Jump to content
UltiMaker Community of 3D Printing Experts

front of the buildplate "shakes"


Recommended Posts

Posted · front of the buildplate "shakes"


I'm wondering if i'm the only one facing this;

when printing large prints, for instance i'm printing a tower with a dimension of 200X200X200 MM, when the print-head reaches the front of the build plate the build plate seems to be "shaking". it's a couple of MM and it seems to be causing irregularities in my print..

did not check if any of my other printers do the same but did anyone experience something like this before?



  • Link to post
    Share on other sites

    Posted · front of the buildplate "shakes"

    I think its inevitable that you are going to get more movement at the front of the build plate, just due to the distance from the anchor points at the back of the bed.

    That said, I would also make sure that all of your bed springs are reasonably well tensioned to begin with. The bed tends to droop slightly under its own weight, so that the springs at the front are less compressed than the one at the back, to begin with. Its easy to end up with them barely compressed at all - which will certainly cause the front of the bed to shake.

    Make sure that you tighten down the back spring until the terminal block under the bed is almost touching the base plate, before you run the leveling wizard. This will make sure that all three springs are as tense as possible in normal use, and should minimize any vibrations at the front edge.


  • Link to post
    Share on other sites

    Posted · front of the buildplate "shakes"

    Thanks Illuminarti, i did not try that yet.

    completely agree that the front will always be moving a bit.. but i'm really seeing shaking that is affecting the quality of the print :(


  • Link to post
    Share on other sites

    Posted · front of the buildplate "shakes"

    Hi Korneel and others,

    Yes! I'm having similar problems. If the filling is being made, the head moves over a series of previously-laid strings and air. This, with certain speed, yields in an intermittent reaction force. This intermittent force causes the bed to vibrate, in one or more of its natural frequencies. If you play with the speed % button during the build, you can see and feel that your right within or right next to this natural frequency. Running faster or slower brings you out of the danger zone.

    This is a general dynamical effect.

    The two parameters that influence the natural frequency are stiffness and mass.

    Of course you can make the be stiffer by adding beams or so, but tweaking with mass is easier.

    My plan is to add substantial weight into the space between the bed plate and the heated bed (approx. 13mm left there), so to bring the natural frequency much down. Then, when building at reasonable speed, I end up pretty much higher frequent than this natural frequency (and hopefully not meeting the second natural response - twisting!).

    I was just going to experiment with it, and then discuss it here, but then this thread came across.

    Any better options? Post them!



  • Link to post
    Share on other sites

    Posted · front of the buildplate "shakes"

    I thought the back screw had to be as much tight as possible. Is it necessary to tight/lose that screw when calbrating bed?. I never touch it.

  • Link to post
    Share on other sites

    Posted · front of the buildplate "shakes"

    I have had this problem too, The bed violently vibrates especially when the printer prints the fill in structure. Instead of hanging weights (which I was worried might affect/bend the build plate/the build plate mechanics in the long run) I cut dampers out of 2 inch thick upholstery foam and placed a square under each of the feet, it has vastly reduced the vibration problem and the print quality is pretty much back to normal.


  • 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...