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rigidfold

Rigidfold is a method of origami that involves folding paper into complex shapes using a series of precise, rigid movements. Unlike traditional origami, which often relies on more flexible folds, rigidfold emphasizes the use of straight lines and sharp creases to create intricate designs. This technique was popularized by Robert Lang, an American mathematician and origami artist, who has extensively documented and promoted rigidfolding in his books and online resources.

The key principle of rigidfold is the use of "rigid units," which are sections of the paper

Rigidfolding is particularly well-suited for creating models with sharp edges and angles, such as polyhedra, mechanical

Rigidfold has gained popularity among origami enthusiasts and has been featured in various exhibitions and competitions.

that
maintain
their
shape
and
do
not
bend
or
flex.
These
units
are
created
by
folding
the
paper
along
straight
lines
and
then
unfolding
it
to
reveal
the
rigid
structure.
By
combining
multiple
rigid
units,
complex
shapes
can
be
constructed
with
a
high
degree
of
precision.
devices,
and
architectural
structures.
The
method
requires
a
good
understanding
of
geometry
and
spatial
reasoning,
as
well
as
a
steady
hand
and
a
sharp
crease
tool
for
making
clean
folds.
It
has
also
inspired
the
development
of
new
folding
techniques
and
the
creation
of
innovative
origami
designs.
Despite
its
complexity,
rigidfold
offers
a
rewarding
challenge
for
those
interested
in
exploring
the
boundaries
of
paper
folding.