CADKEY Gen 2 Part 4: The Presentation Boundary
A correct DXF can still look wrong in a browser. The solution is an explicit normalization step between CAD export and web presentation.
Blog
CADKEY Gen 2 Part 2: The Boundary Between Curves and Faces
Part 2 of the CADKEY Gen 2 PRT investigation: the verified cubic spline decode, corrected linked-list model, embedded ACIS evidence, and the B-rep questions that remain open.
CADKEY Gen 2 Part 3: Shipping the Converter
The CADKEY Gen 2 investigation becomes a reproducible headless PRT-to-DXF conversion pipeline, tested on real files and ready for archive recovery work.
30% of a CAD File Defines All Geometry — We Decoded 90% of It
A byte-level reverse engineering of the CADKEY Gen 2 PRT format: 5,950 entities across 28 files, verified COEDGE vertex extraction, and a format specification where none existed.
What I've Learned Managing AI Coding Agents
Six months of shipping production code with AI agents — what works, what breaks, and where we go from here.