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IndustryArena Forum > CAM Software > Uncategorised CAM Discussion > CAD HELP: 4 lines to 1 box/object how to?
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  1. #1
    Join Date
    Feb 2004
    Posts
    15

    CAD HELP: 4 lines to 1 box/object how to?

    I'm using a simple cad program called delta cad. Whenever I draw something each line is an individual object. For example if I draw a box it is 4 lines, or 4 objects. Not 1 object. This is causing me big problems with my routout cnc program as it does not understand inside/outside offset on a line. A line does not have an inside/outside. But a box (or whatever shape) does. I have autocad 2000 (just don't know it very well). Does AutoCad have a method to put lines into a single object?

    Any ideas for me?

    Thanks,
    Tom

  2. #2
    Join Date
    Mar 2003
    Posts
    35538
    In AutoCAD, use the recangle command or draw a box with the polyline command.
    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
    Join Date
    Feb 2004
    Posts
    15
    I have a whole bunch of drawings I need to fix. It is a lot more than just simple boxes. It would be a huge task to redraw them

    tom

  4. #4
    Join Date
    Feb 2006
    Posts
    313
    Look in the autocad help file under polyline, it'll tell you specifically how to join single entities in the version you have. Just chain the elements into a single entity.



    Tiger

  5. #5
    Join Date
    Feb 2004
    Posts
    15
    says you can do it.... don't say how:

    "You can join a line, arc, or other polyline to an open polyline if their ends touch. If a line crosses the end of a polyline in a T shape, the objects can't be joined. If two lines meet a polyline in a Y shape, AutoCAD selects one of the lines and joins it to the polyline. Joining also causes an implicit decurve, with AutoCAD discarding the spline information of the original polyline and any polylines being joined to it. Once the joining is completed, you can fit a new spline to the resulting polyline."

    now if it just said how.....

  6. #6
    Join Date
    Feb 2004
    Posts
    15
    I figured it out.... have to use the command line click the edit poly line button>select a line>yes convert to polyline>select the rest of the lines>enter and done Wheew!

  7. #7
    Join Date
    Mar 2003
    Posts
    35538
    Sorry I couldn't get back to you sooner. Use the PEDIT command, which you already figured out.
    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)

  8. #8
    Join Date
    Feb 2006
    Posts
    2
    You can also try the BPOLY command. Just pick a point within the enity you want to bound, and as long as their are no open line segments this will create 1 enity

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