MacroHard Maker — CCF 3D Printing Path Planner

MacroHard Maker is a full-stack toolpath planning system for multi-axis continuous carbon fiber (CCF) FFF printers, aligning fiber deposition with principal stress directions for maximum structural performance.

Algorithm pipeline:

• FEA (scikit-fem) — linear elastic stress analysis, principal stress direction extraction
• SIMP topology optimization — print direction enumeration to minimize overhang area
• Geodesic path planning — stress-aligned surface routing on arbitrary geometries
• XYA motion planner — helical winding + infill layer G-code generation (16× speedup)
• Three.js visualization — real-time layer-by-layer preview in browser

Stack: Python · FastAPI · scikit-fem · Next.js 15 · Three.js · TypeScript · Tailwind