Ryan Malloy
a06adbee13
rooms_shove_channel is the headline density win: a sealed NET_A wall leaves no top<->bottom door, so plain room routing drops NET_C; with shove=True NET_A is nudged aside and both nets route, DRC-clean and deterministic. rooms_wide_door seats two nets through one wide gap at distinct projected gate points with no shove. Cover the occupancy-aware projection math directly, assert the four foundation fixtures stay byte-identical under shove=True (shoves==0), and extend the room DRC-clean parametrize with both new fixtures.
freeroute
A native Python PCB autorouter — a Java-free port of the FreeRouting engine.
Why
kicad-mcp currently autoroutes by shelling out to freerouting.jar, which
drags in a JVM dependency. freeroute reimplements the routing engine in
pure Python so the toolchain needs no Java at all.
The contract
The entire integration surface is two Specctra files:
board.dsn ──▶ freeroute ──▶ board.ses
(unrouted) (routed session: traces + vias)
kicad-cli already exports .dsn and imports .ses, so freeroute is a
drop-in replacement for the JAR step — nothing else in the pipeline changes.
Status
Pre-alpha. Under active development. See docs/PORTING_PLAN.md
for the architecture and porting roadmap.
Usage (target)
freeroute board.dsn -o board.ses
Development
uv sync
uv run pytest
uv run ruff check src/ tests/
License
GPL-3.0-or-later, matching the FreeRouting source it is ported from.