Jump to content
Ultimaker Community of 3D Printing Experts

Strength of Ultimaker Nylon


Recommended Posts

Posted · Strength of Ultimaker Nylon

Has anyone done any comparisons of the strength of Ultimaker nylon relative to some of the others? There are lots of comparisons of different nylons, but I haven't found one where somebody compared Ultimaker's nylon to the others. The composition Ultimaker nylon appears to be similar to ColorFabb PA Neat and Polymer PolyaMide coPA, both of which have reputations for being good materials. Alloy 910 and the Matterhackers composites are what I'm interested in comparing against. 

  • Link to post
    Share on other sites

    • 2 weeks later...
    Posted · Strength of Ultimaker Nylon

    Hi @dcschooley

     

    We are actually in the midst of updating the Ultimaker technical datasheets, so I can help you out a bit with your question.

     

    Ultimaker Nylon is a PA6/66 copolymer, like Polymaker's CoPA (also PA6/66). Colorfabb PA neat is mostly PA6 as far as I know.

     

    What does that mean for you in terms of mechanical properties?

    Stiffness:

    Typically PA6/66 is a flexible yet very strong and tough Nylon, with a tensile modulus of about 2300 MPa and flexural modulus of 1900 MPa. The same applies for Ultimaker Nylon as well as Polymaker's CoPA.

     

    Strength:

    Tensile strength is very high for such materials, typically 60 MPa with yields of about 6%. Also, this nylon will typically elongate up to 120% before it breaks (so double it's length).

    Flexural strength is also rather high at 80 MPa. 

     

    PA6 (e.g. Colorfabb) is stiffer compared to PA6/66, typically a modulus of about 3000 MPa. Strengths are slightly higher as PA6/66, but it basically doesn't yield but it breaks instead of extending - so it depends a bit on your application.

     

    As a side-note, numbers that I just give for Ultimaker Nylon are actually measured on 3D printed parts. Filament suppliers typically just use injection molding values - which are ideal cases. Expect only 80~90% of the reported properties of such TDS (at least in our experience).

     

    Hope this helps!

     

    • Like 2
    Link to post
    Share on other sites

    Posted · Strength of Ultimaker Nylon

    Thank you. Your answer is what I was looking for. I had been indecisive about several materials, but I am going use UM's nylon. One thing I have noticed is that I'm more likely to run into situations where the hobbed gear chews out a bit of the filament and the filament quits moving. It's usually preceded by the material failing to unload from the hot end at the end of the print. This results in the next print not starting properly because the nylon doesn't extrude. The prints where the material fails to unload are fine. I think what is happening is that the nylon is getting slightly stuck in the hot end because it is cooling too much at the end of the print and this causes the hobbed gear to chew up the filament. I clear it up by following the steps on the display, but not really. I let the hot end heat up and then the nylon retracts just fine. I lie to the printer by not actually removing any of the tubing. This is on an S5 with a Material Station. Any ideas?

  • 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

      • Ultimaker showcase | April 2022 | 4pm CEST | 10am EDT
        I'm excited because I've personally produced this showcase event, so if you are curious what else I'm up to nowadays, come check it out and say hi in the chat! It would mean a lot! 
          • Thanks
          • Like
        • 4 replies
      • 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
        • 11 replies
    ×
    ×
    • Create New...