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PCB Design Rules

Public Made by Adom

by adom

Canonical PCB fab design rules (DRC) for every popular vendor: one JSON record per vendor, process and layer count, with generated Fusion/EAGLE .dru and .edru, KiCad .kicad_dru plus board-setup JSON, Altium .RUL exports, and a human comparison table. Every number cites the vendor's own capabilities page and the date it was read.

pcbdesign-rulesdrcfabricationjlcpcbpcbwayfusionkicadaltiumedrukicad_dru
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main
pcb-design-rules / kicad / macrofab-2L.board-setup.json
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John Lauer Initial publish: canonical per-vendor PCB fab design rules. 13 vendors, 56 records (vendor, process, layer count) read… bafc3ce 1mo ago
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{
  "vendor": "MacroFab",
  "process": "standard",
  "layerCount": 2,
  "boardSetupConstraints": {
    "minTrackWidthMm": 0.127,
    "minClearanceMm": 0.127,
    "minViaDrillMm": 0.3048,
    "minViaDiameterMm": null,
    "minHoleMm": 0.3048,
    "copperEdgeClearanceMm": null,
    "holeToHoleMm": null,
    "annularRingViaMm": null,
    "annularRingPadMm": null,
    "silkMinLineWidthMm": null,
    "maskExpansionMm": null
  },
  "notes": "Apply as Board Setup, Constraints. The matching .kicad_dru file carries the same limits as custom rules; the two are redundant on purpose so both the GUI constraints and kicad-cli DRC enforce them.",
  "sources": [
    {
      "url": "https://support.macrofab.com/s/article/pcb-specifications-and-drc",
      "dateRead": "2026-09-03"
    },
    {
      "url": "https://support.macrofab.com/s/article/can-i-customize-my-pcb",
      "dateRead": "2026-09-03"
    }
  ]
}