Crease Lines Example

Crease Line Example

In this section, I will show you an example of designing a box pleated model only consisting of flaps, including the crease lines, all in detail.

Example

For the model, I will show you how to design a base consisting of nine flaps. The first step is to choose a grid size. Since the model only consists of nine flaps, I will use a 16x16 grid. However, please know that the amount of flaps does not actually correspond to the grid size. To start off, the model consists of nine flaps, so I will pack the flaps into a paper:

Since corner flaps use the paper most efficiently, four of the circles are packed into the corners of the paper. Since the edge is the next best option, four more flaps are packed into the edge. The last circle is packed in the center. Next, I will add the squares surrounding the circles.

Now that there are squares around the circles, I will draw an "X" shape from corner to corner on each of the squares.

Now, I will cut off the excess. This includes all of the drawn lines outside of the square. Since the lines are not on the paper, they do not matter, which is why I will get rid of them.

The next step is to draw crease lines. All of the crease lines will be based on the grid lines, like so:

As you can see, the crease lines always turn away from the flap tip. The one crease line that directly runs through the center of the flap is a valley fold. Recall from earlier that mountain folds are red and valley folds are blue. Also, the crease lines are always alternating color, from valley to mountain. In box pleating, usually, crease lines of the same type do not appear right next to each other.