how much is too much?

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Thread: how much is too much?

  1. #1
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    Default how much is too much?

    Hi.

    Newbie.

    I cut a test square 400mm x 400mm (~15 3/4") and my diagonals are just under 1mm different from the calculated diagonal of 565.69mm ie 0.17% So the X and Y axes aren't perpendicular

    I am prepared to have a go at making and adjustment to the X axis carriage, but the purpose of the post is to ask what sort of value I should be aiming at.

    The above result seems unacceptable to me but I'm inexperienced.

    What's the acceptable ball park level of accuracy?

    Thanks,
    Rob.

    machine is SD 9060 2.2kw spindle



  2. #2
    Registered KH0UJ's Avatar
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    Default Re: how much is too much?

    On my opinion it should be perfect, should be 1=1, if it`s not perpendicular then I think you need to re align the machine itself, put washers or loosen bolts and hammer it with rubber mallet then tighten again, any method to make it perfect sir. usually CNC machines gets offsets or misaligned during shipping and handling (rough sea vibrations on the units itself) one of our machines got warped when they delivered it to the shop. a simple loosen tighten resolves the misalignment



  3. #3
    Community Moderator ger21's Avatar
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    Default Re: how much is too much?

    What's the acceptable ball park level of accuracy?
    That's a question that only you can answer.
    For some projects, you may not even notice any error.
    For other projects, out of square parts may be unusable.

    Gerry

    UCCNC 2017 Screenset
    http://www.thecncwoodworker.com/2017.html

    Mach3 2010 Screenset
    http://www.thecncwoodworker.com/2010.html

    JointCAM - CNC Dovetails & Box Joints
    http://www.g-forcecnc.com/jointcam.html

    (Note: The opinions expressed in this post are my own and are not necessarily those of CNCzone and its management)


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how much is too much?
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