Three-dimensional card basic tutorial [2] Frame deformation

Three-dimensional card basic tutorial [2] Frame deformation

In the first lesson (Basic Tutorial on Three-dimensional Cards [1] Frame Construction), we cut at the fold of the card Out of the rectangular frame. The frame obtained by this cutting method will have 2 identical faces. Looking from the side of the open card, we can see that there are 2 square faces (the area outlined with red lines)

Todays tutorial is to make some changes to the same faces and square faces to make them more varied. When you look at it from the side, you will find that those squares have turned into rectangles!

First, take a closer look at the floor plan below. These are some very important basic lines. As you can see, the green line refers to the mountain mark. The so-called mountain mark refers to the outermost crease of the entire frame, which is similar to the letter "V" turned upside down. The green and red lines cannot be cut off, they represent creases. The black lines need to be cut off.

Okay! Now comes the practical stage. The coordinate values ??used in the examples are for the convenience of demonstration and practice, and also for the purpose of drawing lines. You can also use the same method when designing three-dimensional cards in the future. Design the style first and then cut it.

First, follow the lines shown in the legend and draw the pattern shown on your own graph paper. Then cut along the black line, remember, only cut the black line. Then gently fold the red and black lines, and pinch them carefully with your fingers when folding. The red line is the mountain mark, and the green line is the valley mark. Be careful not to fold the entire center line of the card yet.

At this time, there must be a question in your mind. Logically speaking, the area of ??the rectangle below the center line of this card should be the same as the area of ??the rectangle above it (that is, the yellow area in the diagram), but as you said As you can see, something seems different now. There is a blank area between the two rectangles with the same volume.

Now you can use your finger to poke the rectangular area towards the front as you did in the first lesson.

Then carefully pinch the center line of the entire card with your fingers. Be sure to be careful not to pinch the rectangular areas that have been created.

While gently closing the card, fold the creases in the rectangular area as well.

Then follow the crease along the center line of the card and gently close the card completely. Oh~! A problem may arise at this time! The longest rectangle seems to be too long, so when the card is closed, it has exceeded the edge of the card. So when you design it yourself, be sure to pay attention to the size of the middle rectangular area of ??the card, which can be measured before production.

The following is a completed card. How can there be two different effects? Because if you poke the rectangular area in different directions, different effects will appear.