Parametric 3D generators for makers. Designed in the browser, exported as STL or 3MF.
Mintables is a monorepo of browser-based, parametric design tools for 3D-printable parts. Each generator plugs into a shared OS-style desktop shell (wallpaper, dock, floating windows) so every tool gets the same sidebar, live 3D preview, and validated export.
Open Mintables and you land on a desktop, not a webpage. Apps live in the dock at the bottom. System shortcuts (README, license, GitHub, sponsor) sit on the right edge like files. Folders for Downloads and Presets appear automatically once you've created some.
Every generator opens as a window with macOS-style traffic lights: close, minimize (with a genie effect toward its dock tile), and a maximize / restore toggle.
Press Cmd-K (or Ctrl-K) anywhere to open Spotlight: a global command palette that fuzzy-searches across generators, presets, and downloads in one ranked list. With no query, it doubles as a recent-history surface, showing every generator plus the five most recent presets and downloads.
Arrow keys to navigate, Enter to open the highlighted result, Escape to dismiss.
The desktop stays empty until you create state. Export your first part and a Downloads folder appears on the right edge. Save your first preset and a Presets folder appears next to it. Open either and you get a Finder-style window with a view toggle, sort, search, multi-select (Shift / Cmd-click), F2 to rename, and a right-click context menu.
Every export is recorded with generator id, filename, format, the exact config you used, and a timestamp. The binary file itself isn't stored: re-running the export on demand is cheap and means presets always reflect today's geometry code, not yesterday's.
Save any configuration with a name and it shows up here, across every generator, sorted newest-first. Double-click to open the configuration back in its generator with one click.
Both folders share the same FileExplorer component and a left Favorites rail that lets you jump between Desktop, Downloads, and Presets without going back to the hub.
Round, square, and rectangular tubes with flat / miter / chamfer / saddle end cuts, press-fit flares with optional lead-in chamfer, stop shoulder, and anti-rotation key, and a clamshell split for printing long round tubes as two interlocking halves.
Press-fit connectors that bridge any two tubes. Round / square / rectangular ends in any combination, socket (wraps the tube) or plug (slides inside) fittings, straight couplings or up to 90° elbows with auto-calculated bend radius. Ghost geometry shows where the mating tubes go.
Flat printable slabs: thickness × width × height with optional rounded corners, taper, and a labeled pocket aligned top / center / bottom. The honest building block when you just need a stiff rectangle.
Slip-on floor caps for chair, table, and stool legs. Round / square / rectangular / oval cross-sections sized to a measured leg, with a separate fit clearance, an optional inner taper for a wedge fit, and an optional felt-pad recess in the bottom face.
- Real-time 3D preview: professional CAD-style metallic rendering, dimension indicators, view presets (Iso / Front / Top / Right), orbit controls, ghost geometry where relevant
- Validated export: degenerate-triangle check before download; clear error banner when dimensions can't print
- Share links: every generator's full configuration encodes into the URL
- Local presets: save and reload configurations from your browser
- STL and 3MF with millimeter units preserved in 3MF
apps/studio/ Next.js shell. Single app, /generators/<id> routes
packages/shared/ @mintables/shared. Generator contract + app shell
packages/generators/ One package per generator (tubes, adapters, dividers, …)
See CLAUDE.md for the full architecture, the generator contract, and how to add a new generator.
git clone https://github.com/saschb2b/mintables.git
cd mintables
pnpm install
pnpm devOpen http://localhost:3000, pick a generator from the dock, or jump straight to /generators/tubes, /generators/adapters, or /generators/dividers.
- Next.js 16 + React 19 + TypeScript (App Router, Turbopack)
- Material UI v7 for UI components and the dark theme
- React Three Fiber + Three.js for 3D rendering
- Turborepo + pnpm workspaces for monorepo orchestration
- Vitest for per-package unit tests (mesh generation, validation, decode round-trips)
pnpm install
pnpm dev # studio dev server
pnpm test # vitest across all packages
pnpm typecheck # tsc across all packages
pnpm lint
pnpm build # production buildMIT. See LICENSE.