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V-King CoreXY

Discussion in '3D printers' started by Roy Berntsen, Oct 10, 2018.

  1. Roy Berntsen

    Roy Berntsen Well-Known
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    Roy Berntsen published a new build:

    Read more about this build...
     
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  2. Mark Carew

    Mark Carew OpenBuilds Team
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    Great Build @Roy Berntsen ! Great large 3D printer. I also really like the idea of belted Z to remove any lead wobble from the system. How do you keep the bed from lowering when power is off?
     
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  3. Kyo

    Kyo Master
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    @Roy Berntsen
    Cool design. :thumbsup: I look forward to looking it over in more depth after work tonight.


    Have you seen the z-axis electrical brake from LulzBot "Here"?

    Mini2_Z-axis_Brake_Board_Kit_Angle.JPG

    Looks like a nice solution to a belt driven z-axis.
     
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  4. Roy Berntsen

    Roy Berntsen Well-Known
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    I use a 1:20 wormgear to hold the bed from falling. It can take a party on the bed nothing happening
    IMG_20180912_093503_575.jpg
    20181002_163952_HDR.jpg
     
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  5. Roy Berntsen

    Roy Berntsen Well-Known
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    Have you seen the z-axis electrical brake from LulzBot "Here"?

    View attachment 35283

    Looks like a nice solution to a belt driven z-axis.[/QUOTE]

    Believe me I have been though most solutions for the belted Z as did the designer of the KISS CoreXY as is the inspiration for this design and we both found the wormgear being the simplest, easiest and reliable solution. Its only downside is that it is not easy to find a supplier with a reliable tolerance scheme for these gears. We are currently researching some from misumi with a lower module

    My current supplier is a Chinese on AliExpress and they are not always good
     
  6. Mark Carew

    Mark Carew OpenBuilds Team
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    I agree the worm gear is a great simple solution. I like the idea of the break as well and I could see that being helpful along other axis to maintain position, but on the Z you will always have some drop, so I think the worm gear is a better choice.
    There is a company called stock drive products and they may have anti-backlash worm gear solution that may help.
    Great machine, keep up the good work! :thumbsup:
     
  7. JustinTime

    JustinTime Master
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    Roy, I'm interested in the control panel (iPad?) that you are using. Is it connected via bluetooth? What app are you using? Since you are using Merlin I guess that is supports this setup.
     
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  8. Roy Berntsen

    Roy Berntsen Well-Known
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    Hi!

    I am running the printoid app controlling octoprint from a tablet. Search app store or play store for printoid
     
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  9. Hellsbellsidaho

    Hellsbellsidaho Well-Known
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    Is this available in a dual extruder?
     
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  10. Roy Berntsen

    Roy Berntsen Well-Known
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    Hi Mr! I do have a X carrier for the e3d Chimera/Cyclops but this has not been tested
    20180715_114007.jpg
     
  11. Balu

    Balu Veteran
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    Yes, but doesn't this add belt stretch instead when the build on the plate gets heavier?
     
  12. Roy Berntsen

    Roy Berntsen Well-Known
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    The belts are reinforced so no it is fine
    20180908_180157.jpg_PatreonTextAnnotated.jpg
     
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  13. Anthony Payne

    Anthony Payne Well-Known
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    do you have any sources for the 555mm rod? The longest I'm finding is 500mm.
     
  14. Roy Berntsen

    Roy Berntsen Well-Known
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  15. Anthony Payne

    Anthony Payne Well-Known
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    Perfect, Thanks For the Quick reply! Hopefully, I'll have this guy up and running in the next couple weeks.
     
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  16. Roy Berntsen

    Roy Berntsen Well-Known
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    Cool - Great to hear

    Also welcome to the FB club if you use fb - I dont have any else communities going atm
     
  17. Anthony Payne

    Anthony Payne Well-Known
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    No FB, but I will be on here a lot of the time, I'm having to redo some of the files I was given some T-Track, but it is 2525 I did order a couple piece of the 2020 V-track for some key parts, but for the most part my frame will be 2525. I will let you know how it goes I saw on GitHub you are working on some 8mm worm gear files, are you planning on changing over to an 8mm rod?
     
  18. Roy Berntsen

    Roy Berntsen Well-Known
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    Ok Mr. I might set up a forum on vkingprinter.com for non fb users. I need to get back to this

    I had one user wanting 8mm rod so we made a prototype. There are no plans for this to be stock setup.

    I am by the way looking for a 0.8 modul worm as this is something misumi deliver high Quality We are testing this these days

    It will be more expensive and possibly hard to get ordered so might just be an upgrade
     
  19. Thuncotos

    Thuncotos New
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    Hi I have a couple questions, how many 3D printed parts are needed? and are both are the worm gears needed to be bought in 5mm on the worm gear set?
     
  20. Roy Berntsen

    Roy Berntsen Well-Known
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    Hi Mr. Ther
    Hi! it is about 70 parts in total to print. The worm is both 5mm id yes

    Worm Gear – V-King CoreXY 3D Printer
     

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