Jump to content

What causes these holes in my print?


nicklas

Recommended Posts

Posted · What causes these holes in my print?

Hi, 

I printed this model in PLA with PVA support, and I noticed these holes when the PVA was removed when submerged in water.

 

https://imgur.com/a/NlDNpqg

 

Do you have any idea what causes it? 

 

The way the cure is printed looks like the way the support was printed, which is distinct from the rest of the layers, so maybe it has something to do with support pattern?

 

Thanks in advance!

IMG_7136.jpg

  • Link to post
    Share on other sites

    Posted · What causes these holes in my print?

    Could it be strings from the support material?

    On the place where there is a string, this room obviously can not be occupied by PLA anymore, thus leaving a gap in the PLA after dissolving the supports.

    I am not saying this is the cause, but it could be?

     

  • Link to post
    Share on other sites

    Posted · What causes these holes in my print?

    Although I don't have a dual nozzle printer, I have read and seen on photos that PVA support material is very prone to stringing. So I doubt if you can totally avoid it.

     

    But you can sure try to minimise it. At least, be sure to keep the support filament very dry, and dry prior to printing if necessary, and preferably keep it in a closed box while printing. Make a box yourself or buy one of the available models (I don't remember the name, you will need to search the forum for this).

     

  • Link to post
    Share on other sites

    Posted · What causes these holes in my print?

    My guess was also that PVA strings caused those holes.  I'd look at the part before you submerged it (take a photo) and also you can look at cura layer view and see if that's where the pva nozzle first gets close to the part after switching to the pva core.

  • 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
        • 26 replies
    ×
    ×
    • Create New...