How to Enlarge a Drawing Using a Grid

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How to Enlarge a Drawing Using a Grid. You don't need to be an artist to copy or enlarge any picture with great results.

Things You'll Need

  • Rulers
  • Butcher Papers
  • Notebook Papers
  • Comic Books
  • Pencils And Erasers
  • Yardsticks
  • Coloring Books
How to Enlarge a Drawing Using a Grid
How to Enlarge a Drawing Using a Grid (Image: Paul Brittenham/Demand Media)

How to Enlarge a Drawing Using a Grid

Step 1

Select the picture you want to enlarge.

Step 1
Step 1 (Image: Illustration: Paul Brittenham/Demand Media)

Step 2

Place a ruler along the top edge of the picture.

Step 2
Step 2 (Image: Illustration: Paul Brittenham/Demand Media)

Step 3

Make a small mark with a pencil at every 1/2 inch.

Step 3
Step 3 (Image: Paul Brittenham/Demand Media)

Step 4

Mark the bottom edge of the picture the same way. Make sure you have the same number of marks at the top and bottom of the picture.

Step 4
Step 4 (Image: Paul Brittenham/Demand Media)

Step 5

Connect each pencil mark at the top of the picture with a corresponding mark at the bottom using a ruler. This will make parallel lines over the picture.

Step 5
Step 5 (Image: Paul Brittenham/Demand Media)

Step 6

Measure and mark every 1/2 inch along the side edges of the picture.

Step 6
Step 6 (Image: Paul Brittenham/Demand Media)

Step 7

Connect the marks on each side. Your picture is now covered with squares called a grid.

Step 7
Step 7 (Image: Paul Brittenham/Demand Media)

Step 8

Calculate how much larger you need to make your picture and how large you need to make squares on a second grid. For example, if you are doubling the picture size, squares in the second grid will be 1 inch.

Step 8
Step 8 (Image: Paul Brittenham/Demand Media)

Step 9

Draw a second grid on a larger sheet of blank paper. Use a yardstick to make this larger grid if necessary.

Step 9
Step 9 (Image: Paul Brittenham/Demand Media)

Step 10

Copy the picture from the first grid, square by square, by drawing it on the new, larger grid.

Step 10
Step 10 (Image: Paul Brittenham/Demand Media)

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Tips & Warnings

  • Reduce a picture by decreasing the size of the squares on the second grid using the same technique. If the size of the original grid is 1/2 inch and you want to make the picture half the size, make 1/4-inch squares on the second grid.
  • Use this technique to enlarge or copy cartoon characters, coloring book pictures and lettering for signs.
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