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Thread: My mini VMC

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  1. #1
    Join Date
    Mar 2009
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    1114

    My mini VMC

    Hello, just wanted to share what i've been up to. My plans are to build a mini VMC. I will be using a X2 spindle for now and a modified X1 extended table. It will have a full enclosure, flood coolant, ATC etc...

    Anyway here it is on paper.



    And how where I'm at so far.

    Next to the X2




    and just a shot of the head clamped in place (roughly)


    Thanks

  2. #2
    Join Date
    May 2006
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    573
    Looking good. Out of curiosity, did you consider mounting rails to the x axis plane and the carriages to the y axis. This way you would save quite a bit of weight and some width.

  3. #3
    Join Date
    May 2005
    Posts
    2502
    Kewl!

    These built from scratch machines are always interesting.

    Cheers,

    BW

  4. #4
    Join Date
    Aug 2007
    Posts
    558
    Hey, that's looking good! Kind of similar to Arie Kabaalstra's little mill. What are the travels going to be? What steel stock are you using? This ought to be an interesting thread.

    Funnily enough, I just ordered some steel for my next project about an hour ago - a mini VMC...

    Best regards,

    Jason

  5. #5
    Join Date
    Mar 2009
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    1114
    Looking good. Out of curiosity, did you consider mounting rails to the x axis plane and the carriages to the y axis. This way you would save quite a bit of weight and some width.
    I did, I was torn between which way to do it. I decided to do it this way because I like the idea of just the table moving instead of the table/motor/ball-screw all moving as one. Plus i believe it will much more rigid this way. Also saving weight isn't always a good thing in machinery.

    Hey, that's looking good! Kind of similar to Arie Kabaalstra's little mill. What are the travels going to be? What steel stock are you using? This ought to be an interesting thread.

    Funnily enough, I just ordered some steel for my next project about an hour ago - a mini VMC...

    Best regards,

    Jason
    It's very similar to Arie's. Travels are somewhere in the ball park of X-15" Y-10" Z-10". I'm just using 1018 CRS. It's strong, easy to machine, and reasonably cheap.

  6. #6
    Join Date
    May 2006
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    573
    No, weight isnt a bad thing. I usually over dimensions my machine for the same reason and for the reason that im to lazy to calculate anything:-) Also you got a point there with the "stationary" motor. Just remember to think up some cover.

    How do you cut your pieces?

  7. #7
    Join Date
    Mar 2009
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    1114
    Quote Originally Posted by Guldberg View Post
    No, weight isnt a bad thing. I usually over dimensions my machine for the same reason and for the reason that im to lazy to calculate anything:-) Also you got a point there with the "stationary" motor. Just remember to think up some cover.

    How do you cut your pieces?
    Everything in the picture was done on a bridgeport manual mill with a Grizzly DRO. Covers are in the back of my mind. When the time comes i will fab some up. Probably going to be out of sheet metal. Im not 100% sure how i want to do it yet.

    Thanks

  8. #8
    Join Date
    Sep 2006
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    1738
    I really like your design, nice mill.


    -Jason

  9. #9
    Join Date
    Mar 2006
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    474
    Great design, I've been thinking of building something like that...mostly because I spend all day staring at a bunch of Haas VMC's.

  10. #10
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    Mar 2009
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    Quote Originally Posted by vlmarshall View Post
    Great design, I've been thinking of building something like that...mostly because I spend all day staring at a bunch of Haas VMC's.
    Yeah me too.

  11. #11
    Join Date
    Mar 2006
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    474
    Quote Originally Posted by Starleper1 View Post
    Yeah me too.
    Haha, I thought so. Keep us updated, this is really looking good!

  12. #12
    Join Date
    Apr 2009
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    2

    tr1404

    this is design by myself,how about you think than can work good,

  13. #13
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    Mar 2009
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    1114
    Quote Originally Posted by asiaschain View Post
    this is design by myself,how about you think than can work good,
    not sure what your are trying to say/ask?

  14. #14
    Join Date
    Nov 2008
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    73
    Quote Originally Posted by Starleper1 View Post
    Yeah me too.
    hahaha Ive want to build a cnc since the first time i ran one!! I started off with an easy project, a plasma table. Now I am starting to put together the design for my vmc. Yours is looking good!!! Keep it up.

    Jim

  15. #15
    Join Date
    Mar 2009
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    1114
    Heres a rough idear of what I plan on doing for the ATC. It will be 8tool.

    Retracted View


    Extended

  16. #16
    Join Date
    Nov 2008
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    73
    I like it, nice and simple. how are you going to operate the drawbar?


    :cheers:

  17. #17
    Join Date
    Mar 2009
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    1114
    pnuematic cylinder and bevelle spring washers

  18. #18
    Join Date
    Feb 2005
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    829
    great looking machine.

    SOLIDWORKS FTW!!

  19. #19
    Join Date
    Mar 2006
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    474
    Think you could move that toolchanger column out of the table's X-axis?

    It's kinda limiting the length of parts hanging off that end of the table where it is now.

  20. #20
    Join Date
    Jun 2008
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    130
    Quote Originally Posted by vlmarshall View Post
    Think you could move that toolchanger column out of the table's X-axis?

    It's kinda limiting the length of parts hanging off that end of the table where it is now.
    +1 Have a look at how Hoss has his set up, it seems to work well. Alternately you could have the wheel with the tools fixed in place, and an arm to pivot between it and the spindle to move the tools between them.

    Jim
    No time to do it right, plenty of time to do it twice.

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