Jump to content
UltiMaker Community of 3D Printing Experts

UM3 print problem


Gio26

Recommended Posts

Posted (edited) · UM3 print problem

Yesterday evening I turned off the printer after printing without a problem a "cube!" ?

Today I launched a print, always for the check my axes, but more bigger (100x100x50).

I use active leveling set to automatic.

The printer first checked the leveling and then the printing started.

Extruded the usual small amount of filament in the left front and then started to make the brim.

It makes a strange sound, I hope you can hear in the attached file, and does not extrude. it made only a small portion in the back.

I stopped the print, extruded the filament with the manual function, the printcore extruded well and relaunched the print.

Same result.

Is not my day! ?

Thanks.

 

IMG_2592.thumb.JPG.98c9f25be2a3322a0ad7317f69dcd6f4.JPG

 

Print sound.zip

Edited by Gio26
  • Link to post
    Share on other sites

    Posted · UM3 print problem

    I also have sometimes strange behaviors after aborting a print. I don't know why, but when I have to abort, I say that I want not to retry, turn the printer off and on again, and resend the file from Cura to the printer.

     

    If this also does not help, then your nozzle could be clogged. So you have to do a hot/cold pull (see the manual for instructions) or even easier try another print core.

  • Link to post
    Share on other sites

    Posted · UM3 print problem

    Autolevel can be nice but I recommend manual level.  Use the calibration card.  Then once print starts I often change it a little bit by turning the 3 screws an equal amount to move the glass up or down depending.

     

    You want it squished well or the part won't stick well.  If you squish too well it's hard to get the part off (if it squishes until transparent then that's too much).

     

    ===

     

    Examples of how bottom layer should look.  These pictures are from the internet mostly and I am just guessing that the bottom layer height for all of these is 0.3mm (cura defaults to 0.3 or 0.27 depending).  The numbers below indicate my best guess as to how far the nozzle was from the bed (again assuming .3mm is nominal).  

    The yellow one is a bit too squished but at least the part WILL NEVER COME LOOSE!  lol.  Danger is it might pull up glass when you try to get the print off.
    The blue one is about perfect if you want it to stick really well.  This is my goal squishiness.
    The red one is okay for small prints but for large prints they may come loose.  This is typical if you use the calibration card or auto level.
    The black one is leveled much too high above the bed.
    I aim for red or blue depending on my goals.  

    If I want it to stick better I squish a little more.  If I don't want the bottom layer to have a tiny brim I usually just set initial horizontal expansion to -0.2 or so but sometimes I instead go with what you see in red below.  For example if I'm printing tiny gear teeth, initial horizontal expansion of -0.2 will ruin them so I might go with -0.1 I.H.E. and level like the red one.

    I usually adjust the 3 screws (BY EQUAL AMOUNTS) at the start of every print although once it's perfect I don't have to touch leveling for months.

    skirt.png

     

  • Link to post
    Share on other sites

    Posted · UM3 print problem

    Today I had the same problem.

    Yesterday I put my new bed glass, did manual and active leveling then printed some objects, then I turned off printer and go to bed. ?
    Today I started the print with automatic leveling. The printer checked the leveling and then the print started by sliding the nozzle onto the glass.
    I redid the manual leveling and it was correct. I redo the active leveling and relaunch the print. Now works.
    Ok the active leveling is not always better to use but I do not understand if fails the active leveling or z rises beyond what it should or I did something wrong.
    Thanks you all.

  • 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...