23rd Jan 2013.

Ruler 3dz.

Marks on the ruler are 5 feet spacing and correct to EAW scale 
Each side is 160 feet, so you can check models up to 320 feet in size.

To use, you'll need the latest 1.28F 3dz Studio. Load the ruler and your model with the: 

Model/Select one or a group of files to be loaded. 

Hope you find ithis of help.

Over and Out!

Col. Gibbon.