Three directions on one page
The grid is based on equilateral triangles. Its lines meet at 60 degree angles, giving you three directions to follow when sketching boxes, blocks, or other forms. Dot versions mark the grid points without drawing every line.
For example, sketch a cube by drawing equal-length edges along three grid directions that spread 120 degrees apart. Parallel edges stay parallel in the drawing; the cube’s actual right angles appear as different angles on the page.
Keep the scale with the drawing
Decide what one grid step represents and label it. If each step stands for 1 cm, an edge drawn four steps long represents 4 cm along that direction.
Grid-step lengths apply along the chosen isometric directions. A diagonal across a face needs its own geometric calculation. If you intend to measure the paper itself, check the printed spacing with a ruler after printing.