Kobra 3 Z Axis Fix (English)

แชร์
ฝัง
  • เผยแพร่เมื่อ 15 ม.ค. 2025

ความคิดเห็น • 31

  • @wilmspark
    @wilmspark 23 วันที่ผ่านมา

    It's very cool that you took the time to make this video to help others. Thank you!

  • @RichardSandstrom1163
    @RichardSandstrom1163 25 วันที่ผ่านมา

    Good Job!!! Thanks for posting this to help people understand how to fix their Z Axis.

  • @michaelgruber5372
    @michaelgruber5372 9 วันที่ผ่านมา +1

    Bzgl. Montage der Kugellager: Zuerst den oberen Teil der Kupplung festmachen, dann das Gewicht auf die Lager drücken lassen und dann erst unten festschrauben?

    • @silentcorestudios
      @silentcorestudios  9 วันที่ผ่านมา +1

      Ja, den unteren Teil der Kupplung erst festziehen, wenn das Gewicht des Gantries über die Gewindestange voll darauf lastet und der obere Teil fest ist..

  • @winglo7246
    @winglo7246 2 วันที่ผ่านมา

    I had kind of the same problems. After disassembling the 2 rods i found out that in my case the Z-backlash modules were so tight i really had to put some force in it to just get the rods trough them. I replaced both modules for Cr10 anti backlash T8 modules and all my Z axis problems are gone..

    • @silentcorestudios
      @silentcorestudios  2 วันที่ผ่านมา +1

      This is because the motor is working at its performance limit due to its incorrect load. With mine, it is was enough to lift and support the filament tubes just a bit. The problem is the axial incorrect load, the motor could perform much greater radial load...

    • @winglo7246
      @winglo7246 2 วันที่ผ่านมา

      @@silentcorestudios In my example that was not the case as i disassebled the whole rod. I only had the rod with the baklash module in my hands and tried to turn the backlash/lead screw module. It was almost unmovable, only with excessive force. The second rod was simular. Those leadscrew/baklash modules were way too tight.. As i said, after replacing both i can put the axis up and down with easy if i turn the axis on the motor side.

    • @olehandwerk4692
      @olehandwerk4692 2 ชั่วโมงที่ผ่านมา +1

      Thank you! I had the same problem - the plastic parts were too tight on the thread, and I could barely move not good by hand. With the Cr10, it's much better now! I'm also going to do the bearing upgrade. Thanks for the help!

  • @pawprints-z8o
    @pawprints-z8o 25 วันที่ผ่านมา +3

    Thanks for the video. Very clear and easy to follow. Any chance you could provide Amazon links to something that would work? It would make it easier for non-experts that do not understand German to source the parts. Even if not ordering from Amazon, we can use the link as a reference to source somewhere else. Many thanks!

    • @GESion140
      @GESion140 25 วันที่ผ่านมา +2

      Miniature axial ball bearings [F5-12M]-M-d1-12 [5x12x4 mm]
      For use in special conditions. The miniature axial bearing F5-12M-M-d1-12 is small and is suitable for mounting in limited space and on thin shafts. It absorbs loads from an axial direction and can be dismantled.

    • @silentcorestudios
      @silentcorestudios  25 วันที่ผ่านมา +2

      The link with all the specs is in the video description..

    • @SweetchuckIPAD2
      @SweetchuckIPAD2 13 วันที่ผ่านมา

      @@silentcorestudios the link is off

    • @silentcorestudios
      @silentcorestudios  13 วันที่ผ่านมา

      @@SweetchuckIPAD2 Seems like the whole website is down for the moment..

  • @checkoakela7435
    @checkoakela7435 25 วันที่ผ่านมา

    God job friend!

  • @introspect2
    @introspect2 25 วันที่ผ่านมา

    Great video - thank you. Serious question, why wouldn't you just use a single sealed bearing instead of this setup??? Seems like the open bearing unit would gather a lot of dust

    • @silentcorestudios
      @silentcorestudios  25 วันที่ผ่านมา +2

      Before there was just a hole and the dirt fell directly into the stepper motor. This option consists of only 2 bearings, it is an extremely simple solution, there are certainly other approaches. I will test and use it this way for now.

  • @majkysilipa
    @majkysilipa 25 วันที่ผ่านมา +2

    Why they (Anacubic) dont use 2 motors for Z axis? Motor is not so expensive ...

    • @NetrunnerAT
      @NetrunnerAT 18 วันที่ผ่านมา +1

      Simpliefy Design. Dual Z-Axis need different Startup Routine to Balance the gentry.

    • @majkysilipa
      @majkysilipa 18 วันที่ผ่านมา

      @NetrunnerAT aaa, ok

  • @calilifestyle
    @calilifestyle 6 วันที่ผ่านมา

    thanks

  • @regstamand9051
    @regstamand9051 19 วันที่ผ่านมา +1

    Why 2 sets of bearings ?

    • @iamabsolutebeing
      @iamabsolutebeing 19 วันที่ผ่านมา +2

      Because of the needed hight, its better than using washers or other parts..

    • @regstamand9051
      @regstamand9051 18 วันที่ผ่านมา

      Thank you for the clarification, I ordered one way bearings and will be doing this. My 1st layer is all over the place even with self leveling every print hoping this is my solution

  • @stevenjunge6022
    @stevenjunge6022 25 วันที่ผ่านมา

    Did you think it solves the problem with the first layer?

    • @silentcorestudios
      @silentcorestudios  25 วันที่ผ่านมา +1

      Not sure, but the original design is not right, so its good to do the upgrade anyway..

    • @NetrunnerAT
      @NetrunnerAT 18 วันที่ผ่านมา

      ​@@silentcorestudios i use 3d Printer since "Mandel" Design releases on GitHub. Over so many years, No one use axial beerings to unload z-axis wight. I will give it a shot. Possible new Anycubic steppers are Cheap Like hell.

  • @jesperahman738
    @jesperahman738 12 วันที่ผ่านมา

    This is a very common design, not sure i´d call it a design flaw. All 3D-printers I've owned during the last 10 years have had the same type of Z-axis design with the gantry weight on the stepper motor axle. I haven't seen a single issue related to this.

    • @silentcorestudios
      @silentcorestudios  12 วันที่ผ่านมา

      Well, it might work to a point, but the gantry became quite heavy, these days.. Design wise, its not a correct layout, the thrust bearing IS missing and it would not be the first printer suffering from this issue:
      www.reddit.com/r/ender3/comments/qcwx4e/i_finally_figure_out_why_my_layers_were_uneven/?rdt=39114

  • @Poshtron79
    @Poshtron79 18 วันที่ผ่านมา

    There is a simpler and much more efficient solution that it is small bearing that does not solve the problem on high prints. it is the brass ring that now comes the X gantry that allow the Z axis to go up and down. at the moment you will have nothing else more efficient.

    • @felixrichter3939
      @felixrichter3939 13 วันที่ผ่านมา

      Welcher Messingring genau?