Ideal for planning 3D Printer projects and any kind of three-dimensional designs, this isometric 3D graph paper notebook is printed with a grid of equilateral triangles. It is perfect for constructing any kind of three-dimensional designs including architecture, landscaping or sculpture. Is is also very useful for drawing puzzles orh complex labyrinths with 3D images, boxes and stairs. Isometric 3D graph paper is a triangular graph paper which uses a series of three guidelines forming a 60° grid of small triangles. The triangles are arranged in groups of six to make hexagons. Perfect for both engineers and artists, and invaluable for any kind of three-dimensional design.