Printing your plan at 1:1

Export → Export as PDF (1:1) (also in the ⌘K command palette) produces a true-scale PDF of your layout: 1 mm of track prints as 1 mm on paper. Trim and tape the pages together, lay them on your baseboard, and drop real track straight onto the printed footprints.

Each piece prints at its system's real sleeper-base width, so the outlines match the plastic you're holding.

Tiling

A layout larger than a sheet is split across pages. Tiles overlap slightly and carry corner registration crosses plus a trim border, so you can line the sheets up and tape them with the track meeting cleanly. Each page is labelled with its sheet position (e.g. R2·C1 of 3×4).

Print at 100% — this is the important bit

The whole point is true scale, so the one thing you must get right is your printer's scaling:

• In the print dialog choose Actual size / 100% / Custom scale: 100%.
• Turn off "Fit to page" / "Shrink to fit" — that silently rescales the plan and ruins the 1:1 accuracy.

Every page prints a 100 mm calibration ruler. After printing, measure it with a real ruler: if it reads 100 mm, your scale is correct. If not, your printer rescaled — fix the scaling setting and reprint.

Other export formats

For a shareable image or a portable file instead of a 1:1 build template, see Export as PNG (a track-plan image) and Importing and exporting .trackplan files.