Remix STL lets you upload any printable STL - from Thingiverse, Printables, or your own files - then describe how you want it changed. SliceFoundry rebuilds an editable design from your mesh and applies your adjustments: resize, thicken walls, add mounting holes, restyle features, and more - no CAD required.
Unlike generators that start from a blank prompt, Remix STL starts from your file. Unlike mesh-only editors, you get a redesigned solid intended for FDM printing - then download STL (or STEP and other formats) when you’re happy with the result.
A great STL still needs good print settings. SliceFoundry also generates slicer profiles for your specific printer and filament, so you don't lose the AI advantage at the slicer step. If your first print struggles, the Fix My Print assistant diagnoses the failure and suggests corrections.
Open SliceFoundry and remix an STL
When you'd rather design a part precisely by hand than generate it from a prompt, Draftr is a desktop CAD application for Windows and macOS that combines AI with organic parametric CAD in an IDE-like workspace. It pairs a full parametric toolset - sketches, pads, pockets, fillets, chamfers, patterns, and threads - with natural-language AI commands, then exports print-ready STL files (and supports STEP-oriented CAD workflows). It's the natural next step once you outgrow prompt-based generation and want precise, editable, parametric models. Learn more at draftrcad.com.