GBX Case Study: Coffee Picking Baskets in Puerto Rico

With the development of our Gigabot X pellet printer came our engineers’ need to trial it in different applications and settings. We settled on Sandra Farms – the coffee farm at the center of our latest story about chocolate cigar molds – as a case study to determine the practicality of using recycled plastic to create real-world, functional objects.

“Good coffee is picked by hand.” Israel Gonzalez is a second-generation coffee farmer who started Sandra Farms in the early 90’s. He explains that coffee pickers around the world are historically underpaid, typically placed at the bottom of the coffee farming ladder.

Sandra Farms is trying to break this mold.

“The main focus here is trying to use Sandra Farms as a model. We want to support an agricultural, agrarian way of life in Puerto Rico.” Domenico Celli came to the farm as part of a graduate school project with a focus on implementing sustainability practices, and several years later finds himself still working with them and more attached to their mission of specialty agriculture. “The people that we have in mind are the farm workers and families and communities here in some of the most rural and remote areas of Puerto Rico that have traditionally been dependent on agriculture as their main source of income, and culturally, their way of life.”

Sandra Farms is trying to set an example for other farms, paying their pickers two to three times the average in Puerto Rico. Says Celli, “That is because above all, we are committed to making this a viable way of life for these people and their families.”

The basket opportunity

In working with Gonzalez and Celli on their chocolate cigar mold concept, a potential case study opportunity for Gigabot X presented itself.

“Most agricultural workers in Puerto Rico traditionally are the forgotten people here, and that’s reinforced through what they use to pick coffee with,” explains Celli, “which is mostly just fertilizer bags, or really uncomfortable, five-gallon buckets that are not at all made for coffee picking.”

“The five-gallon plastic bucket…” Gonzalez shows one off that has been strung with a simple rope handle. “It’s functional, it works, cheap – but not ideal, not ergonomic.”

Our local team in Puerto Rico took the opportunity to investigate 3D printed solutions that could provide a superior substitute for the farm’s pickers, with the ultimate goal of using Gigabot X to print a design using recycled plastic.

The choice of an application in Puerto Rico was no accident. Gigabot X has the ability to print from pelletized plastic as well as recycled plastic regrind; our team saw immense potential for a machine that could create a closed-loop system on an island, using waste as input material to create functional objects that may be expensive to import.

“Unfortunately, our recycling systems here in Puerto Rico are very outdated, not very efficient, and in reality, not much – if anything at all – is recycled,” says Celli. “A much better alternative would be able to actually have a way to repurpose and use that waste, and know that it’s going to some sort of practical application.”

The design process

Our San Juan-based designer Alessandra Montaño began the process with a CAD sketch. “The design process was very interactive,” she recounts.

Over the course of the project, she visited the farm four times, working with Gonzalez in person and talking directly with workers trialing the design in the fields. “I did one prototype, sent it to them, they made some changes like widening the design, changing the height of the basket…”

re:3D Mechanical Engineer Helen Little describes the trial and error process of testing, and the balance of modifying the basket design for the specific application while understanding the unique nature of a pellet printer. “We wanted to focus on quick production and cheaper cost-per-unit, so we chose to use a larger nozzle,” Little explains. “But there are many issues that come with that: a lot of oozing, lower quality prints…So we had to do a lot of optimization of print settings to get a higher-quality print.”

Little decided to experiment with printing in vase mode, which involves extruding in a continuous stream rather than a lot of stopping points where the nozzle has the opportunity to ooze plastic. “For that, we had to actually redesign the part itself so that the perimeter was only one layer thick,” she says.

Together, Little and Montaño incorporated user feedback from Sandra Farms into incremental tweaks to the design and new prototypes. They increased the basket depth to allow for a larger haul to be carried at one time, refined the shape to better hug the wearer’s waist, and added a brim to which a picker could attach shoulder straps.

“The way that a part is designed and printed has a huge effect on how long it takes to print, how much material it is, and at the end of the day, the bottom line for the cost,” explains Little. “I think it’s really important to get these real-world case studies and get that user feedback so that we can assess how viable of a solution this is for them and how much we can help improve over the current solution they’re using, using Gigabot X, 3D printing, and recycled materials.”

By the culmination of the testing process there had been twelve iterations of the basket, with the final design clocking in at around three and a half hours of print time.

