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Need advice - 800X1500 (2x4 cutting area)

Discussion in 'CNC Mills/Routers' started by Dave Landry, Jun 8, 2015.

  1. Dave Landry

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    Good morning

    I have ordered all the parts I need to build an OX (inspired by OOZNEST) except for my V-Slot Linear rail.

    I would like to have a 2'X4' cutting area so my calculation tells me I need to build a 800mm X 1500mm

    Is this realistic? What are some of the caveats of building an OX of this size? Any advice people can share?

    I plan to cut mostly plywood stock, plastics but would like to be able to cut Aluminium as well - but the machine is being build for mostly sheet materials.

    Another thing I would like to eventually do is mount a laser (yes... I said a frickin laser)

    Feedback welcome

    PS - I ordered my gear from Dany @ fuzztech, plates from Chris and Clockwerx
     
  2. dddman

    dddman Master
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    It should be fine to cut all of the above. Make sure that your X axis is the short one to reduce torsion at the minumum. Also, you may want to be able to adjust your eccentric spacers over time, I may suggest that you put them on the top of the Y axis plate (you'll find it very difficult to adjust from the bottom). (edit: sorry for that, your plates wont be designed to have the eccentric spacers on the top). You may want to add 2 idler pulleys on your X axis to add some belt contact on the GT2 pulley (only one in the picture, but you'll want a second one on the other side too) .

    [​IMG]
     
    #2 dddman, Jun 8, 2015
    Last edited: Jun 8, 2015
    Dave Landry likes this.
  3. Dave Landry

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    Hey Dany

    you recommend this for all the axis (X and Y)? If I understand - you replaced the lower Stepper bolts with a longer bolt and a idler wheels, right?

    Why would my setup not allow me to have my eccentrics on top?

    Thanks

    Dave
     
  4. dddman

    dddman Master
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    Just for the X axis (your order will be shipped later today if you want me to add two idlers ;) ) it won't work with the Y axis as the motors are lower. If you want the eccentrics on top, you'll have to drill bigger holes on your plates.
     
    Dave Landry likes this.
  5. Dave Landry

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    Thanks Dany
     
  6. Joe Santarsiero

    Joe Santarsiero OB addict
    Staff Member Moderator Builder

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    Why are we putting eccentrics on top these days?
     
  7. dddman

    dddman Master
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    Try to adjust them from under the CNC ;)
     
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