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OpenBuilds OX CNC Machine

Discussion in 'CNC Mills/Routers' started by Mark Carew, Dec 15, 2013.

  1. mihaib

    mihaib New
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    Hello Flo. Can you give me details about shop were you find hf spindle? Thanks
     
  2. Florian Bauereisen

    Florian Bauereisen Well-Known
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    Hi,
    actually you might buy just any of the chinese hf spindles on e-bay.
    I got mine from a company based in Germany for 2 reasons:
    I get a bill and warranty and secondly because you will need to (at least check) make sure about the elect. ground on the spindle.
    As i basically have very little experience with 220V i prefered to pay a bit more for the service - for beeing safe.
    Mine is from Sorotec in Germany, cost arpox 400 Euro but buy on e-bay direct in china youll end up around 250 Euro.
    A FU unit sets you back another say 100 Euro.

    greets

    flo
     
  3. Franco Ponticelli

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    Hey guys, this thread became huge so I am sorry if my question has already received an answer before.
    Without changing the elements of the OX, do you believe it could sustain using 1000mm beams for x and y? How do you calculate the effective area given these dimensions?
     
  4. Robert Hummel

    Robert Hummel Custom Builder
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    My Y axis on the OX AI is 1250mm
    X 900, all runs smooth by hand electronics are in the works
     
  5. Mark Carew

    Mark Carew OpenBuilds Team
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    @Yusuf Tumer I did a quick carve with a dremel 1/4 wide-1/8th shaft V bit I had laying around and it was not a problem it did great!
    Had a piece of dirty old cedar decking plank laying around (screwed it down to the spoiler board) and used ArtCam for the code

    DSC03626.JPG
    DSC03624.JPG DSC03625.JPG DSC03627.JPG PXC_29032.jpg

    Also did a more complicated carve and made a short video, enjoy :)
     
    #545 Mark Carew, Mar 26, 2014
    Last edited: Mar 26, 2014
    Chris Laidlaw, skarab, asb_79 and 2 others like this.
  6. Mopar32985

    Mopar32985 Well-Known
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    Looks great mark I'm loving my machine. Got almost everything working the way I want it.
     
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  7. Mark Carew

    Mark Carew OpenBuilds Team
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    Awesome bro glad to hear it, nothing like having a machine it dialed in. :thumbsup:
     
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  8. Yusuf Tumer

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    @kram242 That's exactly what I was after. Thanks!
     
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  9. Mark Carew

    Mark Carew OpenBuilds Team
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    More then welcome @Yusuf Tumer it was fun to try and now I want to make more with a better bit :)
     
  10. Yusuf Tumer

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    Was the tear out in the photo's due to the quality of the bit or because you were running a 'roughing' speed/feed?
     
  11. Mark Carew

    Mark Carew OpenBuilds Team
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    It was really my first time trying this style an I think a combination of feed rate/dull burnt bit was causing the tear look. Once the bit did its other passes and as it reached the proper depth it cleaned all the tears out. I am confident that once we get this cutting technique dialed in it will come out look fantastic!
     
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  12. Yusuf Tumer

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    Don't get me wrong. The finish in the video looked much better as the router did it's final passes. I was just curious as I don't have much experience in these things.
     
  13. Mark Carew

    Mark Carew OpenBuilds Team
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    As for V carving I am new as well :) After the milling I went back and lightly hit the surface with sand paper and it looked great.
    I would like to try and stain the wood first and then do the v carve and see how that turns out.
     
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  14. Yusuf Tumer

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    @kram242 Another thing you can try is paint/stain the surface a single colour, mask it, route the pattern using a down cut spiral tool, paint the routed bits a different colour and then peel the masking off. I've never tried it but I have seen in done in a few places on the internet :)
     
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  15. Tweakie

    Tweakie OpenBuilds Team
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    Nice work Mark - take care, you can get hooked on V-Carving :)

    Tweakie.
     
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  16. Travis

    Travis New
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    Hey guys, I'm new here just signed up, but I really would like to build the OX. My only question is inquriey on the OX Plates, are they going to be an option soon? I was just wondering because I want to order everything and was about to, but I dont want to order everything and be short one part. Thx for your time, hope to hear back soon on my options :)
     
  17. asb_79

    asb_79 Well-Known
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    I can supply Waterjet cut Gantry plates and frame joiners. Check my thread in the forums.

