AutoCAD: SCALE Using a Reference Length

The 'SCALE' command reference option simplifies the process of scaling objects. Here's how to use it:

1. Start the 'SCALE' command ('SC' from acad.pgp)
2. Select the objects to scale
3. Specify the base point to scale from
4. At the 'Specify scale factor or [Copy/Reference]' prompt, type 'R <enter>'
5. Either enter a length to use as the base scale, or select two points to define the length. (TIP: Select the base point used to scale the object to simplify things)
6. Specify the new length to scale the selected object(s)

HINT: The 'SCALE' command also offers a 'Copy' open. Invoking this option instructs AutoCAD to scale a copy of the object(s).