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    Valued Contributor
    Vitornis
    Posts: 93
    Registered: ‎12-01-2010

    Dimensioning a Curve

    234 Views, 6 Replies
    05-14-2012 07:54 AM

    I trying to figure out a way of dimensioning a curve for fabrication in inventor.  Anyone have any suggestions?  The way i have done this before was to provide a chart of X and Y dimensions of points along the curve. See the attached drawing.

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    Valued Contributor
    schae235
    Posts: 59
    Registered: ‎05-24-2011

    Re: Dimensioning a Curve

    05-14-2012 08:12 AM in reply to: Vitornis

    What version on Inventor are you using, I know in Inventor 2013 there is a feature for this.

    INV 2012 SP1
    Windows 7 64 Bit
    ATI FirePro V5800
    14.0 GB RAM
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    Valued Contributor
    Vitornis
    Posts: 93
    Registered: ‎12-01-2010

    Re: Dimensioning a Curve

    05-14-2012 08:21 AM in reply to: Vitornis
    Oooo we are still on 2011. Been too busy the last couple of years to spend the time to upgrade. Might have to this fall when we might have some down time.
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    Active Contributor
    Posts: 48
    Registered: ‎09-29-2008

    Re: Dimensioning a Curve

    05-14-2012 08:22 AM in reply to: Vitornis

    why not just dimension the center points of the arcs, the radius' of the arcs, and give some overall dimensions.

    giving a few reference x-y points could be helpful if someone is laying it out by hand. 

    M6400, FX3700M, 12GB, SSD
    Win 7 64
    Inventor 2013
    Please use plain text.
    Valued Contributor
    Vitornis
    Posts: 93
    Registered: ‎12-01-2010

    Re: Dimensioning a Curve

    05-14-2012 08:25 AM in reply to: hosford
    Because those are not true arcs regardless if inventor thinks they are when it gives you a dimension of the radius. Try sketching over it and draw a arc you will see it doesn't match.
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    Active Contributor
    Posts: 48
    Registered: ‎09-29-2008

    Re: Dimensioning a Curve

    05-14-2012 09:31 AM in reply to: Vitornis

    interesting, any chance you could supply the model?

    how did you generate the curves in the model?

     

    M6400, FX3700M, 12GB, SSD
    Win 7 64
    Inventor 2013
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    *Expert Elite*
    PaulMunford
    Posts: 658
    Registered: ‎11-13-2006

    Re: Dimensioning a Curve

    05-15-2012 03:18 AM in reply to: hosford

    For true arcs you could define the X,Y coordinates of the center points, the radii and the start and end coordinates of the chain.

     

    You could alternatively define the start and end X,Y coordinates of the start and end points of each arc, with the Radii, this should be enough for someone to set out.

     

    Finally you could define the start X,Y start and end point of the chain with with chord length and radii.

     

    If the arcs, aren't arcs but Ellipses you will need to define both center points.

     

    If the arcs aren't arcs, but splines then you would be much better off providing a full size paper plotted template, or just send the profile to CNC.

     

    It all really depends on who is going to use the information - in your case I would phone them up and ask!

     

    I hope that this is helpful,

     

    Paul

    The CAD Setter Out Blog
    @CadSetterOut
     
    Please use the Mark Solutions! Accept as Solution or Give Kudos! Kudos functions - Thank you!
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