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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    16703×  
applies to: Inventor ·

See also:
Tip 12479:PkLength - export line lenghts to Excel.
Tip 12392:Export unfolds of sheetmetal parts to DXF - parameters for iLogic and VBA
Tip 12350:PkArea - acreage of closed areas from DWG to Excel.
Tip 11989:How to dimension an ellipse in AutoCAD?
Tip 11647:How to display dynamic dimensions on grip editing?

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