STL to G-code Converter

This tool converts STL geometry into executable G-code and basic toolpaths for additive and subtractive workflows. It ingests an STL file, applies unit normalization, and uses a configurable machine profile to generate a ready-to-run code sequence. The process supports essential parameters such as layer height, nozzle or bit size, feed rates, and path strategies, with optional presets for common machines. The underlying logic emphasizes correctness and portability, producing G-code compatible with popular firmware like Marlin or GRBL. Users can export text-based G-code files suitable for direct transfer to printers or CNC controllers, and receive estimates for print time and material use. Conceptually, the tool models the model as a series of planar layers, computes per-layer extrusion or feed requirements, and translates those into motion commands, while ensuring safe defaults when inputs are incomplete. This solution targets independent makers, educators, startups, and small workshops seeking a lightweight, install-free option to generate executable code from STL models. Its unique value lies in simplicity and speed: it provides an accessible bridge between 3D geometry and machine instructions without the complexity of full slicers or CAM suites. Core features include STL parsing, unit handling, standardized output formatting, optional start/end blocks, and a basic visualization of toolpaths to aid validation. Typical use cases include quick prototyping of a bracket, a low-volume enclosure, or a small CNC pocket, where rapid iteration is more valuable than advanced multi-material capabilities. The tool emphasizes reliability over optimization; it does not repair geometry, nor does it generate multi-material toolpaths. It assumes printable STL input and generates universal G-code aimed at common hardware, with outputs suitable for review, tweaking, or direct execution.