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Development of a G-Code Free, STEP-Compliant CNC Lathe

[+] Author Affiliations
Xun W. Xu

University of Auckland

Jun Wang

Shenyang Jianzhu University

Paper No. IMECE2004-60346, pp. 75-82; 8 pages
  • ASME 2004 International Mechanical Engineering Congress and Exposition
  • Computers and Information in Engineering
  • Anaheim, California, USA, November 13 – 19, 2004
  • Conference Sponsors: Computers and Information in Engineering Division
  • ISBN: 0-7918-4704-7 | eISBN: 0-7918-4178-2, 0-7918-4179-0, 0-7918-4180-4
  • Copyright © 2004 by ASME


The paper describes a STEP-compliant CNC lathe that demonstrated a G-Code free machining scenario. This research work was conducted in two parts. The first involved retrofitting an existing CNC lathe with a more open platform control system — Compumotor Motion Control system, which is capable of interfacing with other CAPP/CAM programs through languages such as Visual Basic, Visual C++ and Delphi. The control system is programmable using its own motion control language — 6K Motion Control language. A library of 6K functions has been developed to cater for different turning operations. The second part of the research is the development of a “STEPcNC Converter,” which can understand and process STEP-NC codes, and interface with the CNC controller through an interface. It makes use of STEP-NC information such as “Workplan,” “Workingstep,” machining strategy, machining features and cutting tools that is present in a STEP-NC file. The Application Interpreted Model (AIM) of STEP-NC has been used.

Copyright © 2004 by ASME



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