Jump to content
Ultimaker Community of 3D Printing Experts

Heatwaves add to the turbulent English year


Recommended Posts

Posted (edited) · Heatwaves add to the turbulent English year

This is the first time it has happened to us. Printing in England is normally trouble free when it comes to environmental conditions; in Autumn, Winter and Spring if anything one will be heating the printer room. We run at 20/21 c. This week with England having experienced the hottest day in June for 40 years  or more, the room hit 29/30 c for at least three days consecutively, right in the middle of a production run of 100 units. What a mess, lots of poor finishes, gaps between walls, playing around with Flow% to try and get it better and unbelievable shrinkage.

The part we were printing fits onto a belt and so has a loop on both sides (i.e. sausage shaped “circles” ) with a specification of 4.0mm width for the vertical gap. Having adjusted the model dims. for shrinkage we always (95%+) get within 50 microns for this part which is fine. This week most of our readings were 3.60-3.70 with some down to 3.50 or so. Unfortunately we had printed a large quantity before starting QA and discovering the problem :angry:. So there has been lots of Dremeling and filing these past two days! Plus reprints this weekend to replace poor quality.

Weather temps are back to normal, as is the printing operation. You learn by experience and we shall certainly not be leaving QA so long the next time temps get insane!!

Edited by Guest
  • Link to post
    Share on other sites
    Posted (edited) · Heatwaves add to the turbulent English year

    I agree...environmental conditions can radically change things and usually within a matter of minutes....like 20 or so minutes if severe enough. All your material has to be is hydroscopic or temperature sensitive.

    This happened to me within that time period.

    Edited by Guest
  • Link to post
    Share on other sites
    Posted · Heatwaves add to the turbulent English year

    It became apparent to me at shows where we went, in humid rooms in Italy during summer, for example, it showed up in the print immediately. We could throw our current print profiles right out of the window :p

    At other shows where we were partially outside and there was a strong draft was also far from ideal. But the good thing was we can just tweak the profiles until the print quality was somewhat within recognition again. Were you printing with regular PLA?

  • Link to post
    Share on other sites
    Posted · Heatwaves add to the turbulent English year

    Yup we wereusing Colorfabb Dutch orange, which we use quite a lot but I could just not get it right. The worst point was the walls separating. They printed just fine but then small gaps would appear. I have never seen that before and we have printed hundreds of this part. It was not everywhere along every wall but enough for us to reject them.

    We got an extra day on delivery and by tonight I think we will have reprinted 50-60 of the original 100 :angry: :angry: :angry:

  • Link to post
    Share on other sites
    Posted · Heatwaves add to the turbulent English year

    Yup we wereusing Colorfabb Dutch orange, which we use quite a lot but I could just not get it right. The worst point was the walls separating. They printed just fine but then small gaps would appear. I have never seen that before and we have printed hundreds of this part. It was not everywhere along every wall but enough for us to reject them.

    We got an extra day on delivery and by tonight I think we will have reprinted 50-60 of the original 100 :angry::angry::angry:

    ooff! I feel your pain.

  • Link to post
    Share on other sites
    Posted · Heatwaves add to the turbulent English year

    For PLA, try putting a desktop fan (ca. 30cm diameter) at a distance of 3m in front of the printer, and let it blow at lowest speed towards the printer. It should not create a storm wind, but just a nice breeze. This extra air circulation prevents/reduces local heat build-up: it helps a lot for me.

  • Link to post
    Share on other sites
    Posted · Heatwaves add to the turbulent English year

    Thanks @geert_2 certainly no harm in giving that a try. Although of course now it is cooler and raining, British weather for you!! I was wondering yesterday whether it was the heat or maybe it was the humidity? Not something we normally suffer from where I live but it was sure humid last week.

  • 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

      • Startups, apply for the Forward AM Innovation Award!
        Are you a startup using 3D printing? Perhaps you should continue reading... 
         
        Together with BASF we are launching the Forward AM Innovation Award - the very first global contest for startups developing new applications with 3D printing!
         
        Why apply?
        The winning startup will receive €100,000 in goods and services*, along with coaching and marketing exposure from top-notch leaders in the industry.
         

         
        Who can apply?
        Your startup creates products using Additive Manufacturing, is less than 5 years old, and has less than 50 employees. We are looking for 3D printing applications with a strong focus on innovation, sustainability and scalability.
         
        Dental aligners, shoes, tools, automotive parts, music instruments, industrial tooling and molding, medical implants, sports equipment, toys, architecture, fashion, construction... all are welcome to join!
         
        Do you have an innovative, sustainable and scalable idea that leverages the unique possibilities of 3D printing? Then it is time to apply!
        More information can be found here.
         
        Applications close on March 28th, 2021
        * What does "in goods and services" mean?
        The winner will be able to pick any item from the overall product and service portfolio of the sponsors, e.g. printers, materials, consulting, software... Choose whatever you need to accelerate your startup.
         
          • Like
        • 0 replies
      • New here? Register your Ultimaker for free 3D printer onboarding course
        Hi,
         
        Often getting started is the most difficult part of any process. A good start sets you up for success and saves you time and energy that could be spent elsewhere. That is why we have a onboarding course ready for
        Ultimaker S5 Pro Bundle, Ultimaker S5, Ultimaker S3 Ultimaker 2+ Connect.   
        They're ready for you on the Ultimaker Academy platform. All you need to do to gain access is to register your product to gain free access. 
        Ready? Register your product here in just 60 seconds.
          • Like
        • 0 replies
    ×
    ×
    • Create New...