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CAD tip CAD tip # 4836:

Question CAD 
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Q - question

How to dimension the arc length in Inventor?

A - answer For the arc length dimension in a sketch use a computed parameter.

  1. Dimension the radius and the included angle of your arc.
  2. Run the Parameters function and rename both parameters to "Radius" and "Angle".
  3. Use the Add button to add a new parameter, name it "Length".
  4. In the Expression field to enter the value of this parameter as:
    Radius * Angle * PI / 180 deg
  5. In your dimension you can now use a new parameter - "Length" - which will reflect the current arc length.
100% *  CAD 
30.1.2006    14810x  
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applies to: Inventor ·

See also:
Tip 10682:Automatic classification of drawing objects by their properties.
Tip 10138:Dimensioning a curve length or distance between two points on a curve.
Tip 9855:Overview of postprocessors available in the CAM software Inventor HSM 2015.
Tip 9224:How to display arrow grips at arc endpoints?
Tip 8404:How to simplify a complex polyline (reduce number of vertices)?

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