Lazrit
Tool

Automatic Bridge Generation for Laser Cutting

A bridge is a tiny strip of uncut material that holds a floating island to the rest of the design. Without bridges, the letter 'O' becomes an oval doughnut on the cutting mat. Lazrit detects every island automatically, proposes the shortest invisible bridge, and lets you accept, drag, or replace each one before exporting.

3 lifetime exports — no credit card.

The problem

Designers and makers waste hours manually adding bridges in Inkscape, Illustrator, or LightBurn — usually after the first failed cut. Lazrit's auto-bridge engine does it in one pass, picks bridge widths from your material profile, and places them where they're least visible.

How Lazrit handles it

  1. Upload artworkPNG, JPG, or SVG. Lazrit traces raster art into clean vectors before the topology pass.
  2. Run topology validationLazrit walks the path tree and flags every island that isn't connected to the main piece — letter counters, floating decorations, stencil voids.
  3. Auto-bridge proposalFor each island, the shortest geometrically valid bridge is proposed at your material's minimum bridge width. You see the proposed bridge as a colored line over the design.
  4. Review and tuneDrag any bridge to a less visible spot, delete unwanted ones, or add manual bridges. The validation re-runs as you edit.
  5. ExportThe exported SVG includes every accepted bridge as part of the cut path. LightBurn, xTool, and Glowforge open it cleanly.

Frequently asked questions

Can I export without bridges?

Yes — accept the topology warnings and the file exports as-is. You'll see the warning count in the export panel.

How wide are the bridges?

Material-dependent. Wood: 2 mm. Acrylic: 2.5 mm. Mylar/paper: 1 mm. Configurable per project.

Will bridges show in the final cut?

Slightly — they're the same width as the kerf-plus-bridge. Lazrit positions them in low-visibility spots (concave corners, along straight runs).

Can I save my bridge edits as a workflow?

Yes — once published, your bridge tuning is a saved workflow you can re-apply to any future upload.

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