Pen Plotter Pipeline

A Python pipeline that runs 22 independent factory generators, feeds each output through a scoring engine combining seven algorithmic signals (including a CLIP aesthetic predictor trained on 250K artworks), five vision-language judges, and routes high-scoring pieces to the physical plotter. Factories span the full visual range: sports field geometry, 3D rayhatched landscapes, colour cross-hatching, CMY halftone dots, moire interference, recursive territory maps, woven textile patterns, op-art, wavy engraving, and more.

The scoring stack (v3): ink coverage, line complexity, multi-scale composition, visual entropy, CLIP aesthetic score, uniqueness (perceptual hash), and feasibility. On top of those, five vision-language judges score the top pieces: Claude via subagents, Gemini twice (aesthetic + adversarial), Qwen via OpenRouter, and Cerebras. CLIP also provides zero-shot art movement classification — tagging each piece as Op Art, Constructivism, Minimalism, Engraving, etc.

Physical output goes through iDraw 2.0 with archival-quality pigment ink on A3 cotton paper. Pen speed, acceleration, and lift height are tuned per factory. Path optimization via vpype reduces pen-up travel by 93 to 96% before every plot.

25,040 specimens have been scored to date. The full editorial field journal, including the discovery that 26% of the algorithmic top-50 are 'grey rectangles' the algorithms loved but Claude rated 1.8/10, is published as a separate artifact.