PCB Design Rules
Public Made by Adomby 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.
fce5c48
8d ago
3rdPartyFab finished copper
Confirmed by John Lauer on 2026-10-12: 3rdPartyFab can finish with 1 oz copper, and 2 oz is available on request.
Use 1 oz finished surface copper as the standard option (approximately 0.035 mm). A 2 oz build (approximately 0.070 mm) requires an explicit request. These are finished surface weights, not starting-foil specifications. They do not establish inner-layer stackup, thickness tolerances or minimum hole-barrel plating.
The existing trace/spacing rules conditioned on 1 oz remain unchanged. Availability of 2 oz is not approval to use the 1 oz minimum geometries at 2 oz; confirm the appropriate fabrication rules when requesting it.
# 3rdPartyFab finished copper
Confirmed by John Lauer on 2026-10-12: 3rdPartyFab can finish with **1 oz copper**, and **2 oz is available on request**.
Use 1 oz finished surface copper as the standard option (approximately 0.035 mm). A 2 oz build (approximately 0.070 mm) requires an explicit request. These are finished surface weights, not starting-foil specifications. They do not establish inner-layer stackup, thickness tolerances or minimum hole-barrel plating.
The existing trace/spacing rules conditioned on 1 oz remain unchanged. Availability of 2 oz is not approval to use the 1 oz minimum geometries at 2 oz; confirm the appropriate fabrication rules when requesting it.