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Thread: Concrete VMC

  1. #261
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    Default Re: Concrete VMC






















  2. #262
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    Default Re: Concrete VMC

    Today i machined the main shaft that is holding the plate on where the tool grippers are. I also made a small new movie with a status update on the machine. You can also see the toolchanger move.

    Stef

















  3. #263
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    Default Re: Concrete VMC

    First of all, great work Stef and kudos to your persistance on a such an extensive project!

    Question:
    Saw that you prepared yourself for the 4&5th axis too. Do you intend to build it on your own? If so, what kind of mechanics do you intend to use? Harmonic drive?

    And may I ask were you anytime considering an HSK spindle and why you didn’t go for it at the end?

    P.S.
    Would love to see your project insights even more often.

    All the best,
    Aleksandar Sladic



  4. #264
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    Default Re: Concrete VMC

    That is really coming along!! Will the tool changer have an enclosure or be exposed to the coolant and flying chips?



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    Default Re: Concrete VMC

    @SladicStroj i bought that BT30 spindle already a long time ago. At that point i dint really tough about other spindles then a bt30. I still don't regret this spindle so far it works perfect.

    @
    rocketflier Yes there will be an cover around the carousel with a door that opens when the carousel moves in.

    This weekend if finished up the last wiring en coding on the macro, made 2 videos about it one that explains the tool change process and the other one show some small machining with the use of a few tool changes.

    Stef







  6. #266
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    Default Re: Concrete VMC

    I can't believe no one has commented yet since your last update. Awesome progress! Youtube actually recommended your videos for me before I even checked your thread.

    I love your touch screen and interface, it looks fantastic. Did you do the interface work yourself?



  7. #267
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    Default Re: Concrete VMC

    Very nice, I haven’t checked in awhile. Great progress!


    Sent from my iPhone using Tapatalk Pro



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    Default

    Really nice project!
    Does your vfd stop at a certain orientation? How do you set that up?

    Aluminum frame CNC router, JET GHB-1340 Lathe conversion, Bridgeport BOSS Retrofit, I'm gonna be busy for a while.


  9. #269
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    Default Re: Concrete VMC

    Hi, can you kindly tell me which model you used like Shaft Couplings?



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    Default Re: Concrete VMC

    Quote Originally Posted by dbsharp View Post
    Really nice project!
    Does your vfd stop at a certain orientation? How do you set that up?
    He is using a servo motor for the spindle.



  11. #271
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    Default Re: Concrete VMC

    Hi Stef,

    Lovely machine. I am looking at making my own cnc as well, what size linear slides have you used on the x,y,z axis?
    Pre-loaded carriages, what rated preloading do they have??

    Many Thanks
    Ian



  12. #272
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    Default Re: Concrete VMC

    Curious also if you have cut steel on it?

    Thanks



  13. #273

    Default Re: Concrete VMC

    Great work, Stef!

    I'm a machine service tech repairman since almost 20 years, and I must say I'm very impressed by your work. Very nice indeed. I'd love to build something similar one day, this is great inspiration. Right now setting up a small 120 m2 home machine shop, but for now I'm installing old school manual milling machines and lathe. A surface grinder and a cylindrical grinder by TOS. Latest addition is a 550x350x450 VMC by aerospace machine supplier Modig Machine tools. Old school TNC150 control, my first CNC.

    Keep up the fantastic work, thumbs up to you! /Lasse



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    Default Re: Concrete VMC

    Stef,
    I have just finished reading the thread from start to finish. Your attention to detail is outstanding and amazing build.

    I am/was preparing for my concrete router build but now rethinking my plans after seeing yours.
    Do you mind sharing the cost for getting the laser cut table?

    Cheers
    Dave.



  15. #275
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    Default Re: Concrete VMC

    Stef,

    Can't say enough about your build. I've done a few and this one is beautiful and inspiring, especially the creative methods to avoid shipping parts our for 3rd party finishing. I've read the entire thread, and for some reason I can't find your selection of linear rails and bearings. Would you mind providing some guidance on how you sized them and what supplier you went with?

    Cheers,
    David



  16. #276
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    Default Re: Concrete VMC

    Hey David,

    I selected the rails on a feeling. its not really based on a calculation. i bought them all on aliexpress at the same seller:
    https://nl.aliexpress.com/store/4373...ead_12242861.0

    Stef



  17. #277
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    Default Re: Concrete VMC

    Made a small video about a project im working on now. It can show you some actual machining with sound.





  18. #278
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    Default Re: Concrete VMC

    Hi Mckoz- David
    The rail suppliers (like Hiwin) have design manuals that lay out how to size rails and cars. They have worked examples as well.. Peter

    https://www.hiwin.com/downloads.html#manuals



  19. #279
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    Default Re: Concrete VMC

    [QUOTE=stef110;2380710]Made a small video about a project im working on now. It can show you some actual machining with sound.

    QUOTE]

    Impressive- nice work



    Sent from my iPhone using Tapatalk Pro



  20. #280
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    Default Re: Concrete VMC

    Quote Originally Posted by peteeng View Post
    Hi Mckoz- David
    The rail suppliers (like Hiwin) have design manuals that lay out how to size rails and cars. They have worked examples as well.. Peter

    https://www.hiwin.com/downloads.html#manuals
    Thanks for the link Pete.



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