In the Details: Knurled Welding, and How It Makes for Some Seriously Tough Bike Bags

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Like a lot of successful entrepreneurial ventures, Chrome Industries was born of out dissatisfaction. Its founders were a group of Boulder, Colorado, cyclists who couldn’t find a messenger bag that met their standards—so they started making their own, using military-grade materials and salvaged seatbelt buckles. Now based in San Francisco, Chrome has been selling those messenger bags for almost 20 years, alongside a growing collection of similarly tough backpacks, apparel and other gear.

The latest addition to that collection is a line of what Chrome calls “knurled welded waterproof rolltops,” released two weeks ago. The four bike bags (two backpacks, a front-rack duffle, and a saddle bag) sport roll-top closures and distinctive exterior seams with a nubby texture—evidence of that “knurled welded” technique, which the company says creates superior durability with very little weight.

So how does knurled welding work? Knurling usually refers to a surface treatment used on wrenches and other metal tools; in those cases, it creates a raised pattern that provides better grip. In knurled welding, that raised pattern is printed on both sides of the tool used to RF-weld pieces of fabric together. (Envision two waffle irons coming together.) This creates more surface area along the seams, which equals greater strength.

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In the Details: Making a 3D-Printed Product Line That Doesn’t Look Like It Was 3D-Printed

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While desktop 3D printers have made rapid prototyping at home as easy as the push of a button, that accessibility comes at a price—a much lower level of quality than with traditional manufacturing methods. As a result, desktop 3D printing is still not a viable option for making finished products. At least, that’s the general assumption—one that the New York-based Italian designers Barbara Busatta and Dario Buzzini hope to challenge with their Machine Series, a line of containers that are ready for use hot off the printer.

Busatta and Buzzini’s collaboration was born out of a promise to do a project together each year under the studio name ICOSAEDRO, each time focusing on a specific material or craft as part of a joint effort to learn a new methodology. For their inaugural effort, Buzzini, a design director at IDEO, said that he and Busatta, a freelance art director, were drawn to the “artisanal process” of Fused Deposition Modeling (FDM), a 3D-printing technology that involves melting plastic filament and extruding it layer-on-layer to build a form.

Icosaedro-MachineSeries-5.jpgThe Machine Series includes five containers with lids. There is a black version in three different shapes (top) and red and yellow versions (above).

Until now, FDM has not exactly been a fount of high-end product design. “FDM nowadays is a synonym for tchotchkes and miniatures for Yoda busts,” Buzzini says. But he and Busatta felt that there was an opportunity to bring a new level of craft to an imperfect technique, noting that “it felt like the right starting point to express our point of view on what could be a way to bring craftsmanship into the future.”

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In the Details: How to Transform a 220-Pound Block of Granite Into a Lamp Shade

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When choosing materials for a delicate hanging light, granite might not be your first choice. Not so for the Spanish designer André Simón Soneira, who decided to use the weighty material to create MIKA 350, a lamp that is just as beautiful to behold as it was challenging to make.

With this project, Soneira wanted to create a product that spoke to his identity as a designer, resonating with his traditions and heritage. Soneira hails from a region of northwest Spain called Galicia, known for its granite repositories. With strong Celtic influences, Galicia has a long tradition of mining and processing granite for different uses and has many rare types, including Pink Porriño, Gray Mondariz and Silvestre. “Galicia and its cities smell like stone,” Soneira says. “When it’s raining, the smell invades every street. … If Galicia were a lamp, it would be MIKA 350.”

AndreSimon-GraniteLamp-2.jpgSoneira (center) with the lamp-shade craftsman, Esteban (left), and a colleague from Soneira’s studio. All photos by Lino Escuris.

A look at the production process behind MIKA 350

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In the Details: Building a Tip Jar for the Credit Card Era

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As people get more and more used to paying for small transactions with credit cards, one group in particular seems to be losing out—baristas. At least that’s what Ryder Kessler noticed in 2008 while using plastic at a favorite coffee shop with a noticeably empty tip jar. A (miserable) barista explained that the rise of credit card payments had meant the decline of cash tips. “That struck me as a huge problem for everyone involved,” Kessler says. “The employees were working just as hard and making less money, the store was losing out on incentives for good service, and customers like me who liked the convenience of paying with plastic had no way to tip. I thought that the simplicity of a cash tip jar—just drop your dollar bill in—should have a credit card equivalent. That’s how the idea for DipJar was born.”

