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Sheet metal three-point arcs

 

Use the Sheet Metal Three-PointClosed ArcClosed tool to sketch an arc when you know its chord angle and the location of its start and end points.

Lines, splines, and arcs are extruded to the thickness of a sheet metal wall when they form a closed profile. You can change the default wall thickness in the sheet metal properties.

 

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In addition, you can choose the ProfileClosed option to create a wall that is perpendicular to the sketch plane as you sketch.

To draw a three-point arc

  1. Click on the Sheet Metal tab.

  2. Click Three-Point Arc in the Sketch group.

  3. (Optional) Click the Profile option if you want to create walls as you sketch.

  4. Click to set the start point of the arc.
  5. If the start point is on another line, arc, or spline, then the arc will initially be drawn tangent to that line, arc, or spline.

    You can dimension the point relative to other sketch objects.

  6. Click to set the end point of the arc.

  7. Click to set the arc's radius.

    You can dimension the chord angle or radius.

    The arc will snap to tangent objects.

Options

The following Sheet Metal sketch options allow you to choose between sketching a flat wall or a wall that is perpendicular to the sketch plane:

 

    Auto

When sketching an open profile (series of lines), a perpendicular wall is created. When sketching a closed profile (square, circle, etc.), a flat wall is created.

    Flat

Any closed sketch creates a flat wall.

    Profile

When sketching an open profile (series of lines), a perpendicular wall is created.

  Automatic

Use the starting location of the sketch to determine whether the inside or the outside of the sheet is maintained when bending.

   Inside

Maintains the length of the sheet's inside surface when bending.

   Outside

Maintains the length of the sheet's outside surface when bending.

 

The following options are available for every sketch tool:


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