The self-contained rebuild path is build_offline.py (Python 3 standard library).
Edit reference_design.json and viewer source carefully, then run that script.
It creates Leak_Finder_Reference_Model_Rebuilt.html beside these files.
Open it and export a fresh GLB using the viewer button.

Other scripts document how the reference was produced; mesh_assets.py requires
CadQuery and original vendor STEP inputs, and build_guide.py requires ReportLab,
DejaVu fonts, the canonical JSON and rendered figure inputs. They are included
for transparency and need their original research/QA directory structure.
They are not required to open or share the finished deliverables.

The Adafruit ADC and driver STEP originals are in manufacturer_CAD (MIT).
Tameson needle source CAD is linked in source_links.md; the package contains its
STEP-derived mesh inside cad_meshes.json, HTML and GLB.