DipJar is exactly what it sounds like, a small aluminum jar with a built-in credit card reader that deducts one dollar per swipe. But realizing the simple device has taken several years. After graduating from Columbia University with a master’s in English, Kessler let the idea for DipJar germinate in the back of his mind for a few years as he took jobs at start-ups and gleaned knowledge in how to build companies and ship products. Only then did he set about bringing his idea to production. Skimming websites, Kessler found the portfolio of Simon Enever, an industrial designer based in New York whose work matched the mental image Kessler had for the product. [Ed. Note: We’ve covered Enever’s work before, most recently in an in-depth case study about designing a better toothbrush.] Together, they worked through various ideas for the design until they felt confident putting it into production.

InTheDetails-DipJar-2.jpgThe design evolution, from sketch to the first-generation unit now being tested in the field.

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In the Details: Providing Some ‘Torque Support’ for Troubled Knees

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Any athlete who has had trouble with joint and muscle pain knows the value of getting support where it’s needed most. For those athletes’ whose Achilles’ heel is their knee (so to speak), the sports-gear brand Opedix has recently developed a line of tights that promise to provide a new level of assistance to that frequently mucked-up joint.

Called KNEE-Tec, the tights aren’t the first to use Opedix’s patented knee-support technology, but they take it a step further with a new tension system developed by Dr. Michael Decker and his colleague, Mike Torry. Decker’s design uses a combination of fabric tensions to push and pull on the knee joints to create a “kinetic chain” of pressure, a setup that the company has dubbed Torque Reforming Systems.

The secret to the Torque Reforming Systems lies in its non-stretch banding and careful placement of different microfiber fabrics across 19 panels that pull and tug against each other to create tension and deliver support, without compromising the banding’s integrity. “We wanted a balance of elasticities to do the work for the product, keeping the non-stretch banding as tense as possible without stretching,” Decker says. The non-stretch bands are placed strategically between the various patches to offer corrective control and keep the legs in what is known as a “neutral state.”

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In the Details: The 3D-Veneer Technology Behind Tadao Ando’s Dream Chair

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At first glance, the Dream Chair looks like a concept, with impossible curves and a seemingly precarious structure that appears as if it could only exist in a 3D rendering. Yet the Danish manufacturer Carl Hansen & Søn took Tadao Ando’s dream and made it reality with a chair that stands as a feat of both manufacturing and fantasy.

The project originated with Carl Hansen & Søn (CHS). Looking to create a tribute to the great Danish furniture designer Hans Wegner, CHS approached Ando to develop a design for a lounge chair. “I have been an admirer of Wegner’s craftsmanship for many years,” the Pritzker Prize–winning Japanese architect said in a press release. “This was new to me, as in the past I have been used to only selecting furniture for the buildings I have created over the years.”

During their first meeting in Japan, CHS informed Ando of some of the restrictions of working with wood and veneer, which he wrote in his memo book, and then waited for him to bring back his first concepts. “When we saw the first sketches and drawings, we knew that to make this chair would be one of the biggest challenges that we have ever faced in Carl Hansen & Søn,” says Melissa Shelton, CHS’s director of marketing and communication. “Not only was the chair large, but the bending of the veneer was designed beyond what had ever been made.”

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In the Details: An Unusual Wireless Speaker, in More Ways Than One

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Bang & Olufsen’s new BeoPlay A9 wireless speaker is unusual in a couple of respects. First, there’s its strange saucer-like form, with a 2.3-foot-diameter disc perched on a wooden tripod. But perhaps even more unorthodox is its development story, as told to me recently by the Danish designer Øivind Alexander Slaatto.

A9 marks the first manufactured product for Slaatto; previously, he “didn’t even have a single toothpick in production.” Surviving in Copenhagen as a tuba performer and a caregiver, Slaatto had to borrow the money (and a shirt) to cross Denmark and knock on the door of Bang & Olufsen’s headquarters, arriving unannounced with his portfolio in hand. Surprisingly, B&O agreed to meet with him—and although the company rejected most of the work in his portfolio, it nevertheless saw promise in his ideas.

B&O decided to let Slaatto work in its studio with then head of design Flemming Møller Pedersen, with whom Slaatto completed the design proposal for what eventually became A9. “The idea only took a few days to come up with, but to turn it into reality took several months,” Slaatto says. “I was involved all the way to the final production. I think it was worth the hard work.”