Putting it to the test in the field

The crescent moon design on which they settled curves around the front of the waist, with a wide profile so a picker’s hands don’t have to travel far to drop in coffee cherries. It’s manageable enough to strap over one’s shoulders and carry through the field, yet sturdy enough to haul over fifteen pounds of coffee.

“We had wondered whether they could take the beating on the job, at the farm. ‘Can the bottom hold?’” Gonzalez initially pondered. “Yeah, they do,” he smiles. “Very well.”

Explains Celli, “The way that we designed them with re:3D was so that the opening would be wide so that a picker going through the field on uneven terrain is able to quickly pick coffee and kind of dump it into the bucket without it falling.”

He recounts the difficulties that came with the old-school fertilizer sack picking method. “It’s hard to keep it open with one hand, put coffee into it in the other, and then be efficient in a day where you’re trying to optimize how quickly you can get through the fields.” Seasonal coffee pickers, Celli explains, are paid by the pound. A vessel that allows for faster picking and movement through a field – not to mention fewer coffee cherries dropped – equals more money in a picker’s pocket. 

The comfort of having the basket contour to the hip is an obvious added bonus, Celli continues, allowing workers to pick more comfortably and later into the day.

There were more unforeseen positives of the custom basket design which Gonzalez and Celli didn’t fully comprehend before embarking on the project with re:3D.

“The reaction of such joy and excitement from the coffee pickers seeing these baskets that were actually made for them and thoughtfully designed to be comfortable for them was amazing to see,” recounts Celli.

The impact on the pickers’ morale was an unexpected and uplifting side effect of the project for both Celli and Gonzalez. They seemed unaccustomed and touched to be the focus of a project with a specific goal of creating a product to make their job easier and more comfortable.

The joy in the fields was visibly apparent, with pickers jockeying to get a chance with the new baskets: a promising sign for both the basket project and Sandra Farms’ own internal case study of running a sustainable, ethical farm prioritizing workers’ livelihoods.

In the meantime, both Gigabot X research and Sandra Farms’ exploration into sustainability continues. 

This project was made possible thanks to the support of the Puerto Rico Science, Technology & Research Trust and the National Science Foundation, who helped fund our research into Gigabot X.

Morgan Hamel

Blog Post Author

Designing Chocolate Molds for a Puerto Rican Farm

Nestled in the green mountains of Adjuntas, Puerto Rico – about a two hour, winding drive from San Juan – is a boutique coffee grower by the name of Sandra Farms.

Owner Israel Gonzalez grew up on a coffee farm in Oriente, Cuba, a childhood that greatly influenced his ambition to carry on the tradition. At 15 years of age he moved to New York City. The next several decades in the States were spent completing undergrad and grad school, meeting his future wife and farm namesake, Sandra, and starting a family. Throughout, the dream of a farm remained, a plan that was ultimately put into action in Puerto Rico in the early ‘90s.

The setting is idyllic. “It is beautiful, I know,” Gonzalez muses. “But you know, some people don’t like living out here. They’d rather have Fifth Avenue – which is wonderful, I love Manhattan – but I’d rather be here, of course.”

It was nearly three years ago that re:3D cofounder Samantha Snabes met Gonzalez on a tour of the farm. The topic of 3D printing arose. Perhaps there was an opportunity to print some tools for use in their line of work?

Sandra Farms would later serve as a test kitchen for proof-of-concept work using recycled plastic to create functional tools on the new pellet printer, Gigabot X. There was also a second opportunity that Gonzalez saw for 3D printing on the farm.

In addition to acres of coffee, Sandra Farms boasts a collection of other crops, including citrus, turmeric, and cacao. With their chocolatier Bajari in Mayagüez, they created a line of chocolate products – among them, cigar-shaped chocolates. The path to create the lifelike, cylindrical cigars Gonzalez envisioned, however, proved to be more difficult than anticipated.

“We had searched – both myself and the chocolatier – all over online, everywhere, and we never had found a totally cylindrical mold,” says Gonzalez.

Sandra Farms employee Domenico Celli echoes this challenge. “There wasn’t really any solution that we could easily find out there, especially for a relatively small scale production like we have.” Their method in the interim was imperfect: a mold fashioned from a piece of ½” PVC pipe. Says Celli, “It wasn’t very practical, it was a pain to use, you could only do a few at a time.”

The band-aid solution worked in the beginning when they were only making a few pieces at a time for themselves or gifts. Celli continues, “But now that they’re trying to gradually increase their production they weren’t able to scale the way that they had wanted to with that product, because our chocolatier was not able to pump out what we needed with the molds that we had.”

