Dimensions Between Arcs or Circles

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By default, distances are measured to the center of an arc or circle. You can also:

You can also use Smart Dimension to create linear and ordinate dimensions to minimum, center, and maximum arc extents between arcs or between a line or a point and an arc.

To dimension between the edges of two arcs:

  1. Right-click the edge of the first arc, and select Smart Dimension.

  2. Press Shift, and then select the edge of the second arc.

  3. Apply the dimension between the edges, and then release Shift.

 

To change the way the distance is measured:

  1. Right-click the dimension between arcs, and select Properties.

  2. Set First arc condition and Second arc condition, then click OK.

First Arc

 

Second Arc

 

Center

 

 

 

Center

Min

Max

You can drag the extension lines to new attachment points in circles and arcs. The dimensions update automatically. In the following example, the extension line of the right circle is dragged from the Min attachment point to the Center.

Attachment at Min

Attachment dragged to Center

You can drag an arc radial dimension, and the dimension moves automatically between outside and inside.

Arc dimension inside

Arc dimension outside

  To dimension between concentric circles and display extension lines:

  1. In an open sketch, click Smart Dimension  (Dimensions/Relations toolbar) or Tools, Dimensions, Smart.

  2. Click one concentric circle, then click the second concentric circle.

  3. To display extension lines, right-click.

 

Extension lines

  1. Click to place the dimension.

To display extension lines after placing the dimension, click the Select tool, then right-click the dimension and select Display Options, Show extension lines.

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