Jump to content
Ultimaker Community of 3D Printing Experts

PVA doesn’t extrude consistently from UMS3


matteolopreti
 Share

Recommended Posts

Posted · PVA doesn’t extrude consistently from UMS3

I’m having troubles with printing of PVA support materials with my Ultimaker S3.

I’m printing from a Core B0.4 (new), I’ve recently changed the Bowden cable, and the filament is also new.

 

When i load the material, it seems to be extruding correctly. I’ve then tried the calibration procedure, but from a certain point on, the PVA did’t extrude well any longer.

When I unloaded and loaded again the filament, it managed to extrude again. The signs on the filament made by the feeder look regular.

 

Can anyone figure out what is happening?

  • Link to post
    Share on other sites

    Posted · PVA doesn’t extrude consistently from UMS3

    PVA gets soft very quickly in higher humidity. So store it always in a bag or box and when you do longer prints consider to buy a DryBox or something like that.

    • Like 1
    Link to post
    Share on other sites

    • 1 month later...
    Posted · PVA doesn’t extrude consistently from UMS3

    PVA is very sensitive, like even 24hrs exposure to humidity can give big problems.

    In the early years i wasn't aware of this, and it made me having lots of troubles which i never could identify.

    Since i changed my behavior with these kind of filaments, i no longer have any problems.

    You can use a drybox, but, and this is my current way of working, you can also only cut the needed length of the roll PVA, and put the rest back in the original sealed bag with its dessicant.

     

     

     

  • 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.
        • 11 replies
    ×
    ×
    • Create New...