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  • Kyle von Hasseln: This is a 3D printed dress.

  • The designer uses wearable, flexible plastic

  • to create incredible detail and volume in her clothes.

  • This is a 3D printed tracheal brace.

  • Doctors from the University of Michigan created custom support

  • for the airway of a baby who was born unable to breathe on his own,

  • Its made from bio-adsorbent plastic,

  • so it will disolve over time as his airway reforms around it.

  • And this is a 3D printed prosthetic leg.

  • The designer, Scott Summit uses resin and plastic and metal,

  • to craft tremendously personal designs.

  • They go way past the idea of just replacing a limb,

  • and become an expression of individuality.

  • These 3 projects are examples of the best thing about a 3D printer,

  • and that's really saying something

  • because there are a lot of amazing things about a 3D printer.

  • A 3D printer can make something very accurately.

  • It can make it very fast,

  • it can make it with very little material and very little energy,

  • and it can make it exactly when and where you need it.

  • But it can do more than that.

  • A 3D printer is more than a 3D photocopier,

  • at its best it does not copy,

  • it makes something that has never existed before.

  • So the dress, the airway brace, and the prosthetic leg,

  • the key to those innovations is that their authors saw the 3D printer

  • as more than a manufacturing device,

  • as more than a replicator.

  • They asked themselves,

  • "What can I do with this tool, that has never been possible before?"

  • We asked ourselves a similar question a couple of years ago,

  • we had promised to make our friend Chelsea a cake for her birthday.

  • And as the day approached, we went shopping

  • to get all the ingredients to bake it from scratch,

  • and we brought them home and unpacked all the groceries

  • in our tiny graduate studio apartment that we had just moved into.

  • And as we were standing there in the kitchen,

  • we suddenly realized, that we actually didn't own an oven.

  • (Laughter)

  • We didn't own an oven but we did own a 3D printer.

  • And so, naturally, we wondered,

  • "Would it be possible to just 3D print her a cake instead?"

  • And we tried, and we tried recipe after recipe,

  • and using every kind of sugar that we could find

  • mixed together in every ratio that we could think of,

  • and after months of that experimentation

  • that actually lasted well past her actual birthday,

  • we finally managed to 3D print Chelsea a tiny cupcake topper

  • that spelled her name in cursive sugar.

  • She loved it and we realized that

  • other people would probably love this too.

  • So when we graduated about a year ago, we founded the sugar lab,

  • a custom design firm for 3D printed sugar.

  • Using the same process that we had developed

  • for Chelsea's cupcake topper,

  • and that process is actually really simple at its core.

  • Its essentially just adding water to sugar.

  • So if you've ever made frosting, and left the bowl in the sink overnight,

  • you know that the next morning

  • the bowl is gonna be impossible to scrape out.

  • And thats because when you add water to sugar it solidifies,

  • we just add the water in a very precise way.

  • Liz von Hasseln: Here's how we do that.

  • We start with a digital,

  • 3 dimensional model of the object we'd like to 3d print in sugar.

  • We run that model through software that slices it into layers.

  • These layers will be fed to the 3d printer one at a time,

  • starting with the very bottom one.

  • When that happens the printer spreads out a very fine layer of sugar,

  • and it uses an inkjet printhead just like the one you would find

  • in your desktop 2D printer,

  • to paint that bottom most crosssection of the object,

  • onto the layer of sugar, only using water instead of ink.

  • Then the printer spreads another very fine layer of sugar

  • on top of the first one,

  • and it paints the next cross section with water.

  • And it repeats this often many thousands of times,

  • until every layer of the object has been printed,

  • one on top of the other,

  • from the very bottom layer, up to the very top layer.

  • At that point the digital model that a few hours earlier

  • we could only look at on our computer screen

  • has been printed layer by layer

  • into a physical, material sugar object.

  • This particular sugar object we designed as a cake topper,

  • which makes this essentially 3d printed frosting.

  • But you can tell right away that this frosting

  • is doing something different,

  • now the frosting can be structural

  • it can be sculptural,

  • it can be geometric and mathematically precise.

  • It can be intricately perforated,

  • or it can just look like a duck.

  • (Laughter)

  • This frosting can basically look like almost anything you can think of

  • and it can be used in as many ways.

  • So you can 3D print custom sugar party favors,

  • or crazy little curly sugar cubes for your coffee.

  • Or later in the day, you can print a sugar lattice

  • to complete a cocktail recipe.

  • Sugar, when it's 3D printed, can also start to really exceed

  • its usual roles of decoration and sweetening.

  • This is a wedding cake we designed with Charm City Cakes in Hollywood.

  • And you can see that once the sugar becomes this structural material,

  • it can start to define or even support the form of the cake itself.

  • In this case we decided to 3D print the actual cake stand in sugar,

  • in addition to the topper, and other decorations,

  • which is not something you can usually choose to do with frosting.

  • That's been the most exciting part for us,

  • expanding what's possible,

  • pushing the technology of 3D printing into a completely new genre,

  • and looking for what it can do there that couldn't be done before.

  • What's important to us

  • about the sugar parts we've shown you today,

  • isn't that they're beautiful, but that they were so recently impossible.

  • We hope you see them as an invitation, maybe even a challenge.

  • Take 3D printing and apply it somewhere else.

  • Bring it to a new design space, a new field, a new discipline.

  • Bring it somewhere that's important to you,

  • and see how it can expand what's possible there.

  • That's the best thing about a 3D printer,

  • you can use it to print something impossible.

  • Kyle and Liz: Thank you. (Applause)

Kyle von Hasseln: This is a 3D printed dress.

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TEDx】3D印刷のデザート:TEDxManhattanBeachでのリズとカイル・フォン・ハッセルン (【TEDx】3D printing dessert: Liz and Kyle von Hasseln at TEDxManhattanBeach)

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    Hhart Budha に公開 2021 年 01 月 14 日
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