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V-King CoreXY

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

V-King CoreXY

V-King CoreXY

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

V-King CoreXY 3d Printer- 380*340*340 Build volume - All wheels on V-Slots - Belts on XYZ - High quality and controlled design - Proven fast, reliable and it is all open source

HyperCube V-King KISS CoreXY 3dPrinter
  1. Roy Berntsen

    Roy Berntsen New
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    Roy Berntsen published a new build:

    Read more about this build...
     
    #1 Roy Berntsen, Oct 10, 2018
    yaman likes this.
  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?
     
    #2 Mark Carew, Oct 10, 2018
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  3. Kyo

    Kyo Veteran
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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.
     
    #3 Kyo, Oct 10, 2018
    Mark Carew and Roy Berntsen like this.
  4. Roy Berntsen

    Roy Berntsen New
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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
     
    #4 Roy Berntsen, Oct 10, 2018
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  5. Roy Berntsen

    Roy Berntsen New
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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
     
    #5 Roy Berntsen, Oct 10, 2018
  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:
     
    #6 Mark Carew, Oct 11, 2018
  7. JustinTime

    JustinTime Veteran
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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.
     
    #7 JustinTime, Oct 11, 2018
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  8. Roy Berntsen

    Roy Berntsen New
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    Hi!

    I am running the printoid app controlling octoprint from a tablet. Search app store or play store for printoid
     
    #8 Roy Berntsen, Oct 12, 2018
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  9. Hellsbellsidaho

    Hellsbellsidaho New
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    Is this available in a dual extruder?
     
    #9 Hellsbellsidaho, Oct 15, 2018
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  10. Roy Berntsen

    Roy Berntsen New
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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
     
    #10 Roy Berntsen, Oct 15, 2018
  11. Balu

    Balu Well-Known
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    Yes, but doesn't this add belt stretch instead when the build on the plate gets heavier?
     
    #11 Balu, Oct 19, 2018
  12. Roy Berntsen

    Roy Berntsen New
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    The belts are reinforced so no it is fine
    20180908_180157.jpg_PatreonTextAnnotated.jpg
     
    #12 Roy Berntsen, Oct 20, 2018
    Peter Van Der Walt and Balu like this.
  13. Anthony Payne

    Anthony Payne New
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    do you have any sources for the 555mm rod? The longest I'm finding is 500mm.
     
    #13 Anthony Payne, Nov 17, 2018
  14. Roy Berntsen

    Roy Berntsen New
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    #14 Roy Berntsen, Nov 17, 2018
  15. Anthony Payne

    Anthony Payne New
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    Perfect, Thanks For the Quick reply! Hopefully, I'll have this guy up and running in the next couple weeks.
     
    #15 Anthony Payne, Nov 17, 2018
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  16. Roy Berntsen

    Roy Berntsen New
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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
     
    #16 Roy Berntsen, Nov 17, 2018
  17. Anthony Payne

    Anthony Payne New
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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?
     
    #17 Anthony Payne, Nov 21, 2018
  18. Roy Berntsen

    Roy Berntsen New
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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
     
    #18 Roy Berntsen, Nov 22, 2018
  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?
     
    #19 Thuncotos, Nov 26, 2018
  20. Roy Berntsen

    Roy Berntsen New
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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
     
    #20 Roy Berntsen, Nov 26, 2018
  21. Roy Berntsen

    Roy Berntsen New
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    Updated parts folder with latest iterations
    20181124_170147.jpg
     
    #21 Roy Berntsen, Dec 12, 2018
  22. Munks1

    Munks1 New
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    Hi Roy

    I was watching you YouTube video how you assemble the printer.
    And I noticed that the parts in your video is not the same in as the one I downloaded from this site.
    The 2 parts called X idler 5mm bracket.
    Is there a reason for this?
     
    #22 Munks1, Feb 10, 2019
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  23. Roy Berntsen

    Roy Berntsen New
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    Hi Mr. I am sorry if this is confusing. The machine has been improved during the last year and also some parts to improve mechanics. Do you refer to the live build or the animation?.

    If you are able to get the files from github they are always updated with latest and verified tested best parts. Can you have a look there?

    RoyBerntsenDesign/V-King
     
    #23 Roy Berntsen, Feb 15, 2019
  24. TimS

    TimS New
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    Hey Roy. I'm working on my own cartesian cube style 3D printer and was closely considering yours before deciding on my own. That said I appreciate your design and I like many of the elements of it. I'm using some of your ideas for my printer, specifically the worm gear for a belt driven Z axis. I noticed on your site under worm gear info it has 20:1 ratio worm gear and the belt run making it 40:1. Then it states 3200 step/min with 1/16 microstepping. Doing the math I only came up with 1600. Is there another reduction I'm missing? Is my math wrong?

    20t 2mm pitch pulley= 40mm per rev.
    200 step motor/40mm= 5 steps/mm
    5 step/mm x 16 microsteps = 80 microsteps/mm x 20 (for the 20:1 worm gear)= 1600 steps/mm

    Also is there a reason you ran the Z-belt the way you did versus a simple loop with the clamp on the bed frame?
     
    #24 TimS, Nov 12, 2019
  25. Roy Berntsen

    Roy Berntsen New
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    The belt is a double loop as give 2x the gearing. This similar system as to crane systems. I did have single loop first but was not happy with that system
     
    #25 Roy Berntsen, Nov 13, 2019
  26. TimS

    TimS New
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    Ahh. Okay. Can you explain why you didn't like the single loop? That's what I had planned on but if your system works better then I will redesign.

    Sorry if this was explained in one of your blogs. I haven't had a chance to watch many of them.

    And thank you for your help and any of the parts files I may use from your build. I bought you a coffee on your site as thanks. ;)
     
    #26 TimS, Nov 13, 2019
  27. Roy Berntsen

    Roy Berntsen New
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    The single loop gave a very constrained belt path difficult to tension right. The dual loop was more forgiving I felt
     
    #27 Roy Berntsen, Nov 13, 2019
  28. Bud Griffin

    Bud Griffin New
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    Hi Roy,

    I've downloaded your Fusion 360 file (several times) off of your website and it doesn't want to completely unpack the f360 archive. I get an error that says "Part Build Plate.f3d could not be uploaded due to access denied...Please contact project moderator for assistance". I've downloaded multiple times with the same issue. It doesn't unpack when uploaded to the web app account.

    Any ideas?

    Thanks,

    Bud
     
    #28 Bud Griffin, Dec 3, 2019
  29. gluemelt

    gluemelt New
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    I have just started this build, so far using Esun PLA+ with great results.

    I didn't see any mention of spacers, although I did see quite a few washers... are the washers being used as spacers for this build?
     
    #29 gluemelt, Jul 21, 2020

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