DESIGN AND IMPLEMENTATION OF FPGA BASED G CODE COMPATIBLE CNC LATHE CONTROLLER

The conventional machining done in the past like lathe and milling operations were done manually. Accuracy and consistency between two produced parts vary tremendously due to human errors and limitations. With the advent of processor and controllers, came the Computerized Numerically Controlled (CNC) machines, having the advantage of using universally accepted G code machining language to machine the parts. It became really easy to produce the parts with same accuracies and consistency on different machines with the same G code being used. G codes are CNC machine assembly language having various Interpolation Instructions G codes, Tool Instruction T codes, Feed-rate Instruction F codes, Principal Axis Speed Instruction S codes and various Controlling and Input - Output Instructions M codes.