What problem it solves

3D scans need to be checked against nominal geometry, measured, and understood before they can guide manufacturing or inspection workflows. ScanRuler addresses this with browser-based measurement, deviation analysis, wall-thickness mapping, reverse engineering, and mesh editing while keeping local file processing on the user’s computer.

Key features

• Geometric measurement and inspection — Fit spheres, cylinders, cones, tori, planes, circles, and other elements to a scan, then create dimensions and GD&T checks between them.

  Source: README

• Deviation and wall-thickness analysis — Compare a scan with a CAD reference, inspect signed deviations and volume errors, or map wall thickness directly from a single scan.

  Source: README

• 2D measurement from flatbed images and sections — Detect edges in flatbed scans or sections, fit geometric entities, add dimensions, and export calibrated drawings as SVG, DXF, or CSV.

  Source: README

• Reverse engineering into solid models — Turn scan sections and fitted surfaces into editable solid bodies with constraints, dimensions, extrusion, revolve, and common CAD features, then compare the result with the scan.

  Source: README

• Mesh cleanup and reduction — Edit an independent copy of a scan by cleaning geometry, changing surfaces, filling holes, applying booleans, hollowing parts, or reducing mesh complexity within a tolerance.

  Source: README

Quick start

Copied verbatim from the project's README.

npm install
npm --prefix mcp ci # the agent server's dependencies: its tests and the agent browser checks
npm run dev       # local dev server
npm test          # unit tests, plus acceptance tests on the local scans if present
npm run build     # type-check + production build to dist/
npm run e2e:ci    # browser tests on generated fixtures; run after building

Who it may suit

Inference: this may suit users who inspect 3D scans, compare measured geometry with CAD, document 2D sheets, model replacement parts, or prepare scan data for CAD workflows.

Topics to discuss

• Which scan-to-CAD workflow would most benefit from additional automation?

• Which measurement results should be included in a standard inspection report?

• What features should be prioritized in the reverse-engineering guide for common part types?

Written by ReadmeX AI from the project's README, source and public GitHub data; it may contain mistakes.

Read the original README https://github.com/CNCKitchen/ScanRuler#readme

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