When Gonzalez and Snabes met, a lightbulb went off for him. “I said, ‘Ah, 3D printing might save the day.’ Bingo.”

In conjunction with re:3D designer Alessandra Montaño, they worked on the design of a cylindrical mold into which molten chocolate could be poured, and then snapped apart to remove the chocolate pieces once hardened. Gigabot was used to 3D print prototypes as they refined the features.

“Designing cigar molds are not that complicated – cigars are just a cylinder shape,” explains Montaño. “So, instead of focusing on that aspect of the design, I was focusing on how to make this practical for them.”

As a small, boutique coffee farm, their needs weren’t dramatic – they were just starting out with this idea and interested in producing batch quantities in the dozens or low hundreds, not thousands.

“They aren’t making a million chocolate cigars,” says Montaño. “I wanted to design something that they could use to scale up, if they wanted to. So, the interesting part of the design is that it’s modular, and you can just keep adding more modules as you go.”

The design is simple to use: new rows of the mold simply snap in place next to the previous sections. This will allow the farm to start small and increase their capabilities as demand grows, keeping any initial investment small as they gauge interest.

“As we continue to expand, we can literally just add more units to that and increase production without having to build a whole new way of doing things,” says Celli. “We are very excited to work on this mold with re:3D, and so far we’ve been able to start increasing our production and getting it out there into the market.”

The out-of-the-ordinary setting for such 21st century technology is not lost on the Sandra Farms team. “I think obviously all over the world, 3D printing is really becoming more mainstream, and people are starting to fully realize the potential on all different types of industries,” says Celli. “Here in Puerto Rico, on a coffee and cacao farm, it’s amazing to see how many different applications that there are in such an unlikely place.”

* Disclaimer: The 3D prints used in this application were for prototyping and testing purposes. Experts recommend proper material use and post-processing when creating 3D prints for use in direct food-contact applications. Please see Formlabs’ Essential Guide to Food Safe 3D Printing for guidance: https://formlabs.com/blog/guide-to-food-safe-3d-printing/

Morgan Hamel

Blog Post Author

Creating Water from Air: WATRIC Energy Resources

Karlos Miranda was in his first year at University Of Puerto Rico Mayagüez Campus when Hurricane Maria hit.

Bringing with it 150 mile-an-hour winds and several feet of rainfall, the storm devastated Puerto Rico, destroying homes and wiping out power across the island. But it was the destruction of the water system that made the biggest impression on Miranda, spurring him to action.

“I remember the first time I went out looking for water and saw the lines of people waiting for an oasis truck. It was a never-ending line of people desperate to fill their containers with water,” he recounts. “All these people – me included – were lucky to live in a place where water trucks were able to come, because there were others in more isolated areas or places with blocked roads who did not have access to water for a longer time.”

It jolted him that even the people who were seemingly well-equipped for such a natural disaster – homes with solar panels and backup generators – were crippled by the loss of running water. “After Maria, many Puerto Ricans started buying electric generators or moving to renewable energy to decrease the impact of a blackout, but when it comes to water there is not much to do in order to be more resilient.”

The relief effort was also woefully botched: who can forget the image of thousands of water bottle pallets left to expire on a hot runway in Ceiba?

“We saw a need after the hurricane: a need in water transportation, a need of micro-grids, and a gap in home-sustainability products,” Miranda says. “The need for an alternative water source – it was very obvious in that moment.”

 

Finding Solutions to Problems Exposed by Maria

As a student in the mechanical engineering program with a penchant for tinkering, Miranda often attended on-campus workshops for startups. One such event was put on by a local organization, Parallel18, which hosts a five-month program in San Juan that provides grants and mentorship to young companies in an accelerator-like format. Under the Parallel18 umbrella is Pre18, a program for even earlier-stage startups that may still be in the prototype phase.

Miranda pitched his idea and was accepted into Pre18’s second cohort.

That idea is now WATRIC Energy Resources, Miranda’s answer to the lack of off-the-grid systems for use in the event of a natural disaster, or simply to improve one’s carbon footprint. WATRIC’s mission is to develop home solutions, accessible to the average Puerto Rican, to extract potable water from the surroundings so that water security is never a concern.

“[Maria] has been in my mind since, and is what motivated me to start looking for future solutions in water access because…I am aware that this same situation could happen again to Puerto Rico, and any place prone to natural disasters like hurricanes.”

