Laser Cutting File Generator - Preparing Brep Geometries for Digital Fabrication :)

Intended users

This tool is intended for designers, architects, industrial designers, and students who want to efficiently prepare their 3D Brep geometries for 2D laser cutting. It supports users working in prototyping, model making, and digital fabrication workflows by automating the preparation of cut-ready files from complex 3D forms.

Need you’re trying to provide a solution or support for

Manually converting 3D models into accurate, flattened 2D drawings for laser cutting is time-consuming and error-prone. Users must extract planar surfaces, unroll geometry, label parts, and sort them onto material sheets, often with limited automation capabilities. This tool streamlines and automates that process, enabling fast, repeatable, and fabrication-ready outputs with minimal manual intervention.

Inputs

Users will provide the following inputs:

Brep geometry (the 3D model to be fabricated)
Material sheet size (e.g., 18" × 24", A3, etc.)
Material thickness

Optional:

Labels/tags for part identification

Underlying logic of the model you’ll implement

Explode the Imported Brep:

Decompose the input Brep into individual planar surfaces that can be unrolled.

Flatten the Brep Geometry:

Use the Unroll component to project each 3D surface into 2D, preserving dimensions.

Add Notches / Design Aids for Assembly:

Incorporate notches, tabs, or holes that help with part assembly.

Label Parts:

Add text tags or IDs to each part for easy identification after & during cutting.

Organize on Sheets:

Place all 2D parts onto material sheets, arranged either manually or using nesting to optimize material usage.

Potentially Assign Layers for Fabrication:

Assign colors or layer names for different cut types (e.g., red = cut, blue = engrave), based on laser cutter settings.

Export to Vector Format:

Bake the 2D geometry to Rhino and export it as DXF or SVG for fabrication.

Outputs