Jump to content
UltiMaker Community of 3D Printing Experts

Z axis freezes


VBill

Recommended Posts

Posted (edited) · Z axis freezes

hello
I use an anet A8 with the original firmware and CURA since version 3.5.

Since version 3.6 I have some problems:
On some parts the Z axis freezes.
For example my last print which is a total of 17mm high with supports, the printing starts and works very well up to 7.9mm then the Z axis remains locked at this value, but the printing of the layers does not stop. This damages the print head.


I tried to regenerate the gcode: idem
Other printing can be done without any problem
 

Of course I checked the functioning of the Z axis in manual mode and there is no problem.

Does anyone have any idea

Edited by VBill
  • Link to post
    Share on other sites

    Posted · Z axis freezes

    My Cura profile : https://drive.google.com/file/d/1y8SF37k-5CYBk128MLVfaw_8yi1os8UR/view?usp=sharing

     

    My gcode start :

    G21 ;valeurs métriques

    G90 ;positionnement absolu

    M82 ;mettre l'extrudeuse en mode absolu

    M107 ;commencez avec le ventilateur éteint

    G28 X0 Y0 ;déplacer X / Y à des butées min

    G28 Z0 ;déplacez Z en butées min

    G0 X0 Y15 F9000 ;Lit en avant

    G0 Z0.15 ;Déposer au lit

    G92 E0 ;zéro la longueur extrudée

    G1 X40 E10 F500 ;Extruder 10 mm de filament sur 4 cm

    G92 E0 ;zéro la longueur extrudée

    G1 E-1 F500 ;Rétracter un peu

    G1 X80 F4000 ;Essuye rapidement la ligne de filament

    G1 Z0.3 ;Levez et commencez à imprimer.

    G1 F9000 ;Message imprimer

    M117 Impression...

     

    End :

    M104 S0 ;chauffage de l'extrudeuse éteint

    M140 S0 ;chauffe-lit chauffant éteint

    G91 ;positionnement relatif

    G1 E-1 F300 ;rétracter un peu le filament avant de soulever la buse, pour libérer une partie de la pression

    G1 Z+0.5 E-5 X-20 Y-20 F9000 ;déplacez Z un peu et retirez le filament encore plus

    G28 X0 Y0 ;déplacez X / Y jusqu'à la butée min, de sorte que la tête soit à l'écart

    G90 ;positionnement absolu

    G1 Y190 F9000 ;le lit se déplace vers l'avant

    M84 ;steppers off

  • Link to post
    Share on other sites

    Posted · Z axis freezes

    Search your gcode file for the letter "Z".  It appears several times at the top of the file but then only once per layer.  Look at those values and see if something goes wrong at some point.

     

    I strongly suspect cura is fine and something is wrong with the Z axis.  Maybe the feedrate is too fast for your printer.  It will be the F number on the same line as the Z.  The F value is in mm/minute so it's 60 times larger than the speed in mm/sec.  Example:

     

    G0 Z12.1 F6000

     

    That would move to position nozzle 12.1mm above glass and at a speed of 100mm/sec (6000/60=100).

     

     

     

  • Link to post
    Share on other sites

    Posted · Z axis freezes

    Hello
    I have performed several checks including the gcode (thanks gr5)
    I didn't find anything strange and the printing was blocked on the Z axis at the end of the support (6.9mm for my part)
    Finally I started again from the basic PLA Fine setting on CURA and is modified some parameters (temp, wall etc) and now everything works.

    This is all weird.
    Greetings

  • 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
        • 31 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...