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OpenBuilds OX CNC Machine

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

OpenBuilds OX CNC Machine

OpenBuilds OX CNC Machine

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

OpenBuilds OX CNC Machine. A strong easy to build shop CNC router that can be sized to suit your needs. Many new features have been incorporated into the OX to make it a great router that is sure to inspire!

OX cnc machine openbuilds v-slot vslot router strong 2x4 shop
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  1. bobt

    bobt Well-Known
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    Guys - You can solve the problem just like industry does. Use a "flech" beam. Sandwich a 1/8" steel plate between the 2 80x20 parts and the whole thing will have the support of an equivalent steel beam. Carpenters do it all the time with 2 - 2x12 and a 1/4" steel plate. Bolted together tight. Not a big deal. And a lot cheaper.

    Please notice that I am still looking for the stupid box. Either it is so big I have never found it or so small that I have overlooked it.

    Bob
     
    #91 bobt, Jan 5, 2014
    silopolis, Robert Hummel, chris sluggies and 1 other person like this.
  2. Nick Lancaster

    Nick Lancaster New
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    That is what I am planning for my build(s) Bobt.

    But even that will not allow the openbuilds v-slot derived machines to cary that monster rouer motor. It would be just to **** heavy.
     
    #92 Nick Lancaster, Jan 5, 2014
  3. bobt

    bobt Well-Known
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    Why not with 17 wheels on the top and 17 on the bottom that should support 85 pounds of weight. I should not weight more than that. I just love the idea of that many wheels. It reminds me of a choo-choo train. You just have to look at it right. Wait we are talking routers here not trains. Sorry.

    Bob
     
    #93 bobt, Jan 5, 2014
  4. Mark Carew

    Mark Carew OpenBuilds Team
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    I like this idea of a C channel with the double extrusions. However in what experience I have of building cnc machines I would say he is right on the verge of needing an all steel machine for this size/weight.

    Capture.JPG


    In a case like this you may be able to use OpenRail mounted directly to a steel square tube.
    But even still delrin wheels, so you could switch to the steel V wheels and go with a steel rail
    like this http://www.mcmaster.com/#v-groove-tracks/=q4vgyp

    $(KGrHqJ,!r!FJTINR!rRBSctPIi6-!~~60_35.jpg DSC00193__75464.1379562242.400.310.JPG
     
    #94 Mark Carew, Jan 6, 2014
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  5. Nick Lancaster

    Nick Lancaster New
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    One reinforcement I can think of would be to fill the very large voids of the v-slot extrusion with Epoxy Granite. This is just like the synthetic granite counter tops, and also used in very large machines to stiffen them and give them more mass in certain locations.
     
    #95 Nick Lancaster, Jan 6, 2014
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  6. Mopar32985

    Mopar32985 Well-Known
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    Some good conversation going on here I was also looking the Bosh. Also Mark you have outdone yourself. I just got in the parts to build the OX minus the plates. Wow everything is so nice and seems to be very high quality. Even the packing is great. I am super pumped to get this build going.
     
    #96 Mopar32985, Jan 6, 2014
  7. Mark Carew

    Mark Carew OpenBuilds Team
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    Thanks @Mopar32985 I be sure to relay to the team, they will be happy!

    :) Indeed
     
    #97 Mark Carew, Jan 6, 2014
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  8. Nick Lancaster

    Nick Lancaster New
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    The added mass would be good for the base of the machine. Not for the gantry.
     
    #98 Nick Lancaster, Jan 6, 2014
    silopolis and (deleted member) like this.
  9. Mopar32985

    Mopar32985 Well-Known
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    So what cnc control software are you guys using. This will be my first cnc build. Im guessing Mach3. If not what others are out there
     
    #99 Mopar32985, Jan 6, 2014
  10. Nick Lancaster

    Nick Lancaster New
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    I am going to try LinuxCNC first, but mach3 is what I have on my big router.
     
    #100 Nick Lancaster, Jan 6, 2014
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  11. Mopar32985

    Mopar32985 Well-Known
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    I would love to get into linux but command prompt scares me haha
     
    #101 Mopar32985, Jan 6, 2014
  12. Nick Lancaster

    Nick Lancaster New
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    From what I can tell nearly no command prompt needed to run LinuxCNC.
     
    #102 Nick Lancaster, Jan 6, 2014
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  13. Nick Lancaster

    Nick Lancaster New
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    intial setup seems to require running a few commands form the command line. but day to day use is all GUI.
     
    #103 Nick Lancaster, Jan 6, 2014
  14. Mark Carew

    Mark Carew OpenBuilds Team
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    #104 Mark Carew, Jan 6, 2014
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  15. Nick Lancaster

    Nick Lancaster New
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    GUI is wonderful!
     
