Print the tracking marker
Print this page at actual size / 100% scale — not "fit to page" or "shrink to fit," or the AR grid will be sized wrong. Use the ruler below to double-check your printer didn't rescale it.
Should measure exactly 10cm × 10cm once printed — check with the ruler below.
This line should measure exactly 5cm
After printing, cut along the marker's outer black square and place it flat on your table. Keep it fully visible and uncovered while using the AR view — the whole card grid is measured relative to it.