Gas Pump, Origami
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Gas Pump
created/diagrammed by Alec Fehl 5/14/99-5/16/99
1] Precrease into 8ths.
Flip over.
2] Crease through only
three squares.
3] Add in valley folds.
Flip over.
enlarge...
4] Collapse on existing
creases.
5] Valley fold single ply
and turn tip inside out. You
will have to partially unfold
model to do this.
6] Valley one layer and squash
the end.
7] Swing down gas hose.
8] Valley to thin hose.
9] Swing hose
back up.
10] Repeat steps 6 - 10.
11] Crease.
12] More creases.
13] Pleat symmetrically.
The bottom mountain is new.
The other three folds are
existing creases.
14] Crease to re-emphasize.
15] Fold one panel behind. 16] Crease 45 .
17] Valley where creases
intersect edge underneath.
18] Unfold panel.
19] Flip over.
20] Enlarge.
21] Fold panel over while collapsing
pyramid. The inside will resemble
a water bomb base when through.
See next step for desired effect.
22] ...like this.
Unfold panel and
flip over.
23] Repeat steps 16-22
three more times.
24] Unfold pleats and
swing hose down.
25] Fold over three edges.
The tip will not lay flat.
27] Refold pleats. Flip over.
26] Rabbit ear hose and
swing back up.
28] Crease top diagonals.
Petal fold side. Repeat
on left.
A
C
B
D
29] Refold hidden water bomb
bases as you form a tall
open-ended box. Bring left
side over top of right side.
30] Continue to form box.
Tuck ridges A and B under
flaps C and D to almost
hold it together.
31] Collapse top on
existing creases. See
next step for finished
top view.
32] Nothing to do here,
but the top should lock
and look like this.
33] Fold bottom 5 edges underneath.
The front has two edges that will
overlap and lock the bottom.
Thin nozzle with valley fold.
34] Pinch and curl hose.
Form nozzle with reverse
folds.
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