    #105 Nick Lancaster, Jan 6, 2014
  16. Mopar32985

    Mopar32985 Well-Known
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    #106 Mopar32985, Jan 6, 2014
  17. Mark Carew

    Mark Carew OpenBuilds Team
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    That's going to be great, I have not messed with the Pi yet so I am looking forward to this.
     
    #107 Mark Carew, Jan 6, 2014
  18. The Dude

    The Dude Well-Known
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    what about sandwiching wood between 2 20x80 beams? That should support 7 or 8 lbs. Like a 2x4 or something cheap.
     
    #108 The Dude, Jan 7, 2014
  19. Mark Carew

    Mark Carew OpenBuilds Team
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    Hey guys a little update just received a few parts I was waiting for, mainly GT3 pulleys. I want to try this beefy belt for the nema23 runs and see how well it works :). I am also working to source 5mm wide belt to elevate any track rubbing while using belt & pinion, well see how it works. I could always go with acme lead on the outside if it does not work out or rack and pinion, but I would much rather stick with the belt, its just so easy to setup and this is how I am going to complete this build for testing. I have also started to film Part 2 of the build now that I have the parts in house. So we will complete the belts install as well as the wiring and the software at that point we should be good to go. We are also working on the parts that are not on the list yet and will update as we complete them.
    Thanks for all the interest and excitement it really helps to fuel the fire :)
     
    #109 Mark Carew, Jan 7, 2014
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  20. Mopar32985

    Mopar32985 Well-Known
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    Sounds great Mark. Just received more parts today. Very excited to see part 2 of the video series. Also can't wait to hear more about the plates for the OX.
     
    #110 Mopar32985, Jan 10, 2014
  21. Mark Carew

    Mark Carew OpenBuilds Team
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    Thanks for your support @Mopar32985 We will do our best to keep updated. We have been busy making the videos so at this point we are on wiring then on to software and edit it all down to post :)
     
    #111 Mark Carew, Jan 10, 2014
  22. Bryant

    Bryant New
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    Mark,

    What is the z axis travel distance on the ox and routy?
     
    #112 Bryant, Jan 11, 2014
  23. Robert Hummel

    Robert Hummel Custom Builder
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    Man! the black OX looks sweet

    Im so building 1 for milling PCB and HDPE
    Time to bust out the 890KV Outrunner ;)
     
    #113 Robert Hummel, Jan 11, 2014
  24. Robert Hummel

    Robert Hummel Custom Builder
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    very cool idea
    I have bin looking into a way to display the g-code being sent to GRBL on to a LCD
    I was thinking there may be a way to in a sence snoop on the rx and tx lines and have a serial lcd disdply it.
    Im sure there is a way as its done with other serial displays, just a matter of looking in the right places lol
     
    #114 Robert Hummel, Jan 11, 2014
  25. Mark Carew

    Mark Carew OpenBuilds Team
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    if anyone can figure this out I am sure you can Robert :) I will keep my eyes open for anything that may help.
    I agree the Black OX does look cool!
     
    #115 Mark Carew, Jan 11, 2014
  26. Mark Carew

    Mark Carew OpenBuilds Team
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    Its about 2.75+" 70mm
     
    #116 Mark Carew, Jan 11, 2014
  27. The Dude

    The Dude Well-Known
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    What does an 890kV outrunner cost? Are the shafts pretty much all 8mm? Nevermind that's what we've been discussing all along, hehe. I think it would be fun to build a head for the OX that can do CNC, pick+place, 3D printing, and laser...
     
    #117 The Dude, Jan 11, 2014
    Last edited: Jan 11, 2014
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  28. Gopal

    Gopal Well-Known
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    I have been playing with Synthetos TinyG board which has the GRBL embedded and 4axes motor driver (mapped to 6axes). For the GUI, the tgFX is the basic software I use - keeping everything open! There is also a GRBL shield for the Arduino.
     
    #118 Gopal, Jan 13, 2014
  29. Mark Carew

    Mark Carew OpenBuilds Team
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    I have been wanting to try out the tinyG board looks really nice and I like that you can map the motors. At the moment I am using the GRBL shield /gcode controller (all open as well :) ) but I think we will find that we will need more power for these NEMA 23's we will see how it works out.
     
    #119 Mark Carew, Jan 13, 2014
  30. Gopal

    Gopal Well-Known
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    Indeed the motor current tops out at 3A on the TinyG which is a shame.
    The tgFX is also in the development stages and is a little buggy. I am looking at loading GRBL onto an UNO or the DUE and see if I can get the Gcode onto a SD card.
    The other possibility is to interface it to an iPAD which would be awsome.

    My interest (as a newly retired person -am 68yrs) is doing some 3D photo carving and the OX is perfect for that. (I may need a little more than 70mm Z travel but that's the beauty of your design - it can be modified. Thanks for all your contributions.
     
    #120 Gopal, Jan 13, 2014
    Robert Hummel likes this.
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