Jump to content

Why not leave PLA in your car in the sun


geert_2

Recommended Posts

Posted (edited) · Why not leave PLA in your car in the sun

This is why you should not leave a PLA-print in your car in the sun.

 

This was a PLA-mould for casting silicones. I had way overdone chemical smoothing, so in combination with the low-infill, the solvent seeped deeply into the plastic, and slightly warped it. So the mould wouldn't fit properly and wouldn't close anymore. I thought I would straighten-out the warping by clamping the mould, and then putting it in a computer-controlled incubator (=precise low-temp oven) at exactly 60.0°C for a few hours. Just above glass transition temp. Not the best choice, obviously.  🙂

 

In a car in the sun, it can easily get hotter than 60°C, even up to 80°C. So, never leave PLA prints in the car, or elsewhere in the sun. Don't waste time trying to anneal PLA, because that by itself also deforms and warps the part. For car-parts, use PET or some other higher-temp material instead.

 

deformed1.thumb.jpg.e1e5b207ad82b03d9b7e7bf1843697a2.jpg

 

Edited by geert_2
  • 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 Universal Cura Projects in the UltiMaker Cura 5.7 beta
        Strap in for the first Cura release of 2024! This 5.7 beta release brings new material profiles as well as cloud printing for Method series printers, and introduces a powerful new way of sharing print settings using printer-agnostic project files! Also, if you want to download the cute dinosaur card holder featured below, it was specially designed for this release and can be found on Thingiverse! 
          • Like
        • 10 replies
      • S-Line Firmware 8.3.0 was released Nov. 20th on the "Latest" firmware branch.
        (Sorry, was out of office when this released)

        This update is for...
        All UltiMaker S series  
        New features
         
        Temperature status. During print preparation, the temperatures of the print cores and build plate will be shown on the display. This gives a better indication of the progress and remaining wait time. Save log files in paused state. It is now possible to save the printer's log files to USB if the currently active print job is paused. Previously, the Dump logs to USB option was only enabled if the printer was in idle state. Confirm print removal via Digital Factory. If the printer is connected to the Digital Factory, it is now possible to confirm the removal of a previous print job via the Digital Factory interface. This is useful in situations where the build plate is clear, but the operator forgot to select Confirm removal on the printer’s display. Visit this page for more information about this feature.
          • Like
        • 0 replies
    ×
    ×
    • Create New...