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  1. #1
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    Question really basic question- scaling 3D shape?

    I have a question that is probably quite basic to anyone who has CNC experience: if I have a program for a three-dimensional shape (say, a Volkswagen Bug), can I mill out a large model a foot long and a small one an inch long?

    I'm interested in creating some models for an N-scale model railroad. At 1:160th scale, details are easier to check if I create a larger protype first. Also I may want to make the same model in 1/87th scale.

    So, can 'average' hobby-grade CNC software scale a complex shape up or down?

    Thank you.

  2. #2
    Community Moderator ger21's Avatar
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    Depending on the format, you should be able to scale it in either a CAD or CAM program.
    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)

  3. #3
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    Thank you.

  4. #4
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    With just the CNC code, it will be more difficult. If you have the source 3D model, and created the code in CAM, then it is pretty easy.

  5. #5
    Community Moderator ger21's Avatar
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    Oops, I guess I misread that. If all you have is the g-code, it is possible to scale it with a control like Mach3, but you won't get as good of a result as if you scale it in CAD or CAM.
    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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