How to use it
- Choose the paper, orientation and units.
- Enter the triangle side and the margin; pick lines or dots.
- Download the PDF or print the preview.
How it works
Vertical lines are placed √3/2 × side apart. Two families of lines at +30° and −30° pass through the corners where the vertical lines meet, and every line is cut off at the margin box. The dot style puts a dot on each corner, with every second column shifted by half a side.
Example
A 10 mm side gives vertical lines every 8.66 mm and corners 10 mm apart on each vertical line. Within 190 mm of width that fits 21 columns.
Tips
- A side of 5 mm to 10 mm suits most sketches.
- Print at actual size so that the angles and sizes stay correct.