Stand-Alone Interactive Computer Systems for NC Tape Preparation

Abstract

The small desk-top graphic display computer has many advantages over alternative systems which employ a main-frame, bureau, or mini-computer for N.C. tape preparation and verification. It also has certain disadvantages, and for optimum use the method in which the computer is programmed is of prime importance. The paper describes an approach whereby a library of inter-active program modules is established and modules are custom-assembled into a main program to suit particular needs. Examples are presented of custom-assembled programs for the production and verification of control tapes for turning, milling and sheet metal working. The system developed was based on a Tektronix 4051 Graphic Display Computer, suitably interfaced with various peripheral devices, Details of the system and its relative merits are discussed in detail.