Jump to content
Ultimaker Community of 3D Printing Experts

New Printer PVA Question

Recommended Posts

First the Ultimaker is far the best printer around... Just got the Ultimaker 3 yesterday... and with out having to do anything but put in the filament and plug in in.... WOW and now it is finishing a 22 hour print... unbelievable. ;)

My question is after it has stop printing... what to do?

Should I remove the PVA filament ... I will not print again for 2-3 day. I understand that the PVA will degrade if left out.

Kind regards


Share this post

Link to post
Share on other sites

Hi, Bobr,

Generally speaking, your PVA should be okay if left in for a couple of days (for example if you left printing on Friday, and came back on Monday). However, as a general rule of thumb, I'd recommend storing the PVA in a bag or plastic container with some silica packs to help keep the moisture out, especially if you live in a humid region.

If you know you're not going to use the BB Core for quite a while, you might also consider doing a cleaning, such as is described here when you take the filament out, though generally the printer is pretty good about pulling most of the filament out when you eject the material: https://ultimaker.com/en/resources/23132-maintaining-the-bb-print-core

Share this post

Link to post
Share on other sites

PLA isn't hugely humidity sensitive. It's a good practice to put it in a container with a couple of silica packs, but it's not going to go bad in the span of a few weeks or even a few months unless it's getting exposed to extreme heat/humidity. I have some filaments that are a few years old that I still use occasionally from colors that were discontinued.

PVA is more humidity sensitive, so I'd recommend sealing the filament up if you think you won't use it for a week or more. Because it dissolves on contact with water, you really want to be careful not to let moisture get into it. If you're in a really humid environment, I'd be more cautious.

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

    • Architect Design Contest | Vehicles.
      We're open for entries! - Design and submit your 3D designs of architectural entourage - vehicles - for a chance to win a large filament pack. Presenting an idea, an architectural design or something as big as an urban project isn't easy. A scaled model can really help to get your idea across.
        • Like
      • 25 replies
    • What The DfAM?
      I'm Steve Cox, an experienced engineer familiar with 3D printing. I wanted to share some DfAM guidelines with this community to help and make stronger parts.
      I'm also an Autodesk Certified Instructor for Fusion 360, so many of the images in ...
        • Thanks
        • Like
      • 23 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!