Side Shinjis soft-shell turtle origami tutorial, real shot of the author swimming in sulfuric acid.
Everyone should pay attention to the CP diagram. Most of them have angles of 22.5°, so it is not difficult to draw lines.
Align the fold with the center line (just press out a small section).
This is after folding all 4 pieces
Bisection the 45° angles of the isosceles RT triangle inside the larger square.
This is all folded.
Fold in half.
Align the left corner with the right crease and fold.
Fold out a small isosceles RT triangle.
What it looks like after opening.
Fold it 3 more times.
Use the center of the square as the center O, and draw a circle with the distance from the vertices of the four small squares just folded to O as the radius.
The circle and crease are compared to 4 points.
Use the line connecting these 8 points to form the crease.
After folding, erase the auxiliary lines.
Construct the angle bisector.
Align the edges with the center line and fold.
What it looks like after folding.
Make it symmetrical and fold both sides like this.
Make parallel lines.
Enlarged.
After folding.
The crease connecting the two points.
All folded.
Come to the head and fold the corner bisector.
Fold it.
Fold down.
After opening.
The other side.
Come to the end.
Collapse as shown.
After putting it away (front).
Back.
Fold along the crease.
The other side.
Folded.
Sink.
Tail.
Open the mezzanine.
After folding.
Get a shape adjustment
Fold out the claws.
The head has a folded belly.
Plastic surgery.
