Dimensioning Arcs
Creo Elements/Direct Drafting can measure the length or angle of the major or minor arc. When dimensioning arcs singly, you determine which measurement is used by selecting either the start or end point of the arc first. When dimensioning multiple arcs at once, the length or angle of the major arc will be measured Creo Elements/Direct Drafting measures arcs in a counterclockwise direction. Dimensioning the length or angle between two arcs is also possible, but only for arcs with the same radius and center.
You can locate the dimension either inside or outside the arc.
To dimension an arc:
1. Press DIMENSION 1.
2. Pick ARC
3. Pick Length or Angle to dimension the length or the angle.
4. Select MANUAL or AUTO placement.
5. Select the arc features to be dimensioned. You can either:
◦ Identify the first and second end points on individual arcs. The order in which you select the endpoints determines whether the major or minor arc is dimensioned.
◦ Identify one or more arc elements with SELECT or by enclosing them in a box. The major arc will be dimensioned for all selected arcs.
6. If MANUAL placement was selected, indicate the desired location for the dimension text(s), using the dimension trace for guidance.
7. Press END to end this command.
The following figure shows two possible results of length and angle dimensions obtained using the ARC command. Each arc end point is marked in the order in which it has been identified.
Dimensioning Arcs — Two Results