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In the Details: Building a Bluetooth-Controlled LED Lantern for Everyday Use

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In a world where almost everything can be controlled with the click of a button (or a clap of your hands), even the kerosene lantern is getting an upgrade with Vela, a portable, Bluetooth-enabled lamp that can be controlled using your smartphone.

Following a family camping trip, Joe VanFaasen, a designer at the Holland, Michigan-based firm Twisthink, found himself unsatisfied with the lantern options currently on the market. “What I found were the classic Coleman kerosene lanterns, which I admire, but they present a fire and gas hazard, especially with two little boys and a little girl running around,” VanFaasen says. Although LED versions proved more convenient and safer, VanFaasen felt that they lacked the appropriate aesthetic and often gave off a cold, bluish light. “They all felt like either overly commoditized knock-offs or hyper-tactical backcountry-type lights,” he says.

Recognizing a need and looking to fill a gap in the market, VanFaasen set about designing the perfect portable light for any scenario not only camping but everyday household use as well. And he wondered how he could incorporate “smart” technology to set it apart from other portable LEDs currently available.

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In the Details: Converting the Sleeping Bag into an Everyday Household Blanket

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Early this year, on a surf-and-ski trip gone awry, the San Franciso–based designers Wylie Robinson and Nick Polinko found themselves stranded in their car overnight in sub-zero temperatures. Luckily, they had sleeping bags, which not only kept them warm until they could get their car towed but gave them an idea for a new product—a high-performance blanket for the home that they dubbed the Rumpl and launched on Kickstarter this month.

“We felt that the soft, warm, durable materials used in our bags had the potential for many uses other than camping or super-technical apparel,” Polinko says. “We realized the everyday blanket was severely lacking a modern update, and the boring style options at local home supply mega-stores were dull and repetitive.” Looking at the options available, they noticed that everything seemed to be made for either college students or Martha Stewart. With a shared spite for dealing with clumsy duvet covers and an affinity for the feel of technical materials, the two knew they could develop something better. “We set out to solve a problem that we had, and found out that lots of other people felt the same way,” Robinson says.

But realizing their vision was hardly a straightforward task. Robinson and Polinko knew exactly what kind of material they wanted—a durable, water-resistant coated nylon like the kind found in high-end jackets and sleeping bags. Their first step was to source the material in bulk, a surprisingly challenging task. With backgrounds in product design and graphic/environmental design, respectively, Polinko and Robinson had a lot of experience building new products from scratch, but never in the soft-goods department. To fill that gap, they brought in an apparel designer.

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In the Details: The Art of Japanese Knife Design

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If your holiday shopping list includes any serious home cooks, there is probably nothing you can get them that will be as useful, or as appreciated, as a high-quality knife. But buying chef’s knives is hardly a straightforward matter—indeed, the world of knife-making is its own complicated and fascinating design niche.

Recently, I set out to learn more about the design of Japanese knives, which have become increasingly widely available in the United States through brands like Shun and Global. [Editor’s Note: Our own Hand-Eye Supply offers a few options from the more obscure Midori Hamano.] Not surprisingly, Japanese knife manufacturers take their craft very seriously. Shun, for instance, describes its blade as “a way of life”—and the name Shun (rhymes with “moon”) is derived from a Japanese word that refers to the moment when a piece of fruit is at its sweetest, the peak of perfection.

This perfectionist approach trickles down to every aspect of the Japanese knife manufacturing process, which traces its roots back to the blade-making tradition of ancient samurai swords. Companies like Shun and Global pride themselves in the fact that none of their knives leave the factory untouched by human hands, as the final balancing process requires a myriad of hand-working techniques by skilled craftsmen to achieve the ideal weight.

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Weight is one of the key areas where Eastern- and Western-styles knives differ. Eastern knives tend to be balanced with the weight in the blade, allowing for quick and easy chopping with no additional pressure. The Chinese cleaver is an excellent example of this, having a rectangular blade and a slight curve for easily mincing and dicing food using only a slight rocking motion. Western knives, more often, are neutral-balanced, meaning that the center of gravity exists at the “pinch point,” or where the blade meets the bolster. This allows the chef to pinch the knife between the blade and the handle.

“Think of how a sushi chef works,” says Tommie Lucas, the product development manager in the housewares division of Kai USA Ltd., the Stateside division of Kai Group, which manufacturers Shun cutlery. “They swiftly chop tons of fish and vegetables into clean, tiny pieces. That cut needs to be as seamless as possible and, since it’s so repetitive, the motion needs to be easy and effortless.”

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