# Download exercise
All data are fictional TRAIN-C / variant A. Units mm, top view, origin bottom-left. Expected SMT set R1/R2/D1; C3 DNP excluded by this illustrative receiving agreement. D1 cathode left at 0°, right at 180°. Coordinate values match assembly-drawing.svg. Run `python verify.py`: bad file has exactly missing R2, unexpected C3, orientation D1; good file has none. No bottom components or other exceptions.

`command -v kicad-cli` returned no path on 2026-10-30. These are deliberately authored CSVs, not a claimed KiCad export. The SVG is a drawing for this exercise, not a PCB fabrication dataset.