AI-generated "CAD slop": Fable 5.1 sketches 106 manual cuts instead of using linear pattern

hudzah · x · 2026-09-10

normalfactoryco shows AI making parts "not the way a human would": Fable 5.1 failed to use a linear pattern in CAD and instead manually sketched 106 individual cuts.

hudzah jokes we're entering an era of "CAD slop." It highlights a familiar failure mode: models can produce functionally correct output while ignoring engineering abstractions, yielding unmaintainable designs.

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