    There are at least a couple of others supplying machined plates.
     
    Psychosaffa likes this.
  18. Robb

    Robb New
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    I just ordered some a couple days ago from ASB_79. Look forward to getting them!
     
  19. Robb

    Robb New
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    This is all new to me, I've built 3D printers, but not much of a woodworker in the past. What spindle would your recommend? I am planning on building a big Ox and will likely use CamBam as part of my toolchain. I'd like something that would be computer controlled on the spindle as I would be a little more comfortable. I did see the need for an emergency stop button and plan to put one in. Planning on having my teenage son and daughter help me with this.
     
  20. danstrider

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    Hi all,
    Finished building enough to get a first cut out of my Ox this morning. Toolpathing had the little nibs in the corners, so those are on me and not the machine.
    I have 750mm y-axis rails, which gives about 20.5" of tool travel. The x-axis is 650mm, giving about 18.5" of tool travel. Z-axis travel is around 3" and limited effectively by the height of the large plates and the distance between the spoilboard and the bottom of the z-axis.
    My one squawk is how the z-axis wheels tighten onto the z-axis rail. I'm not sure if it was my drilling of the hole locations or the distance between them on the drawing, but they need to be about a half mm closer together. This leads to some y-direction flex at the tip of the tool when loaded up. There is also a little torsional rotation in the pair of x-axis rails that I can see; maybe pinning these together will help.
    A few of the first projects will be making a real router mount, cutting all the plates (by machine this time rather than center-punching and drill pressing), and some form of dust collection.
    Thanks for the original Ox drawings and the detailed parts list. I bought stuff before folks had the plates available and before Openbuilds got steppers, rod, etc, so the parts are a mash-up of different suppliers.
    Dan
    2014-03-29 09.09.54.jpg 2014-03-28 19.52.34.jpg 2014-03-20 21.44.47.jpg 2014-03-19 21.28.34.jpg
     
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  21. Tweakie

    Tweakie OpenBuilds Team
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    Nice work Dan :thumbsup:

    Tweakie.
     
  22. Robert Hummel

    Robert Hummel Custom Builder
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    Great job!
    Look forward to your self upgrades :)
     
  23. Mark Carew

    Mark Carew OpenBuilds Team
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    Very nice build @danstrider way to go!:thumbsup: Love seeing another OX in the wild :)
    Thank you for posting your build pics I'm looking forward to your mods and I too agree with the stepper connections very nice and clean.
    Hope this machine brings you tons of enjoyment and inspires you to create great projects.
     
  24. Travis

    Travis New
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    Thx asb, I appreciate the info, but i actually am having them made by a friend.
     
  25. Travis

    Travis New
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    Also, just ordered all the parts for the OX build, I cant wait till all the parts come in and I can start making it :)
     
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  26. MartinTurner

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    Hi Guys.

    Just managed to purchase all the OX parts from RoboCutters in the UK and i can't wait to get started on the build.
    Just got a few questions - Hope you don't mind...

    Does anyone know if a variable speed router spindle would be a good idea, if so can anyone recommend one?
    Where do you get your router bits from ?
    What would be the best type of bit for cutting balsa wood ?

    Cheers
    Martin
     
  27. dddman

    dddman Journeyman
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    Would it be 40$ extra for Canada too? I can't imagine that it is the same price worldwide.

    Thank you!
     
  28. MartinTurner

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    Thanks Justin...
    Just managed to pick up one of these today...Variable Speed Makita Router for £99 and 2 bits - a two mm and a 1/8 from Craft Pro (Trend). I think it should do the job. It has a chip extractor attachment - Hope I can use it.

    What sort of quality cut do you get with 1/8 inch balsa? Ribs any good ?
    By the way - How did you cut your VSlot?

    Cheers Mate
    Martin
     
  29. dddman

    dddman Journeyman
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    I use a miter saw with a 40 teeth blade, nothing special. The first cut is a little scary but it's not worse than wood to cut (I suggest that you make your cut a little bit slower that you would for wood)
     
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  30. Mark Carew

    Mark Carew OpenBuilds Team
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