AP 238 -- STEP-NC Integrated CNC

Sample Programs

Creates a product with all of the STEP backbone entities needed to get started with geometry.

Creates a round hole feature with the parametric description (circular profile swept along a linear path) and a flat bottom condition.

TOLERANCE

Reads an existing data file with geometry for a block and hole, then applies dimensions, datums, and tolerances to the faces.

ST-Machine

ST-Machine makes STEP-NC even easier with high-level DLLs for creating and moving machining data to/from CAM systems and APT-CL based processes. On the CNC, STEP-NC loader, monitor, and interpreter components work with many types of controls, plus data checkers and simulators.

Other Files

Use example working sets below if you generate your own C++ classes with the EXPRESS compiler. Contains recommended complex instance combinations (AND/ORs).

integrated_cnc_schema.ws: All entities and complex instances (CC4)
ap238_cc1.ws: Only entities and complex instances used by CC1.
ap238_cc2.ws: Only entities and complex instances used by CC2.
ap238_cc3.ws: Only entities and complex instances used by CC3.
integrated_cnc_schema.nam: Short name abbreviations already installed in ST-Runtime.

Overview

EXPRESS source and associated files for STEP Part 238: Application Protocol for Computerized Numerical Controllers, commonly referred to as STEP-NC. The standard was published in 2007 as ISO 10303-238:2007(E).

AP 238 schema in a browsable form, as well as the EXPRESS source listing.

The full standard is available on the ISO web site as well as through national standards bodies.Consult the STEP-NC Technical Resources Page for additional information.

Programming Libraries

For C++ programming, the ap238lib class library is pre-installed and provides AP238-specific classes for use with the ST-Developer ROSE programming library

Include File: stp_schema.h
Include Path: $(ROSE_INCLUDE)/ap238lib
Library Path: $(ROSE_LIB) with ap238lib.lib or -lap238lib
Class List
How to use

For Java programming, the ap238lib Jar file is pre-installed and provides AP238-specific classes for use with the ST-Developer Java programming library

Import: com.steptools.schemas.integrated_cnc_schema
Jar File: $(ROSE_LIB)/lib/java/ap238lib.jar
Class List
How to use