Jump to content

To create mold for concrete using PLA

Fazil Marakkat

Recommended Posts

Posted · To create mold for concrete using PLA
5 hours ago, Fazil Marakkat said:

but I have concern with the cast removal, do you know any lubricants to be used?

you should find a release agent to separate the concrete to the mold...

  • Link to post
    Share on other sites

    Posted · To create mold for concrete using PLA

    You need to make sure you have no undercuts, and that all side walls have draft (=wider opening at the top). Otherwise the models get stuck.


    If in doubt, make the walls out of multiple parts, and provide strong flanges with holes to screw them together.


    Provide big openings for pouring in the liquid, and openings for venting air. Make sure no air can get trapped.


    Weight could also be a problem in big models: make the walls thick enough, and provide extra supports where required (like the beams on the sides of castles and cathedrals).


    And heat development: I don't know how hot concrete gets, but gypsum gets warm and could melt PLA moulds.


    For release agents, you will have to google. Not only do you need to find one that works well in combination with concrete, but it also should not inhibit the curing. Try on small test pieces first. Silicon oil might work.


  • 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

      • UltiMaker Cura 5.8 beta released
        Another Cura release has arrived and in this 5.8 beta release, the focus is on improving Z seams, as well as completing support for the full Method series of printers by introducing a profile for the UltiMaker Method.
          • Like
        • 1 reply
      • 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
    • Create New...