For the first four years, the company’s attempts ended only in failure. Three-dimensional printing materials—the actual polymers Adidas NMD Dames used by the machine—are rigid, and therefore brittle under pressure. Not the ideal choice for an athletic shoe. What’s more, 3D printing is notoriously slow. Traditional EVA foam midsoles, produced through injection molding, can be made in 20 minutes. Printing the same design nanometer by nanometer would take hours.But Adidas designers made significant strides when it came to shape, going deep into the physics of lattice structures and exploring how their various geometries—too complicated to draw by hand or even model inside traditional computer drafting programs—could be woven by algorithm into a high-performance Nike Air Max Command Femme construction. “I remember the first time I saw one,” Gaudio says of one of the Adidas Superstar Dámské early, stiff 3D prototypes rendered in lattice. “Someone pulled it out of a bag, and I was like, That’s really cool. I understood immediately the possibility of it.”Eventually, they created a more functional material as well, using a polymer powder resembling the one the company uses for its own Boost line. Adidas 3D–manufactured a few hundred pairs of shoes with these new soles, under the name 3D Runner, but had trouble with scale. Existing 3D–printing technologies could build only six midsoles at a time, and that process took 8 to 10 hours. Then the midsoles had to sit for another eight hours cooling in the machine before being cracked out of a powder block—much like salt-roasted fish—and hand-dusted of microparticles. The 3D Runner debuted in December 20www.rnejranowski.co.uk 16 for $333 to eager collectors, but the shoes cost significantly more for Adidas ZX Flux Dames Adidas to produce and were sold at a loss.
At a St. Louis trade show in 2016, Adidas’s Future engineering director Marco Kormann met Phil DeSimone, the head of business development for a 3D–printing startup called Carbon, which was already in talks with several of Adidas’s competitors. Carbon had discovered a way to print with liquid instead of powder. Adidas designers brought hockey-puck-shaped samples of the printed substance back to their lab in Germany and smashed it with machines to test its feasibility underfoot. “We were immediately impressed,” says Adidas’s Future VP Gerd Manz. “You see a lot of data claims by companies, and they fall down when you test them.”This material lacked the “energy return” of a traditional athletic shoe, they discovered,Nike Air Max 90 Dames Grijs and it would perform poorly in extreme temperatures, but Carbon’s printing Nike Air Max 90 Dámské Bílé methodology had the potential to make a beautiful shoe out of smooth, translucent webs. And it was undeniably fast. Instead of stacking tiny bits of material layer by layer, Carbon’s system grows products from a pool of liquid resin, much like the milky birth of a Westworld android.Adidas and Carbon made an agreement in the second half of 2016: Carbon could take on other, noncompetitive contracts, such as in the automotive industry.Without merging, the two entities could still learn from each other.