- Open the 2D sheet you want to use. If your project contains several sheets or models, use the Sheet Browser to select a 2D sheet.
- Click View tab
Workspace panel
Windows drop down
Set Scale by Measure
New Measure.
- On the 2D sheet, trace a line of geometry. Choose a line that you know the length of.
- In the Enter Value dialog, type the known length and measurement unit, then click OK.
The average scale appears in the Set Scale by Measurement window. If necessary, repeat to trace several lines for a more accurate scale.
- Press Delete or right-click a row
Delete to delete a scale record.