rackcut

Web-based Eurorack blank panel SVG generator for laser cutting.
Add panels by HP and format, choose generative engrave patterns, preview the cut sheet live, and download the SVG.

Live Site · Buy Me a Coffee

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Features

• 3U, 1U Intellijel, and 1U Pulp Logic formats with slot or circle mounting holes
• 21 generative engrave patterns — Spirograph, Lissajous, Voronoi, Lorenz Attractor, Chladni Figures, Flow Field, Sacred Geometry, and more
• ModularGrid import — paste a rack URL to auto-calculate needed blanks
• Auto-splitting — large blanks split into practical sizes (equal or fill-max)
• Material preview — see how panels look on MDF, birch plywood, walnut, black acrylic, aluminum, or as raw laser SVG
• Reproducible patterns — each panel has a seed number for exact reproduction
• Per-panel customization — edit HP, format, hole style, pattern, and seed inline

Usage

Visit the live site: ogabrielluiz.github.io/rackcut

1. Set panel HP, format, and hole style, then click Add
2. Configure sheet settings (gap, max HP, split mode)
3. Choose an engrave pattern — browse the gallery to preview all 21
4. Edit any panel inline (size, format, pattern, seed)
5. Preview your cut sheet with different material views
6. Click Download SVG to get your laser-ready file

Downloaded SVGs use standard laser cutter color conventions: red (#FF0000) for cut lines, blue (#0000FF) for engrave lines.

ModularGrid Import

Paste a ModularGrid rack URL to automatically calculate the blank panels you need. The tool detects each row's format (3U or 1U) and calculates the remaining HP.

Development

pnpm install
pnpm dev          # Start dev server
pnpm vitest run   # Run unit tests
pnpm build        # Production build

Cloudflare Worker (CORS proxy for ModularGrid)

cd worker
pnpm install
pnpm exec wrangler dev    # Local dev
pnpm exec wrangler deploy # Deploy to Cloudflare

Related projects

• Voltpages — quick-reference cheat sheets for eurorack modules (controls, I/O, behaviors, patch ideas).

License

MIT