Jump to content
UltiMaker Community of 3D Printing Experts

Bed heating takes too long. Defect?


hoegge

Recommended Posts

Posted · Bed heating takes too long. Defect?

According to the data sheet for the UM3Ex the heating time for the bed is < 4 minutes. 

Heating my bed to 100 deg Celsius takes 15 minutes. So I assume my printer / bed is defect? 

15 minutes is simply too long

  • Link to post
    Share on other sites

    Posted · Bed heating takes too long. Defect?

    4 minutes to 60C is about right.  15 mintues to 100C is about right also.  If you are printing ABS you really need to enclose the printer as well and 100C isn't really quite hot enough - 105C is much better (less likely to warp off the bed).  You can just use a box and place it on top of the printer without any cutting/taping of the box - if you can find the right size (the boxes you find near photo copiers that hold many reams of paper are perfect and need no modifications).  And cover the front of the printer with saran wrap or similar.

     

    This should help it heat slightly faster and also the air inside should reach about 35C which will improve your ABS prints.

     

    Also with ABS you want the fan no higher than 3%.  8% is almost the same as 100% on the um3 fan (I don't know why) so you really need to go down to about 3% or even 1% on the um3 fan with ABS.

     

    If you don't do this your parts may look fine until you break one and realize how weak it is on layer lines (bad layer bonding).

    • Like 1
    Link to post
    Share on other sites

    • gr5 changed the title to Bed heating takes too long. Defect?
    Posted · Bed heating takes too long. Defect?

    Well - when the data sheet says < 4 minutes to heat the bed and the maximum bed temperature is 120, it should not take 15 minutes - unless the datasheet lies. What does it take to 105 then - 30 minutes? It is especially annoying since it is impossible to keep the bed hot like on other printers, since the UM3 turns off the heat plate whenever you change filament or do other operations and it does not show the temperature all the time and you can't see it in the web interface either.

     

    When the advertisement states it can print ABS; it should not require modifications and additional hardware to print ABS - by enclosing it or buying an enclosure. Then it should work out of the box.

     

    For a 5000 USD printer, you'd expect you don't have to do all kinds of fiddling to make it do what it says it can do! This is so incredibly disappointing. 

  • 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 5.3 stable released
        In this stable release, Cura 5.3 achieves yet another huge leap forward in 3D printing thanks to material interlocking! As well as introducing an expanded recommended print settings menu and lots of print quality improvements. Not to mention, a whole bunch of new printer profiles for non-UltiMaker printers!
          • Thanks
          • Like
        • 24 replies
      • Here it is. The new UltiMaker S7
        The UltiMaker S7 is built on the success of the UltiMaker S5 and its design decisions were heavily based on feedback from customers.
         
         
        So what’s new?
        The obvious change is the S7’s height. It now includes an integrated Air Manager. This filters the exhaust air of every print and also improves build temperature stability. To further enclose the build chamber the S7 only has one magnetically latched door.
         
        The build stack has also been completely redesigned. A PEI-coated flexible steel build plate makes a big difference to productivity. Not only do you not need tools to pop a printed part off. But we also don’t recommend using or adhesion structures for UltiMaker materials (except PC, because...it’s PC). Along with that, 4 pins and 25 magnets make it easy to replace the flex plate perfectly – even with one hand.
         
        The re-engineered print head has an inductive sensor which reduces noise when probing the build plate. This effectively makes it much harder to not achieve a perfect first layer, improving overall print success. We also reversed the front fan direction (fewer plastic hairs, less maintenance), made the print core door magnets stronger, and add a sensor that helps avoid flooding.
         

         
        The UltiMaker S7 also includes quality of life improvements:
        Reliable bed tilt compensation (no more thumbscrews) 2.4 and 5 GHz Wi-Fi A 1080p camera (mounted higher for a better view) Compatibility with 280+ Marketplace materials Compatibility with S5 project files (no reslicing needed) And a whole lot more  
        Curious to see the S7 in action?
        We’re hosting a free tech demo on February 7.
        It will be live and you can ask any questions to our CTO, Miguel Calvo.
        Register here for the Webinar
          • Like
        • 18 replies
      • UltiMaker Cura Alpha 🎄 Tree Support Spotlight 🎄
        Are you a fan of tree support, but dislike the removal process and the amount of filament it uses? Then we would like to invite you to try this special release of UltiMaker Cura. Brought to you by our special community contributor @thomasrahm
         
        We generated a special version of Cura 5.2 called 5.3.0 Alpha + Xmas. The only changes we introduced compared to UltiMaker Cura 5.2.1 are those which are needed for the new supports. So keep in mind, this is not a sneak peek for Cura 5.3 (there are some really cool new features coming up) but a spotlight release highlighting this new version of tree supports.  
          • Like
        • 22 replies
    ×
    ×
    • Create New...