0 as a development tool,using linear interpolation algorithm optimization to program,the precise output of a vector graphics,the control of the engraving precision and velocity,which achieves the precise control of stepper motor,and increased the machining accuracy of Laser Engraving Sys.

The algorithm simplified the complicated calculation in the usual course of B_spline curve interpolation, expedited the interpolation of B_spline curve, and has very important value in the real_time interpolation.

In order to achieve high speed and precision work,and on the basis of three times NURBS curve analyzing,NURBS curve interpolation algorithm principle is proposed.

This paper introduces the use of NURBS(Non- Uniform Rational B- Spline) in CNC(Computerized Numerical Control)curve interpolation.

Interpolation arithmetic based on image in laser incised curve;

The software realizes the method for not circle contour curve interpolation arithmetic proceeded the detailed description.

The process is made up of designing the overall arrangement and framework,choosing the movement mode of numerical control system,designing the mechanical system and control system,selecting,analyzing and realizing the process of 3D-engrave interpolation arithmetic.

An improved interpolation algorithm for high speed thread cutting;

Research and implementation of NURBS interpolation algorithm for adaptive feed speed;

The circle arc interpolation algorithm of eight octants;

Study on transition between sections of B-Spline curves used in direct interpolation algorithm;

Take the single-chip computer as control and calculating unit,the stepping motor as executing unit,the design applies the interpolation algorithm to achieve the accurate control on the position and trace of the object.

Point-to-point method is one of algorithms that are widely used in a line inteoplation, and the deviation calculation involved in thes method holds an important position in the course of interpolation.