Add more diagonal center, crease, and unfold creases,... i 27.Lift one flap at the left side and collapse an existing creases The paper will not lie flat.. Clased-sink the corner to th
Trang 1Pacific Giant Red Sea Urchin
1
a
Based on Robert J Lang's "Atlantic Purple Sea Urchin"
Use paper that doesn't tear easily, or use foil-backed paper
Use a square measuring at least 30 inches (75 cm) to a side
Begin with the white side up
T
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Ị Fora ra tats
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4 Crease the paper into 2 Crease the paper into 3 Crease the paper into
fourths vertically and eights vertically and sixteenths vertically and
horizontally horizontally horizontally
ais
tÌ
NI
4 Crease the diagonals For
extra safety, put a piece of tape
at the center of the paper
5 Bring the comers to the 6 Add more diagonal center, crease, and unfold creases,
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10 And more 11 Mountain-fold two opposing
comers behind, 12 Valley-fald in halt
13 Squash-fold 14, Petal-fold 15, Repeat steps 13- 14 on
the top comer and unfold to step 11
16 Repeat steps 11 - 18, 17 Valley-fold 18 Reverse-fold along angle
bisectors and unfold completely Repeat on all similar places along the edges of the square
20 Valley-fod 24, Open up on bath sides of the
19 Precreasing complete top comer and fold the right side Fold a Waterbomb Base of the model over to the left
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flap to the left
24, Valley-fold the 25 Repeat steps 22- 24
behind and unfold to ste
20 Turn the madel aver
26 Repeat steps 20 - 25
i
27.Lift one flap at the left side and collapse
an existing creases The paper will not lie flat
28 Repeat step 27 on the three other flaps
29 Swing ane edge to the left
Inside, book-fold one of the small edges to the lett
30 Clased-sink the corner
to the top and collapse on existing creases The model
‘will nat lie completely flat
931 Repeat steps 29 - 30
on the three similar flaps 92 Repeat step 29 99 Closed-sink as in step 30, and collapse on the corer up
existing creases
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on the three similar flaps edge to the right collapse on existing creases
37 Repeat steps 36 - 36 on the 38 Lift one large flap
three similar places Then rotate and fold the bottom of
the model 1/2 tum clock-wise the right edge to the right,
> > 4
39 Valley-fold one triangular flap upward
40 Enlarged view 44, Fold and unfold 42 Pull a single layer 43, Open out the
of the bottorn comer several times of paper out from inside pocket slighty
Fold a rabbit ear the rabbit ear
44, Pull all the edges 45, Foldthe 46, Repeat steps 47 Fold all ofthe 48, Fold the loose out from inside the point down: 43- 44 on the top layers to the left pint down
pocket, turning a layer
inside-out as you go
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48 Fold one lang edge andthen 80.Repeatsteps 39-48 51 Swing the large flap
one triangular flap to the right back to the left and flatten
52 Repeat steps 38-51 83 Fold one small flap 54, Closed-sink the corner to the 0n two large flaps and to the left Then rotate top and collapse an existing
38 - 60 on the third the madel 1/2 turn creases The model will nat lie flat
`
`_ Ss
X
A A `
55 Open out from the inside the paper 56 Like this Fold
marked X Simultaneously, clased-sink the fiap to the right
the carer underneath it upward, as in
step 54, The two small flaps should be
on each side of the sink, as in step 54,
Collapse on existing creases ua
57 Repeat steps 53 - 56
on the three other flaps
model 1/2 turn +1 on all four flaps to the left Then rotate and collapse an
Gpy 1⁄2
AY
(Gpy
1 — 1⁄2
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Gey
66 Valley-fold two 48 edges +one 67 Repeat step 66
of the twa small flaps inside to the an the three other
left Then repeat steps 84 - 56 large flaps
step 55 has ta he done twice, one
time on each side af the large flap
68 Rotate the
38 - 57! The model
is now getting very thick Be carefull!
70 Crease the angle
hisectors on the first,
af the four edges
71 Squash-fold the 72 Pinchthe sidss edge, but flatten only part of the squash and swing its upper halt tt
he resulting flap to the left
ofthe lower 73 Reverse-fald
the edge on existing creases
74, Fold the
point down
75 Pull all the folded
edges aut of the packet
as in step 46
76 Fold all layers
to the right TT Repeat steps 70 - 76 on the 15 similar edges
Ps
78, Squash-fold on existing 78 Pinch the lower edges of
creases, but flatten only the the squash-fold together and
upper halt collapse on existing creases
sô
80 Squasrfold
82 Repeat steps 78 - 81 88 Reverse-fold the 28 points 84 Rabbit-ear each of
on the three ather flaps at the bottom outward and
rabbit-ear each of them
87 Pacific Giant Red Sea Urchin
the 53 paints at the top outward and adjust all
81 points to point in all directions Then pinch all points to make them thinner
81, Petal-fold
85 Detail of 86 Like
a single point this Fold a rabbit
ear