New Machine Build D.I.Y C.N.C router aluminum extrusions ( All Suggestions Are welcome )


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Thread: D.I.Y C.N.C router aluminum extrusions ( All Suggestions Are welcome )

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    Default D.I.Y C.N.C router aluminum extrusions ( All Suggestions Are welcome )

    Hi every one
    I plane to build my second D.I.Y C.N.C
    the Machine I Plane to Work With MDF LEXSAN .... etc and I hope It will by Strong enough to work with aluminum
    Machine Size 1300X800X150mm
    for aluminum extrusions Size 60X60
    Motor X , Y Nema 34
    For Z Not Select yet
    ball screw RM1605
    Rail
    X : railsSBR16 With nut housing SBR16LUU
    Y : railsSBR16 With nut housing SBR16uu
    Z Not Select yet
    D.I.Y C.N.C router  aluminum extrusions ( All Suggestions Are welcome  )-4-jpgD.I.Y C.N.C router  aluminum extrusions ( All Suggestions Are welcome  )-1-jpg

    D.I.Y C.N.C router  aluminum extrusions ( All Suggestions Are welcome  )-3-jpg

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    All Suggestions Are welcome

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    Default Re: D.I.Y C.N.C router aluminum extrusions ( All Suggestions Are welcome )

    photo for aluminum extrusions
    D.I.Y C.N.C router  aluminum extrusions ( All Suggestions Are welcome  )-2017-06-13-13-55-22-jpg



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    Default Re: D.I.Y C.N.C router aluminum extrusions ( All Suggestions Are welcome )

    Once you start talking about doing Aluminum you need to think far more robust machine design. Id discourage round rails and Aluminum extrusions.

    If you insist on extrusions id suggest the largest you can find for the gantry. Ideally the gantry would be a large square steel beam. In either case you need to look closely at the vertical supports for the gantry beam, flat playes dont cut it unless they are very thick.

    A hybrid approach would be a steel gantry beam assembly riding on top of an Aluminum framed machine. This is a workable solution that addresses the common weak point in a routers design. That weak point is often the gantry / z axis.

    Note that much of the above depends upon your expectations. If doing aluminum means engraving to you then you might get by with a low end approach. However if your idea of doing Aluminum is similar to other sheet goods id seriousl lean to a more robust machine.



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    Default Re: D.I.Y C.N.C router aluminum extrusions ( All Suggestions Are welcome )

    Quote Originally Posted by wizard View Post
    Once you start talking about doing Aluminum you need to think far more robust machine design. Id discourage round rails and Aluminum extrusions.


    If you insist on extrusions id suggest the largest you can find for the gantry. Ideally the gantry would be a large square steel beam. In either case you need to look closely at the vertical supports for the gantry beam, flat playes dont cut it unless they are very thick.

    A hybrid approach would be a steel gantry beam assembly riding on top of an Aluminum framed machine. This is a workable solution that addresses the common weak point in a routers design. That weak point is often the gantry / z axis.

    Note that much of the above depends upon your expectations. If doing aluminum means engraving to you then you might get by with a low end approach. However if your idea of doing Aluminum is similar to other sheet goods id seriousl lean to a more robust machine.
    Thanks for your advise
    1- the machine i'm already start work with aluminum extrusions
    2- I'm still thinking about z axis all axis are first I put round rails in my design then I read alot of review about round rails and most people was not too much happy with it so I decided to use Linear Rail Guide entil now it's OK
    then I read If I want the Z axis rigid There is Double Nut Ball Screw then I now If I put Bigger Size of Ball Screw it will better so I still Confused About The Z axis



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    Default Re: D.I.Y C.N.C router aluminum extrusions ( All Suggestions Are welcome )

    Some Update
    The Sheet Metal For Y axes Just for Test Because I Still Waiting for SBR16LUU
    D.I.Y C.N.C router  aluminum extrusions ( All Suggestions Are welcome  )-2017-06-13-12-36-39-jpg
    D.I.Y C.N.C router  aluminum extrusions ( All Suggestions Are welcome  )-2017-06-13-12-36-33-jpg
    D.I.Y C.N.C router  aluminum extrusions ( All Suggestions Are welcome  )-2017-06-13-12-36-05-jpg
    D.I.Y C.N.C router  aluminum extrusions ( All Suggestions Are welcome  )-2017-06-13-12-37-10-jpg
    D.I.Y C.N.C router  aluminum extrusions ( All Suggestions Are welcome  )-2017-06-13-12-37-26-jpg
    D.I.Y C.N.C router  aluminum extrusions ( All Suggestions Are welcome  )-2017-06-13-12-36-18-jpg
    D.I.Y C.N.C router  aluminum extrusions ( All Suggestions Are welcome  )-2017-06-14-13-29-36-jpg



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    Default Re: D.I.Y C.N.C router aluminum extrusions ( All Suggestions Are welcome )

    Quote Originally Posted by yamanmax View Post
    Thanks for your advise
    1- the machine i'm already start work with aluminum extrusions
    OK
    2- I'm still thinking about z axis all axis are first I put round rails in my design then I read alot of review about round rails and most people was not too much happy with it so I decided to use Linear Rail Guide entil now it's OK
    I'm not wedded to the use of profile rials, round rails can be useful in a proper design and if the builder understands their limitations. At some point though it just makes sense to use the more robust solution which Is profile rails.

    What you need to be careful about is that the rails are long enough to meet you work area requirements. Your design seems to constrain the saddle movements which might be a problem. Basically you need enough travel to cover your expected work area with the largest cutter you intend to use. That means you need to account for the saddle widths. Right now your Y axis seems to be especially constrained.

    then I read If I want the Z axis rigid There is Double Nut Ball Screw then I now If I put Bigger Size of Ball Screw it will better so I still Confused About The Z axis
    Double nuts are one way to eliminate backlash in a mechanical system. Generally you want to get as near to zero backlash as possible. On the other hand larger diameter lead screws address stiffness needs which is another matter altogether.



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