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Duplicate Keys like Secret Agents


today our video is sponsored by our DN
in today’s video we’re trying a spy
movie trick to see if we can make an
impression of a key in play and then
make our own copy based on that
have you ever seen a movie where someone
makes a copy of a key by pressing it
into clay and then having their own
version of the key later I’ve heard of
I’m pretty sure I’ve seen that a movie
too and we have a common request from
YouTube user
purple PewDiePie asking if we can try
casting a gallium key in sand here’s the
basic idea
we’ll take a key that opens a padlock I
make a mold using some clay and then use
so gallium to cast a copy of our own
purple PewDiePie we want to try this
idea although we are going to change it
up a little bit instead of using sand
like we’ve used for casting some stuff
in the past we’re gonna try using an
oil-based clay clay you’re gonna get
much better resolution when we’re trying
to cast that key we need all of those
fine details and all of those teeth clay
is gonna give us what we need sand can
be fairly fine resolution but clay is
made from just the absolute smallest
finest silt like particles and so this
is gonna get us like a really accurate
result and if we want a working key and
I think we need the best detail we’ve
got a treasure chest
it has a lock on it and we have a key so
I mean we can already get inside but the
point is we want to see what would
happen if like in movies you only have a
couple of seconds maybe you managed to
pick some of this pocket or something
you have there keychain you have that
key for just a minute just how long do
you need to have their key before you
can take an impression of it and then
make your own copy later this is an
oil-based sculpting clay and it does a
really good job of picking up details
but it’s also very rigid to the point
where it’s actually kind of hard to get
an impression in it right now it needs
to be warmed up before it’s soft enough
that we can do stuff with it
the easiest way to do that toss on the
microwave now if this were water-based
clay first off you won’t want to be
doing this usually it’s a coarser grit
but also you can’t put it in the
microwave it would not really dry it
kind of explodes don’t do that
oil-based clay this is a really good way
of warming it up just don’t get it too
hot that’s so much better
miss Kyushu completely squishes apart in
your hands that’s what we’re looking for
we’re good to go we’re trying now to get
a nice flat smooth surface on one side
of the clay that’s gonna help us get a
better mold although we are just kind of
Smashing it a lot so it may or may not
make too much of a difference once we’ve
got the key cast we’re gonna need a way
to fill it and with some kinds of metal
you can just pour it in but he doesn’t
leave a lot of space so we’re probably
gonna want something that can force the
metal down into the mold and my thought
is that we can use this little plastic
dosing syringe will suck up the liquid
Gallion so I think we first need to take
our little syringe here and mold a spot
for it into the clay and then we’ll line
up the key we’re gonna be pressing these
two pieces of clay together but if we
normally just take two pieces of clay
and press them together it sort of just
becomes one piece of clay it doesn’t
like to come back apart really easy way
to separate that it’s just using some
baby powder will sprinkle it over the
surface of the clay then when we press
our pieces back together we can pull
now we’ve got our syringe marking that’s
where we’re gonna be able to put our
dosing syringe in and inject the metal
right into it
now times the key just to make sure
though let’s reapply the baby go to bed
I’m gonna line the key up so that the
top of it intersects with where the
syringe will be that way we should have
pretty well wind up and now go for it
just smoosh it you don’t want it to slip
at all in fact if we want to stop the
slipping a little bit we can just take
some of the edges just pinch them
together a little bit keep it from
sliding all right
so we’ve got this as pressed in as well
form this we can without it slipping
anywhere so the clay is still so soft
its malleable so if we were to peel
these apart that would still warp so
what we want to do is we want to make
this play just as hard as it was before
[Music]
should cool down pretty quick – Apple
[Music]
I made these little score lines on the
side and hopefully we’ll be able to use
those to line up and back up but before
we put it back together and try and fill
with metal there’s another step we need
to take if I try and inject the metal
right into this it’s just not gonna go
anywhere because the air won’t have any
way to get out so I’m going to use a
knife and carve just a little air
channel hopefully that will let all of
our gallium get out and now to help hold
everything together and to keep gallium
from leaking out and just pinch closed
all of the clay gaps there’s a good
chance we’ll get a little bit of
flashing but this shouldn’t minimize it
flashing is when you get the casting
material leaving the edges that are
supposed to be defined by the mold I
want to be able to squish the clay back
down but if I press in the middle it’s
just gonna collapse the key and you’ll
never get anything usable out of it
we’ve got our gallium that’s still
liquid but it’s not very warm like at
this point it’s probably about on the
point of turning back in fact we’ve
started getting some crystals which is
good because it means it should solidify
now we’re gonna do is just put this back
in ice water and let it cool down well
Nate waits for the gallium to cool down
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from the browsing cat pictures this
whole time yeah
there’s definitely it sure does look
mostly like a key we did gets from
flashing this right here is what I was
talking about that’s flashing it’s when
it just expands beyond where it’s
supposed to but we might be able to get
we have a key shape and it’s really not
bad but I don’t think it’s clean enough
open the lock yeah there’s just there’s
little bits of flashing and just parts
sticking out and I think we just clean
it up with file a little bit we’ll get a
[Music]
okay I think ready for tests think we’re
good
here goes he fits went in lock is popped
with a gallium key nuts it it twisted it
actually bent but he is just very
slightly corkscrewed good he
straightened wonder if it’s just like
getting too warm and put it back in this
way you can do it oh oh oh my god it is
done before but we did it we got a few
openings with this key but I think it
has had it so can you
you can cast a key out of gallium making
the mold of it if you had clay you could
smooch the key into the mold really
quick you need some baby powder too to
keep it from getting ruined but we also
found that it helped a lot to just throw
it in the ice water so as you’re peeling
it apart it didn’t completely deform
two or three minutes tops I mean that’s
maybe longer than you would ideally want
if you were a spy stealing keep
something from someone but so it works
it works we didn’t want to try that with
a car because of this broke off in a
car’s ignition it’s kind of a bigger
problem if it breaks off inside the
master lock yeah not at the end of the
world probably can just melt it right
out
Nate hey I read that for him he is still
in the lock it’s mostly still in the lot
it’s a kind of random kit Wow
I wanted one of these thanks again to
purple PewDiePie for this awesome idea
don’t forget to check your inbox we’re
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