F1 rounded corner ratios

Summary

A construction page setting the rounded-corner ratio for the line device, with a large black diagram of nested curves at increasing weights on the left and three smaller bucket, roof and 45-degree examples on the right.

Visual description

Warm off-white background, thin top rule with the "Visual Identity / Graphic Devices" kicker and "Rounded corner ratios" title, "135" at right. A short left column explains that the curve echoes the racing line and the ratio stays constant ("Always align strokes to inside"). The center-left holds a big diagram on a faint grid: a family of thick black right-angle strokes curving from horizontal to vertical, each labelled by line weight (1pt, 12pt, 24pt, 36pt, 48pt, 60pt) with red dotted construction circles showing the corner radius growing with weight. The right third stacks three captioned thin-line diagrams, "Bucket device", "Roof device" and "45 angles", each annotating corner radius and line weight in small red type on a faint grid.

Key takeaway

Defining a single corner-radius rule with a nested specimen that shows the curve at every line weight at once, the construction geometry exposed in a contrasting spot color. Tying the curve to a brand story (the racing line) gives an arbitrary radius a rationale.

Reuse notes

A precise reference for any brand that builds rounded corners or curves into its identity. The weight-by-weight nested diagram and red construction marks are a clean documentation device. Engineering-flavoured; pair with plainer application pages so the spec does not overwhelm.