahead with a free onboarding course
        Hi,
         
        Often getting started is the most difficult part of any process. A good start sets you up for success and saves you time and energy that could be spent elsewhere. That is why we have a onboarding course ready for
        Ultimaker S5 Pro Bundle, Ultimaker S5, Ultimaker S3 Ultimaker 2+ Connect.   
        They're ready for you on the Ultimaker Academy platform. All you need to do to gain access is to register your product to gain free access. 
        Ready? Register your product here in just 60 seconds.
          • Like
        • 8 replies
    ×
    ×
    • Create New...