G-code Tool Path Generator

Generates parameter driven G-code tool paths for CNC milling from stock geometry and tool data. The tool targets machinists, CAM engineers, and skilled hobbyists who need repeatable paths and predictable cycle times. It does not replace CAM software; it provides a deterministic path skeleton and ready-to-export G-code for common tasks such as pocketing and contouring. The engine accepts stock length, width, height, tool diameter, step over, depth per pass, feed rate, spindle speed, and safe heights, then computes a sequence of passes that respect user-defined limits and yields a compact, machine-ready program.
Conceptually, the tool separates path generation from post-processing: it creates planar XY patterns using options such as zigzag or trochoidal milling, then stacks passes along Z to the final depth. The core logic constrains toolpaths within stock boundaries, maintains safe approach and retreat moves, and emits G-code with standard G1 moves. It can estimate metrics such as total path length and rough cycle time by summing segment lengths divided by feed rate. The design favors transparency and testability, enabling straightforward validation in offline simulators or on machines that support ISO 6983 dialects.
Audience benefits include explicit parameterization of step over, depth per pass, and strategy, enabling quick comparisons of efficiency. Unique value lies in rapid scenario testing and exportable code that can be adapted to different machines or post-processors. Use cases cover pocketing, contouring on plates, and light roughing tasks in aluminum or plastics.