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SUPER OX NEMA 34 1600 OZ Motors!!!

Discussion in 'CNC Mills/Routers' started by ANDRESCAMPA, Jan 10, 2017 at 1:43 AM.

  1. ANDRESCAMPA

    ANDRESCAMPA Well-Known
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  2. Julius

    Julius Veteran
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    May I ask why? You're probably going to twist the frame just from the motors
     
  3. Rick 2.0

    Rick 2.0 OpenBuilds Team
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    Far too much weight and power for a hobby grade system like the Ox.
     
  4. Moag

    Moag Master
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    o_O No problem with that... um! maybe reconsider.;)
    image.axd.jpg
     
  5. Mark Roberts

    Mark Roberts Well-Known
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    I agree with the above. Also, from your image it appears that you are setting up to use belts and pulleys to drive your X and Y axes. The mass of your system just won't tolerate B & Ps. You are going to stretch the belts a lot destroying your accuracy. I rec you consider rack and pinion or lead screws/ball screws to drive X and Y.

    I am using belts and pulleys on my 1500x1000mm/NEMA 23 system and they suck. I have no accuracy unless I barely crawl across the table. I'm redesigning to lead screws as soon as I can afford them.

    MR
     
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  6. Ronald van Arkel

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    In Mexico everything is possible ;). I like the idea of the wheels being able to lift up, good idea, but why not have 2 wheels down the whole time and only drop the frame when the machine is in use, or use a trolley to lift up the frame on one side when you need to move it?

    -Ronald
     
    #6 Ronald van Arkel, Jan 10, 2017 at 11:48 AM
    Last edited: Jan 10, 2017 at 4:42 PM
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  7. Florian Bauereisen

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    Total waste of money..
    Read, understand, design, calculate, reconsider... than start spending money and build

    I run my 140 kg mill on 2 NM servo motors and it will rip your arm of with ease.
    How much cutting force your 10 mm mill bit will generate?
    Either you have no clue about that or you plan to simply drag your bit through metal without even turning.

    Maybe try to copy some proven designs for a first build?

    flo
     
  8. ANDRESCAMPA

    ANDRESCAMPA Well-Known
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    This is a Shapeoko With 1600 oz 60x120 profile, I think that with 2 20x80 is good, but maybe with 3 20x80 in X axis no have problem, I calculated with 20x80 With Autodesk Inventor 2016, In some builds of CNC OX the profiles 20x80 in Y axis support 16KG (all X axis with Z axis, motors wheels and plates) and no exist problem, hahaha... Whatch the video!, this is the inspiration hahaha

     
  9. ANDRESCAMPA

    ANDRESCAMPA Well-Known
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    Yes baby, watch this... Like Roland says in Mexico all is posible hahaha, have nice day!, I'm Engenieer,
     
  10. ANDRESCAMPA

    ANDRESCAMPA Well-Known
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    hahaha yeah, is this:
     
  11. ANDRESCAMPA

    ANDRESCAMPA Well-Known
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    Really?...
     
  12. ANDRESCAMPA

    ANDRESCAMPA Well-Known
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    Check this: [​IMG]
     
  13. Ronald van Arkel

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    Well... there might be a new profile based on the C-Beam, up to 2.75 meters long, made in Mexico, 2.4x less deflection compared to the C-beam and a rack and pinion for NEMA23 motors (direct drive).

    By the way, the precision of the cut in video isn't great but must be okay for 2D woodworking. Gantry profile height looks like it's 120mm.

    -Ronald
     
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  14. Rick 2.0

    Rick 2.0 OpenBuilds Team
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    How much it will support is irrelevant. How much it flexes under load is what matters. And a 120mm deep section will have over 3 times the stiffness of an 80mm deep section.
     
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  15. ANDRESCAMPA

    ANDRESCAMPA Well-Known
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    Very nice, what could be the cost?
     
  16. Jestah

    Jestah Veteran
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    How can we stay in the loop as keen to get my hands on this when it is up for sale!
     
  17. ANDRESCAMPA

    ANDRESCAMPA Well-Known
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    Yes, is 60x120mm... I think in use 3Pcs 20x80 for X axis and supports for Y axis
     
  18. Julius

    Julius Veteran
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    Thats not a shapoko and those arent 1600 motors. Look how short they are. He's also using 8020 and linear rails, not plastic wheels....
     
  19. Ronald van Arkel

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    We're still working on it but about the price of the normal C-Beam, and the rack and pinion are also very affordable. We're thinking of selling it as a complete actuator.

    -Ronald
     
  20. Ronald van Arkel

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    Well, for now it's only sold in Mexico, where all will be produced, including a gantry plate made out of 1/4" mild steel. The pinion is brass, and the rack made out of UHMWPE. The rack and pinion are wide so don't worry about wearing out on not being able to take the force of the motor. When the prototype is out, we'll post but it will take some time as times are getting bad in Mexico (2.5 years crisis, Mexican peso is worth 60% of what it used to be back then). I've to contact DHL to see what countries can accept 10' / 3050mm shipments. Just a quick picture:

    C-Beam_machine_Lite_016_017.jpg

    Sure there will be shorter models as well, you don't want a gantry that long ;).

    -Ronald
     
  21. JustinTime

    JustinTime Master
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    Come on, people, this guy ANDRESCAMPA is a troll. He's yanking all of your chains. The guy in the video made a typo and wrote 1,600 instead of 160. Julius already mentioned it, those steppers are way way to small to be anything but 160oz/inch or so. When ANDRESCAMPA said he's an 'engineer' you should have realize that ANDRESCAMPA just misspelled 'troll'.
     
  22. ANDRESCAMPA

    ANDRESCAMPA Well-Known
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    Thank you fr your coment, but is true dear!, 1600 oz or 115Kg torque, but in this moment I go to 60x120 profiles, is a best idea that the system with V-Slots... Have nice day!, and Yeah, I'm Engineer ;)
     
  23. Ronald van Arkel

    Staff Member Resident Builder Builder

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    Torque, in Newton meters: 11.3, you can't say just kilograms, and yes, kilo isn't with the capital K.

    Don't fight about it, no need to call names.:blackeye:

    EDIT: E-mail send to Andres explaining culture differences.
     
    #23 Ronald van Arkel, Jan 11, 2017 at 2:25 PM
    Last edited: Jan 11, 2017 at 2:33 PM
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  24. Florian Bauereisen

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    Well my engineer,
    as i wrote:
    read, understand,...
    If you, like any engineer i know, would have read up this forum before posting you`d have noticed that i have linked that vid about a year ago.
    Apart from that the guy states clearly that he is using nema 23 motors, pls show them to me in 1600 oz,/in.
    BTW this machine is big but nothing special... you go with misumi profiles? or still using ox parts? did you now just eyeball your sices?
    I have chosen BoschRexroth cause you can calculate their deflection as they actually show these variables ....

    Btw, i have seen at least 200 professional cnc mill centers close up in my life and must admit i am really impressed by your expertise..
    I guess you really need no help from this forum..

    Have a good life

    flo
     

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