Miranda is working towards this solution through the creation of WALT, a wall-mounted device that condenses naturally-occurring moisture in the air, turning it into liquid water. Using the surrounding air, the technology makes use of the Peltier effect – in conjunction with software to allow the system to adapt in a wide range of environments – to generate one to two gallons of drinkable water a day.

“A technology like WALT could mean relief in a natural disaster that causes a water blackout,” Miranda explains. “We also think about WALT as part of the effort for achieving independence from the grid. We want to bring the same relief that people have when they can generate their own energy at home, but with water, and a future in which total home independence from the grid is a possibility.”

A Growing Startup Community in Puerto Rico

Over the course of about six months, Miranda was able to move rapidly from idea stage to workable prototype thanks to the help of a growing startup community in Puerto Rico, one which has blossomed from the rubble of Maria as local entrepreneurs sprang to action to create solutions to problems left exposed in the wake of the storm.

“Here in the island, this is – I would say – the first time that the startup community is really having growth,” Miranda muses. 

One such entrepreneurial hub fueling this renaissance is Engine-4, which, at 24,000 square feet, is the largest coworking space in Puerto Rico. Housed in an old civil defense base, its mixed-use facilities are home to an array of equipment like soldering tools, oscilloscopes, and 3D printers. Miranda found himself at the space by way of Parallel18, where he met a fellow member – also part of the Engine-4 world – who introduced him.

He was blown away by the facility. “I didn’t know that they had so much resources in there for hardware prototyping and for hardware start-ups,” Miranda recollects. He was more accustomed to seeing young, software-focused companies, both in Puerto Rico and in the news in general. “Hardware start-ups are more difficult and less common in the island…so I was impressed that [Engine-4] had all these resources, 3D printing, everything.”

Both Parallel18 and Engine-4 host Gigabots for their members to use as a prototyping and design resource. Miranda took advantage of the two locations during the creation of WALT, printing full-scale models that dwarved the build volume of his desktop 3D printer at home.

“With these kinds of programs, we not only have the funds, we have an alternative to use resources directly,” he explains. Pre18 provided them with monetary grants, and, equally as beneficial, Engine-4 offered them access to machinery that would have otherwise been prohibitively expensive.

Miranda doesn’t know how WATRIC would have gotten to a final design without 3D printing.

He describes the early design stages, modeling the unit using CAD. “We thought that it was functional in that moment,” he recounts, “but it wasn’t until we had the physical prototype actually printed that we were able to improve it and to see what needed to be changed.” The phenomenon is all too common for product designers. A 3D design that seems watertight on a screen immediately gives up its flaws once its form enters the physical realm.

“Prototyping is our daily activity,” Miranda says. “3D printing is helping us to iterate. When we make our prototype, we see where we need to improve.”

The model they printed at Engine-4 clocked in at around 26 hours, designed specifically to allow them to move seamlessly from 3D printing into injection molding.

While WATRIC Energy Resources finishes the development and scaling of their drinking water product, they have created a smaller, spinoff version to get people a taste of their technology’s capabilities: a smart indoor plant watering system called WALTY. They will be launching a Kickstarter for this product, using funds raised to move forward with their larger mission of potable water-producing systems.

Follow WATRIC’s progress and get notified when their Kickstarter launches, at https://watric.com/

Morgan Hamel

Blog Post Author

Innovating in The Time of Corona(virus)

The exponential spread of the novel coronavirus across the globe led to overwhelming demand on supply chains and disruptions to traditional manufacturing and distribution systems. Because of societal lockdowns and stay-at-home orders, a dire need quickly arose for locally fabricated, specifically focused and creatively sourced solutions to equipment shortages and emergency supplies. At home and across the globe, designers and engineers quickly mobilized into online, open-source prototyping groups to solve the challenge of a lack of personal protective equipment (PPE), ventilators and medical device accessories. 3D printing and additive manufacturing was an obvious go-to, with the ability to rapidly prototype and iterate on the fly, teams could utilize 3D printers to supply healthcare providers with equipment now, as soon as there were designs to print. The intention and needs were obvious and clear – to aid humanity and fill the gaps in supply chains – however, organizing volunteers and streamlining the process to avoid duplicate efforts was a daunting task.

As a company with a wealth of R&D project experience and long used to working as a distributed team, re:3D put out the call that we would prototype – for free – any life-saving devices or PPE in order to expedite review by medical professionals. We are conscientious contributors to the open source design community for COVID-19 response. We take a First, Do No Harm approach to any design work we do for this effort, meaning that it needs to be designed with input from, and in partnership with, the individuals who will utilize any equipment we prototype. We will not create anything that gives a false sense of security, but is ineffective or harmful. Our medical providers on the front lines are in need, and we are honored to take on the challenge.

