Jump to content

Shrinkage After Printing


perlguy

Recommended Posts

Posted · Shrinkage After Printing

I've printed an iPhone holder for my car in PLA.

If the car gets hot in the sun, the holder shrinks quite a bit, to the point where the phone no longer fits into the holder.

I re-printed a larger one, that also shrunk, but the phone still fits in it.

Is there any way to do something to the PLA so that it will not shrink in the heat?

Thanks.

 

  • Link to post
    Share on other sites

    Posted · Shrinkage After Printing

    Nope, not that I know of. That's the nature of PLA, it is quite heat sensitive. It has a glass transition temperature of about 60-65C so it doesn't take much for it to start feeling the heat so to speak.

  • Link to post
    Share on other sites

    Posted · Shrinkage After Printing

    PLA + Car + Sun = will never work

    I developed a phone holder for my Nexus4 and printed it in PLA to test the basic functions. Worked quite well until the outside temperature was about 18°C. After 8 hours the PLA was a little bit twisted so that my phone does not fit anymore.

    The last days the temperature was over 30°C. After 8 hours the phone holder was totally bend. It felt like hot cheese and I could deform it to different sculptures with only two fingers.

    So, if you want to print something for your car, use ABS. That's what I will try to do next.

     

  • Link to post
    Share on other sites

    Posted · Shrinkage After Printing

    I'm not sure if it shrinks so much as melts a bit. Anyway, your only choice really is to use ABS or never leave it in a car.

    ABS is a difficult material to work with. You will need to use the "brim" feature as a minimum. You will need to do other things to get it to stick to your bed e.g. (ABS Juice on glass). You might want a heated bed or heated chamber.

  • 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

      • 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
      • Ultimaker Cura 5.6 stable released
        Cura now supports Method series printers!
         
        A year after the merger of Ultimaker and MakerBotQQ, we have unlocked the ability for users of our Method series printers to slice files using UltiMaker Cura. As of this release, users can find profiles for our Method and Method XL printers, as well as material profiles for ABS-R, ABS-CF, and RapidRinse. Meaning it’s now possible to use either Cura or the existing cloud-slicing software CloudPrint when printing with these printers or materials
        • 48 replies
    ×
    ×
    • Create New...