T03 // Typography & Technical Papers
30° Isometric Grid, Bullet Dot Grid & Polar Coordinate Paper in 1:1 Scale
Precision geometric specialty papers for 30° axonometric sketching, bullet Dot Grid notebooks, and polar coordinate (r, θ) plots with customizable radial and angular steps in SVG and PowerPoint.
Key formulas & geometric relations
θ_iso = ±30° · 90° · (r, θ) · Δθ ∈ [5°, 45°] · A4 = 21.0 × 29.7 cm