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Hacker News front page6 min readintermediate

PCB is brought to you by Fable 5

Read on a6mzero.comHN 159·106 comments

Summary

The author used the AI tool Fable 5 to generate a 4‑layer RP2350 development board for an E‑ink display from a short English description and ordered it from JLCPCB. While the AI handled component placement, it left many DRC errors and routing gaps, requiring manual fixes and highlighting the limits of current AI‑driven PCB design.

  • Fable 5 can generate a complete 4‑layer RP2350 board from a short English prompt, but it produces DRC errors and wrong footprints that need fixing.
  • Freerouting left 49 nets unconnected, while KiCadRoutingTools completed routing in 1.25 s, showing tool choice matters.
  • Manual verification remains essential: 65 DRC errors and mismatched packages required human correction before manufacturing.
  • Ordering from JLCPCB with AI‑prepared files is straightforward, though component availability may need back‑and‑forth adjustments.

Hardware engineers and hobbyists should see both the promise and the pitfalls of AI‑generated PCB layouts before relying on them for production.

6/10
aipcbhardwareroutingelectronics

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