How to Draft Rulers
- 1
A simple rectangle is the basis for the ruler.
Draw the basic frame of the ruler with a simple rectangle. Use an actual ruler to measure and create the four straight lines of the rectangle. - 2
Set up your inch measurements with simple lines.
Mark each inch with a vertical line on the ruler. Show centimeters on top of the ruler using a slightly smaller vertical line along the top of the rectangle. - 3
Add the numbers lightly so you can erase any mistakes.
Label each inch number using small text. Mark out these numerals lightly in pencil to ensure the spacing is done properly. - 4
Add each 1/8th of an inch with small lines.
Add seven small vertical lines between each inch. Alternate each line with the first being short, the second slightly longer, and the third short again. The fourth line, which represents a half inch, should be the longest. Repeat the process for the fifth through seventh lines. - 5
Centimeters use equal lines to split up each measurement.
Add four small vertical lines of equal size and add one longer line for the fifth line on the centimeter side. Add four more small vertical lines of equal size after the fifth. - 6
Inking the drawing creates crisp lines.
Ink the illustration with a black pen. Let the ink dry and carefully erase the pencil lines with a kneaded eraser. Scan the illustration at 300 dots per inch. Save the file as a jpeg and drop the ruler into any illustration.
