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Description
This is a demonstration of the new Flexy-Hand 2, a prosthetic hand that can be entirely 3D printed, except for some cords and velcro. Designed by Steve Wood of Gyrobot, Ltd.
For more information, please visit:
http://gyrobot.weebly.com
http://3duniverse.org
http://shop3duniverse.com
http://enablingthefuture.org
Intro and Closing Music:
http://www.pacdv.com/sounds/
A
A
This
is
one
of
the
popular
models
used
within
the
enable
volunteer
community,
and
the
main
difference
is
that
the
cyborg
beast
uses
two
sets
of
of
cords
one
non
flexible
running
along
the
bottom
of
the
fingers,
which
causes
them
to
contract
when
the
wrist
is
bent
and
another
version.
Another
set
of
cords,
that's
flexible.
That
runs
along
the
top
of
the
fingers,
which
causes
them
to
return
to
their
normal
position.
Open
position
when
that
wrist
is
unbent.
A
The
difference
with
the
flexi
hand
and
the
flexi
hand,
too,
is
the
incorporation
of
flexible
filament
for
these
joints
in
here,
and
those
joints
take
the
place
of
those
flexible
tendon
lines
so
that
now
you
only
need
one
set
of
cords
which
you
can
see
running
along
inside
those
channels
here
and
those
non
flexible
cords.
When
again,
the
same
principle
when
the
wrist
is
bent
causes
those
fingers
to
flex
in-
and
in
this
case,
when
the
tension
is
released,
it's
the
flexible,
filament
joints
that
causes
the
fingers
to
return
to
their
natural
open
position.
A
A
A
We
have
a
velcro
enclosure
inside
the
palm
area
and
that's
where
the
poem
would
go
and
that's
important,
because
that's
what
allows
you
to
pull
down
on
the
hand
when
the
wrist
is
bent
which
causes
everything
to
activate.
So
there
is
an
option
to
use
a
little
bit
of
flexible
filament.
That's
in
there
to
attach
the
velcro
I
went
for
what
I
think
is
a
bit
of
a
stronger
approach
by
drilling
holes
through
to
use
these
Chicago
screws.
So
I've
got
those
attached.
I'll
show
you
inside
here.
A
So
you
can
take
just
one
often
see
there's
the
Chicago
screws
coming
through
the
other
side.
Of
course,
the
soft
side
of
the
velcro
is
facing
the
skin,
and
then
this
other
piece
is
laid
in
here
to
cover
those
Chicago
screws
and
now
that
those
are
covered
we
can
simply
close
just
around
and
this
folds
down
over
and
then
you
have
a
little
sort
of
glove
to
hold
the
poem
and
that's
what
allows
us
to
then
bend
the
hand
forward
causing
the
fingers
to
grasp.
A
So,
obviously,
it's
a
beautiful
design,
as
you
can
see
it
is
it's
modeled
after
a
real
human
hand,
and
therefore
it
looks
much
more
realistic
and
the
gripping
motion
is
nice.
I
opted
to
use
the
non
flexible
cords
as
I
mentioned
now,
you
can
use
a
flexible
type
of
cord
and
that
will
result
in
a
bit
more
of
an
adaptive
grip.
A
So,
for
example,
if
you
want
to
be
picking
up
eggs
and
things
like
that,
where
you
need
the
fingers
to
sort
of
close
in
a
variable
manner
based
on
the
geometries
of
the
object,
you
might
explore
using
flexible
cables
or
flexible
filament
for
these.
For
these
cords
instead
I'm
using
a
what
is
this
a
I
think
a
50-pound
fishing
50-pound
test
fishing
line?
That's
plenty
strong
for
the
test
hand
and
results
in
sort
of
a
stronger
grip.
A
You
don't
have
that
variable
grasp,
but
it
allows
you
to,
for
example,
pick
up
heavier
objects
and
grip
with
with
more
strength.
Let's
see
if
we
can
just
yeah
and
just
pick
up
objects
pretty
effectively.
So
you
don't
really
have
anything
else
here.
Here's
my
one
of
my
little
owl
pieces
that
I
printed.