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Formlabs: Leading the Future of Performance Products With Customized Manufacturing

June 28, 2019

Formlabs: Leading the Future of Performance Products With Customized Manufacturing

In 2017, New Balance began a partnership with Formlabs to develop a 3D printing production system to open innovation opportunities on both fronts, with unlimited design freedom to create performance-optimized structures, an avenue to affordably manufacture customized components at scale, and a new arena of material possibilities. 

This summer, the company takes a giant step forward in delivering on this vision with the announcement of TripleCell: a premium technology platform powered by Formlabs stereolithography (SLA) 3D printers and a completely new material, Rebound Resin.

“TripleCell is really on the leading edge of bringing New Balance domestic manufacturing into the digital age.”

Katy O’Brien, Engineering Manager, New Balance Manufacturing Innovation

Small-scale manufacturing is already underway in New Balance’s Lawrence, MA facility and the first TripleCell product, the limited edition 990S TripleCell shoe, is now shipping, with the FuelCell Echo with TripleCell forefoot following in fall 2019 and the first full-length high performance running product coming in 2020. 

Finding Customization Opportunities in a Complex Supply Chain

Shoes are inherently complex products. Footwear is a high inventory, high volume business that often still involves a lot of manual labor and craftsmanship. New Balance introduces thousands of designs a year, and a single model includes hundreds of SKUs of color and size combinations, with components made with different materials, tolerances, and tooling programs.

As the demand for customization grows, this only becomes more complicated. The modern consumer demands custom products that can be ordered from anywhere, from a variety of devices, and quickly delivered.

To date, most companies have only been able to offer highly customized products as one-offs, leveraging 3D printing to develop and manufacture highly customized athletic footwear for professional athletes. In 2013, the first athlete competed in a custom 3D printed shoe. Shortly after, we saw more firsts—in track, football, baseball, and so on.

Parallel to these developments, 3D printing technology was evolving. In 2012, Formlabs introduced the Form 1 with the goal of making powerful, reliable stereolithography (SLA) affordable, accessible, and scalable. The Form 2 followed in 2015, and users have since printed over 40 million parts. Now, the Form 3 and Form 3L open the door to further possibilities within 3D printed production, including large scale parts. 

Today, 3D printing is well on its way to making mass customization a reality for more businesses, with examples across industries paving the way, like the pilot of Gillette’s Razor Maker™ platform, which served as one of the first examples of direct-to-consumer, end-use 3D printed parts.

Designing a Shoe From the Inside Out, Faster Than Ever

In addition to collaborations with professional athletes, New Balance has used 3D printing for prototyping for quite a while. Today the company produces thousands of 3D printed prototypes each year. As the 3D printing market matured, they were watching.

“We saw innovation with 3D printers and materials and started to envision the future of how this could come together in consumer products,” Petrecca said. 

“When you’re able to use techniques like 3D printing to turn to more of an on-demand manufacturing model, that’s a game changer. There are advantages both for the consumer and for New Balance as a manufacturer. On the consumer side, the ability to design and what you can fabricate with printing is well beyond what we can do with molding. It really opens up a lot of opportunities for us to make better parts than we’re making now with foam and plastic.” 

The majority of the foam components in today’s footwear are manufactured through variations of injection or compression molding, which tremendously limits design possibilities. Transitioning to using 3D printing for both prototyping and production, however, has opened up new opportunities impossible with traditional manufacturing processes.

“What we could do to date is engineer the outside of the shoe and rely on the inherent properties of the material to provide all the performance benefits we’re looking for. Any degree of what you could consider customization is disparate pieces of foam glued or molded together, with a lot of assembly steps on the back end,” said New Balance Senior Additive Manufacturing Engineer Dan Dempsey. “Using additive manufacturing, we can essentially vary the lattice structure to really change localized properties inside of a single form, giving us the ability to engineer throughout the entire volume of the shoe; we can design a system from the inside out.”

 

Developing Rebound Resin and a Seamless 3D Printing Production System

When they started the project, the New Balance team knew they needed a very specific material that did not already exist within the additive industry, and a great partner to help bring the whole system to life. In 2017, the company announced a collaboration with Formlabs, bringing 3D printing technology to large-scale, Massachusetts-based footwear manufacturing.

Formlabs has since worked closely with New Balance from beginning to end. Teams from each company collaborated from preliminary R&D and iteration through hundreds of exploratory material formulations, to developing a production workflow—including custom software features, on-site support, and dedicated supply chain, to fully realizing the benefits of 3D printing with Rebound Resin.

“It all begins and ends with the properties you can get out of what you’re making. You can run the fastest printer in the world or have a million dollar printer, but that’s irrelevant if your material properties can’t withstand the application they’re intended for,” Dempsey said. 

New Balance and Formlabs developed a custom material exclusive to New Balance from the ground up to withstand all of the necessary manufacturing and end-use applications. The result is Rebound Resin. Designed to create springy, resilient lattice structures, the material has a much higher energy return, tear strength and elongation than any other Formlabs SLA material. 

“The TripleCell 3D printed components deliver more lively, spring-like cushioning than you’ve ever experienced in foam, with the ability to ultimately be produced on-demand in our own facilities in Massachusetts,” Petrecca said.

Formlabs worked closely with New Balance to develop a production system to bring TripleCell to life

Following a robust R&D program iterating through hundreds of exploratory material formulations to create Rebound Resin, Formlabs worked closely with New Balance to develop a production system to bring TripleCell to life.

Pushing the Boundaries of Footwear Design and Manufacturing

The TripleCell collaboration marks another milestone in 3D printing applications expanding from prototyping into production at scale. 

This cutting-edge digitally manufactured technology is now scaling exclusively within New Balance factories in the US. Next year, New Balance plans to scale up production to over 10,000 pairs per year of TripleCell products and continue growth within their manufacturing facilities.

Moving forward, TripleCell provides the foundation for leveraging unique athlete data and performance insights to create custom footwear in limitless combinations, and produce it on-demand, reducing development timelines and condensing the delivery from concept to consumer.

“Where we are now is just a testament to the work we’ve done in-house and the external partnership with Formlabs that have really been able to move our program forward,” Petrecca said. “We’ve demonstrated that we are able to scale up additive manufacturing and have it make sense for a production environment. As far as where we go next, the sky is really the limit.

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