Illustration of folding an octagonal paper Christmas tree. How to fold a three-dimensional stacked C

The Christmas tree is an indispensable element of Christmas! Illustrated tutorial for origami three-dimensional Christmas tree using octagonal paper. First look at how to make square paper into octagon, and then learn to fold paper Christmas tree.

1. First fold the square paper diagonally, and then unfold it to get the diagonal crease as shown in the picture.

2. Then fold the four corners toward the middle point of the paper, and then unfold it, so that the resulting folds surround a square structure.

3. Then fold the triangle structure formed on the four corners in the previous step into staggered folds, and use a crease in the middle of the triangle to form an intersection. This ultimately creates an intersection at each of the four corners of the paper.

4. A total of 8 intersection points will appear, and these eight intersection points includeThe resulting shape is the octagonal paper style we need. Use scissors to cut off the excess part.

The following is the final picture and CP picture shared by Francesco Guarnieri, the author of this Christmas tree origami. It can be seen that the production of this CP diagram needs to be carried out on the basis of octagonal paper. The red dotted line represents the valley fold, while the solid line represents the peak fold.

You need to use different sizes of paper to make multiple basic origami components so that you can assemble the final three-dimensional Christmas tree. The paper sizes that need to be used are 12 cm, 9 cm, 18 cm, 15 cm, 24 cm, 21 cm, 30 cm and 27 cm. When you finally assemble it, you need to assemble it in this order to ensure that the origami Christmas tree looks more beautiful!

1. After we have completed all the pre-folds, we have the folding style as shown in the picture.

2. Fold the line structure on each oblique side inward. At this time, the origami component will become similar to a Christmas star.

3. Then based on this origami component, first fold the top corners of the origami model backwards. The obtained origami model should be as shown in the picture.

4. Fold the structures on the left and right sides of the structure that was folded backward in the previous step and then fold it back to complete the folding of one of the edge structures. In the end, this origami model needs to complete the folding of all 8 edge structures.

5. From this step, you can see the edge adjacent to the previous step, and fold it in the same way. When completed, it will look like the origami diagram.

6. The remaining edges are also folded in the same way. After completing the folding, we get the same origami edge structure as before.

7. Finally, when all the edge folding is completed, we will obtain the origami model style as shown in the picture, and then we can directly assemble the Christmas tree we need without using glue.