Exporting CALS-Compliant IGES Files

CALS is an acronym for the United States Department of Defense Computer-aided Acquisition and Logistic Support initiative. The goal of CALS is to integrate and standardize the digital data received from Department of Defense suppliers. The CALS IGES specification is a series of different classes of IGES files. Each class is a subset of the IGES entity types, as specified in MIL-D-28000A.

CALS Class	Settings File	For the Exchange of
I. 2D Technical Illustration	"cals1.sfo"	2D figures and illustrations normally found in technical publications
II. 3D Engineering Drawings	"cals2.sfo"	3D engineering drawings (export settings are very close to default IGES export settings)