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This here is the Trimaker I, a 3D printer.

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3D printers are machines
that allow us to make things,

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to build our own objects.

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I think 3D printers will change
the world in the next few years,

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they will change our lives.

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As a child I always liked
working with my hands.

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I liked to build my own toys.

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I remember how
the feeling of building my own toy

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was totally different
from having one that was bought.

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I used dad's tools for this,

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which were my inspiration.

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At the age of 6, I remember
electrocuting myself for the first time.

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I was fixing a small Christmas tree.

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It happened again when I was 14,
and it was more powerful.

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I remember I was fixing granddad's drill.

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I didn't notice I was barefoot.

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I plugged it in, and immediately
my body started shaking.

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I felt how the electricity
went through my hands,

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my body, then my feet,

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and I was thrown to the ground.

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Somebody helped me.

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After such a practical lesson,
my Italian granddad came and said:

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"Ma, bambino, siediti qui."

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"I am going to give you
the theoretical lesson."

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I can promise you I never forgot

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what the power wire
and a ground discharge were.

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Time passed

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and I kept building my own toys,

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but each time a bit more complex.

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A friend of mine, Dan Etenberg,
built this turbine.

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We loved getting together
to do this kind of crazy stuff.

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He calls and says: "Hey, Maxi,
listen: I finished the turbine,

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I finished solving that thing
we had to mill...

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I'm going to your granddad's!

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Can you imagine granddad's face

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when we told him we were putting
a turbine in the garden?

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Granddad shut himself in the kitchen.

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We were bringing a device this big,
that could turn at 130,000 rpm.,

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that needed protection
in case the blades went flying out

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and it also threw a 16-inch flame.
And the noise it made...

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I can't push it out of my mind...

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It was as if a Sky Harrier
was landing in granddad's garden.

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I think he might have thought that,
that a helicopter was landing.

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I asked Dan afterwards:
"Hey, Dan, what can we build now?

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How about building a laser?"

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We were good boys,
but we enjoyed these things.

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Of course, a laser beam.
We had to be very careful.

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If we touched that aluminum part
in the discharge tube...

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There were 30,000 volts going through it!

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But we liked these things
and we wanted to do what we enjoyed.

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That lab was like Frankenstein's.

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After some time I said,
among other things:

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"Well, I don't want to keep asking
for dad's tools,

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and this time I will build
my own stuff, with a milling machine."

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A milling machine is a Cartesian robot
that withdraws material

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from a plastic or wooden block
until it builds what you can see there

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which can be any kind of object.

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It was around 10 months of building
to obtain the object in 1 hour.

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We were just watching the machine work.

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There was an incredible intensity.

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But there was a question
I could not answer myself:

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Can one live off what's fun to do?

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Or are entertainment and work
like water and oil?

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Do they mix?

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Can you mix fun with business opportunity?

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This is how I started getting into
the subject of 3D printers.

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Because it was a technology
that kept me awake at night

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and that, additionally, I saw
as a possible business opportunity.

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But, I recall I started out saying

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I was here to tell you
about my first time, right?

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The first time I printed
with a 3D printer I made by myself.

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Let me introduce you: This is Marsi 1.

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Yes, it looks like
an ice-cream machine.

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But believe me, it was a 3D printer.

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My first time was disastrous.

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I tried for 3 months
and nothing happened, nothing at all.

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I remember I had already
spoken with investors,

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I was giving talks
at the University of Buenos Aires,

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telling everyone that I was building
a 3D printer that did not print

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and that the only thing it did was this.

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I wanted to do a bracelet,
all I got was that smashed thing.

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I wanted to do Star-Wars' Yoda,

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I got that fried egg you can see there.

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Every time that happened to me,
it felt like being stabbed in the chest.

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I went to bed very sad.

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Until one day, I decided
not to pay any attention to it any more.

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This story is 100% true.

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I would always stand there,
watching for two hours,

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and this would come out.

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This time I went
to the supermarket and left her.

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As if on purpose,
when I came back I found this.

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You don't know how I felt!

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I was literally jumping for joy.

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Imagine arriving and seeing
"Venus de Milo" hanging there.

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It was 2 x 2 x 3 cm,

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but to me, it was like touching heaven
with my hands.

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It improved, little by little.

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And we started printing other things.

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I am going to talk a bit
about the technology.

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Can you see that white pan?

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A photosensitive resin is placed there.

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And it is illuminated from beneath,
layer by layer,

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the level surfaces are projected

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until the morphology
one has programmed and designed is built.

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There you can see my favorite figure,
which is "The Clay Bottle."

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And over there, that green figure, is me.

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Don't tell, but I want to give it
to my girlfriend as a birthday present.

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Good idea?

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What we are building with now

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are different types of rubber
and wax components,

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we are printing in plastic,
different colours.

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Here you can see
the "Venus de Milo" keyring.

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That was the first.
It brings good luck, I hope.

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So you can see that not only
about the useless things I just showed you

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but this technology, nowadays,
is changing people's lives.

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That small girl had
parts of her body scanned.

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An exoskeleton was printed

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and it was able to alleviate
the mobility problem she had.

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Below that, you can see a jaw.

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That mandible was built
using selective laser melting technology

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with aluminum powder.

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It was created for an 83 year-old woman,
who can now move her jaw.

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This is Marina.

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She is my cousin.

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In 2006, she had a very serious accident,

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a car accident.

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The doctors weren't very optimistic.

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The truth is it shocked
the whole family very badly.

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She had multiple injuries of all kinds.

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One of the worst was a head injury.

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She had lost part
of the bone structure in her head.

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There were 2 options.

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One was to stick
to traditional treatments.

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It meant taking a kind of
bio-compatible coating texture

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and putting it in place
in an almost manual fashion,

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until the part of the skull
that was missing was covered.

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The second option

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was taking a CT scan

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and digitally building the cranium
directly from that scan.

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And afterwards, the part that was missing

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would be rebuilt in software
to be finally printed in 3D.

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They went with the second option.

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Today, Marina enjoys a splendid life,

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she has 2 children,
enjoys time with her family

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and has just run a marathon.

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I hope that what started out
as simply having fun,

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can help people in the future.

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This makes me think
it is possible to do what makes you happy,

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and that it's possible
to change the world,

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while feeling like it's the first time.

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Thank you.