# STLsmith > AI text-to-STL generator for functional 3D-printable parts. Describe a part in plain words (English or Spanish) and download a parametric, print-ready STL with real M3-M5 screw clearances, 2mm minimum walls and support-free orientation where possible. Good for: hooks, brackets, spacers, washers, enclosures, knobs, mounts, trays, clamps, funnels, plant pots and other functional parts. Not for figurines or organic sculptures. Pricing: 3 free generations without an account, 5 more with a free account, $9 for 100 credits (never expire), $9/mo Pro (unlimited, fair use), $29 Workshop (500 credits + written licence to resell the generated files). - Forge (the app): https://stlsmith.com/forge - Part guides (32 types, EN): https://stlsmith.com/g/wall-hook etc. - Guias de piezas (ES): https://stlsmith.com/es/g/wall-hook etc. - Pricing: https://stlsmith.com/#pricing