KiCadRoutingTools/fab_overrides.example.txt at main · drandyhaas/KiCadRoutingTools · GitHub

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# ---------------------------------------------------------------------------
# Example fab-floor override file  (KiCad Routing Tools, issue #237)
#
# Pass it on the command line:    route.py board.kicad_pcb --fab-overrides fab_overrides.example.txt
# or in the GUI:                  Basic tab -> "Fab Overrides File" -> Browse...
#
# It OVERLAYS the selected --fab-tier: only the values listed here change; every
# other floor comes from the base tier (standard unless --fab-tier advanced).
# Supplying an override file PINS the floor to one hard rung -- it disables the
# automatic standard->advanced escalation, because this file states YOUR exact fab
# capability. Copy this file, delete the lines you don't need, and edit the rest.
#
# Format: one "key = value" (mm) per line. "key: value" and "key value" also work.
# Everything after "#" is a comment. Values must be > 0. Unknown keys are warned
# and ignored.
#
# Keys and the built-in tier values for reference (per copper-layer count):
#
#   key                standard           advanced ("more costly")
#   ----------------   ----------------   ------------------------
#   via_diameter       0.45               0.25
#   via_drill          0.20               0.15
#   clearance          0.127 (2L)/0.10(4+) 0.10 (2L) / 0.09 (4+)
#   track_width        0.127 (2L)/0.0889(4+) 0.10 (2L) / 0.0762 (4+)
#   hole_to_hole       0.20               0.20      (via drill-to-drill)
#   pad_hole_to_hole   0.45               0.45      (pad drill-to-drill)
#   annular            0.25 (2L)/0.20(4+) 0.18 (2L) / 0.15 (4+)   (informational)
#   board_edge         0.20               0.20      (copper-to-board-outline min)
#
# NOTE: track_width and clearance are LAYER-DEPENDENT in the tier tables, but an
# override here is a SINGLE value applied on every board regardless of layer count.
# Only override them if you really want one fixed floor for 2- and 4+-layer boards.
# ---------------------------------------------------------------------------

# --- Example: a fab that does JLCPCB's tighter "advanced" vias and drills, which
#     I've confirmed I'm willing to pay for, but I keep clearance conservative. ---

via_diameter = 0.25      # smallest via outer diameter the fab will make
via_drill    = 0.15      # smallest finished drill diameter
hole_to_hole = 0.20      # min via drill edge-to-edge spacing

# clearance  = 0.09      # uncomment to allow 0.09 mm copper clearance (all layers)
# track_width = 0.09     # uncomment to allow 0.09 mm tracks (all layers)