Shelf 61i n3de80l

Extract from Origami City Kit • By Joel Stern • Published by Tuttle Publishing

About

Cost
$ $ $ $ $
Difficulty
• • • • •
Time
25 mins

Origami City
The Helicopter is made from two sheets—one for the Main Rotor
and one for the Fuselage. An unusual technique is used to connect
the two pieces.

Posted by Tuttle Publishing Published See Tuttle Publishing's 46 projects » © 2018 Joel Stern / Tuttle Publishing · Reproduced with permission.
PrintEmbed

You Will Need

  • How to fold origami. Origami Helicopter - Step 1
    Step 1

    Main Rotor

    The Main Rotor is based on the traditional origami pinwheel. Begin with the hidden (inside) side of the paper facing you. The position of the paper is not important.

    Fold and unfold corner to corner in both directions.

  • How to fold origami. Origami Helicopter - Step 2
    Step 2

    Fold and unfold left to right and bottom to top.

  • How to fold origami. Origami Helicopter - Step 3
    Step 3

    Fold and unfold each of the four edges to the center.
    The result is a 4 x 4 grid with two diagonals.

  • How to fold origami. Origami Helicopter - Step 4
    Step 4

    Turn the paper over.

  • How to fold origami. Origami Helicopter - Step 5
    Step 5

    Fold and unfold all four corners to the center.

  • How to fold origami. Origami Helicopter - Step 6
    Step 6

    Turn the paper over.

  • How to fold origami. Origami Helicopter - Step 7
    Step 7

    Press down at each of the four dots. This curls the four corners up and makes the next few steps easier to do.

  • How to fold origami. Origami Helicopter - Step 8
    Step 8

    Fold the top and right edges inward at the same time. This causes a triangular flap to stand up in 3-D where the edges meet.

  • How to fold origami. Origami Helicopter - Step 9
    Step 9

    Lay the triangular flap flat to the left.

  • How to fold origami. Origami Helicopter - Step 10
    Step 10

    Repeat steps 8–9 on the other three sides, creating a pinwheel. For the fourth side you’ll have to undo the first flap a little.

  • How to fold origami. Origami Helicopter - Step 11
    Step 11

    Turn the model over.

  • How to fold origami. Origami Helicopter - Step 12
    Step 12

    Fold edge A to the horizontal center crease

  • How to fold origami. Origami Helicopter - Step 13
    Step 13

    Unfold step 12.

  • How to fold origami. Origami Helicopter - Step 14
    Step 14

    Repeat steps 12–13 on the other three sides.

  • How to fold origami. Origami Helicopter - Step 15
    Step 15

    Bring sides X and Y toward the center at the same time. The corner where they meet will pop up in 3-D.

  • How to fold origami. Origami Helicopter - Step 16
    Step 16

    Pinch the corner that was created in step 15 so that it pops up fully. Then repeat steps 15–16 on the other three adjacent sides.

  • How to fold origami. Origami Helicopter - Step 17
    Step 17

    All four corners are now 3-D. Flatten each side as shown. You’ll have to do this on all four flaps at the same time in order for them all to lie fl at.

  • How to fold origami. Origami Helicopter - Step 18
    Step 18

    The completed Main Rotor.

  • How to fold origami. Origami Helicopter - Step 19
    Step 19

    Fuselage
    Begin with the hidden (inside) side of the paper facing
    you. The position of the paper is not important.

    Fold and unfold the bottom corner to the top.

  • How to fold origami. Origami Helicopter - Step 20
    Step 20

    Fold the edges to the center crease.

  • How to fold origami. Origami Helicopter - Step 21
    Step 21

    Fold the top and bottom corners to the dot.

  • How to fold origami. Origami Helicopter - Step 22
    Step 22

    Mountain-fold the model in half.

  • How to fold origami. Origami Helicopter - Step 23
    Step 23

    Fold and unfold the white triangular portion of the model as shown.

  • How to fold origami. Origami Helicopter - Step 24
    Step 24

    Fold the near flap over to the other side.

  • How to fold origami. Origami Helicopter - Step 25
    Step 25

    Reverse-fold (tuck inside) the right corner along the crease you made in step 5.

  • How to fold origami. Origami Helicopter - Step 26
    Step 26

    Fold the near layer to the left.

  • How to fold origami. Origami Helicopter - Step 27
    Step 27

    Fold the bottom corner up to the top.

  • How to fold origami. Origami Helicopter - Step 28
    Step 28

    The completed Fuselage.

  • How to fold origami. Origami Helicopter - Step 29
    Step 29

    Prepare the Main Rotor for assembly

    Turn the Main Rotor over.

  • How to fold origami. Origami Helicopter - Step 30
    Step 30

    Open out one layer of each blade as far as possible.

  • How to fold origami. Origami Helicopter - Step 31
    Step 31

    Here is the result.

  • How to fold origami. Origami Helicopter - Step 32
    Step 32

    Prepare the fuselage for assembly

    Swivel the triangular fl ap a little
    to the right so that it’s perpendicular
    to the colored portion. Then stand
    the piece upright.

  • How to fold origami. Origami Helicopter - Step 33
    Step 33

    Here is the result.

  • How to fold origami. Origami Helicopter - Step 34
    Step 34

    Assembly

    Place the corner of the base of the Fuselage on the corner of the center square of the open Main Rotor. The dotted gray triangle shows where the base goes. Two corners of the base will protrude a little beyond the square.

  • How to fold origami. Origami Helicopter - Step 35
    Step 35

    Tuck the two protruding tips of the corners under the edges of the center square.

  • How to fold origami. Origami Helicopter - Step 36
    Step 36

    Close the Main Rotor back up, wrapping the flaps around the triangular base. As you do this, the base will be forced to lay to the right.

  • How to fold origami. Origami Helicopter - Step 37
    Step 37

    Fold the base down, creasing along the inner edge of the Main Rotor.

  • How to fold origami. Origami Helicopter - Step 38
    Step 38

    Fold the base to the left so that edge C lies along edge D.

  • How to fold origami. Origami Helicopter - Step 39
    Step 39

    Unfold step 5.

  • How to fold origami. Origami Helicopter - Step 40
    Step 40

    Reverse-fold (tuck inside)
    the Fuselage along the crease
    you made in step 5.

  • How to fold origami. Origami Helicopter - Step 41
    Step 41

    Swivel the Main Rotor up
    so that it is positioned perpendicular
    to the Fuselage.

  • How to fold origami. Origami Helicopter - Step 42
    Step 42

    The completed Helicopter. Add
    tail rotor stickers and you’re
    ready to take a whirl over your
    city!

Made this project? Share your version »

Comments