2026 · 3D PRINTING

PartMatch

3D-printable replacement parts from a photo of the broken one. The adversarial PRD review asked whether photo-to-printable-geometry had actually been proven feasible. It hadn't. Scrapped at review, for the price of one session.

SCRAPPED

Overview

3D-printable replacement parts from photos of broken ones. It exists as a PRD and a no-go memo.

Project Design

The adversarial PRD review asked one question the plan couldn't answer: had the hard part, turning a photo into printable geometry, actually been proven feasible? It hadn't.

Lessons learned

What carried forward

Adversarial review as a standing gate before any build.

Posts from this project

Case study in progress.

"A written rule is a suggestion. A gate is a control."
The operating principle behind every project here. The same bug shipped three times past written rules — and zero times past a CI gate. Deterministic enforcement beats advisory documentation, in agent harnesses and security programs alike.