Face Shields

In two overlapping efforts, we prototyped a design for a 3D printed face shield with full visor coverage and an adjustable zip tie style latching mechanism. The inquiry started in Puerto Rico. Vicente Gascó, our friend and colleague from Tredé and Engine-4 shared he had a supply of 4000 clear plastic lenses for face shields, but no visor to which they would attach to the head. Armed with only the measurements of the lenses and aided by an idea from assembly guru and NASA technician Andrew Jica in Houston, Brian Duhaime, our mechanical engineer in Austin, and Alessandra Montano, our graphics designer in Puerto Rico, pumped out five different iterations of a face shield in only 48 hours.

AlessandraNotes
AndrewZipTie
BrianNotes
VicenteTweet

Vicente and Luis Torres, co-founder of Engine-4, pulled our Puerto Rico Gigabot out of Parallel-18 and added it to the existing Gigabot at Engine-4. Gigabots in Austin and in Puerto Rico printed out iterations of the designs for testing.

In Houston at the same time, CTO Matthew Fiedler, mechanical engineer Helen Little and community liaison Charlotte Craff were meeting with doctors from a local hospital to discuss their needs for a face shield. Knowing that vetted, open source face shield designs were already available, the group reviewed designs by Prusa, Lazarus3D, Budmen and Professional Plastics. The Houston team 3D printed existing options for the doctors to test, but the designs didn’t meet all of the doctors’ needs:

  • Lightweight, fully closed top
  • Reducing the air gap between lens and chin
  • 180 degree lens coverage
  • Limit number of parts to reduce need to source materials in short supply

Knowing that supply chains were disrupted and very little raw materials were available in a timely manner, re:3D conferred with Professional Plastics and determined that plastic sheeting supplies were well behind schedule, but that there were excess pre-cut face shield lenses available. Again, re:3D opted to prototype to existing, local supplies, keeping stress off of traditional supply chains and getting creative with what was available.

Revisions
CAD
RevRing

Over the next week, Helen built on the work done for the Puerto Rico design, integrated the needs of the doctors and iterated ten different versions of the face shield while working from home and rarely getting to hold a print in her hands. The result is a single print, face shield with an adjustable latching mechanism. It’s designed for 180 degrees of protection and comfort without the addition of foam padding.  It has the approval of the hospital’s Infection Control and  is currently available at the National Institutes of Health 3D Print exchange for COVID-19 Response. https://3dprint.nih.gov/discover/3dpx-013504

Hands-Free Door Pulls

Eliminating unnecessary shared contact surfaces is imperative, especially in buildings where essential workers are operating to continue necessary services. Our team includes multiple military service members. One of our reservists was activated when she sent out a call back to our team to make some hands-free door pulls to use on the base. Aided by Matthew Fiedler, Mike Battaglia, our designer in Austin, and Brian Duhaime went to work prototyping hands-free door pulls for lever-style and bar-style door handles.

Door Pull 4
Door Pull 3
Door Pull 1
Door Pull 2

These designs were drafted before we had dimensions for either of the door styles, so had to be modeled in such a way to enable incremental dimensional adjustments while preserving the models’ shapes. During her free time, the service member sent feedback on the first versions via pictures and notes, and Brian and Mike iterated the changes remotely, melding organic shaped and attachment options into single print solutions.

Door Pull Dimensions
Door Pull Prints
IMG_4453(edited)
Door Pull in Use

The hands-free door pulls are now successfully in use on base, protecting our military personnel as they work to respond and aid COVID-19 efforts. These models are available for download here https://3dprint.nih.gov/discover/3dpx-013825 and here: https://3dprint.nih.gov/discover/3dpx-013822

From Intubation Box to Drape Stands

As a 3D printer manufacturer, we are understandably advocates of 3D printing use in manufacturing. However, we recognize that not all innovations require, or are best served by, an exclusively 3D printed solution. As we do much of our manufacturing in-house, including machining parts on our CNCs, we can apply rapid prototyping principals to traditional manufacturing methods. Take the example of an aerosol or intubation box:

We were contacted by an anesthesiologist based in Austin about modifying such a box, used to protect doctors and nurses from aerosols released when intubating a patient. The doctor’s main concerns were ability to clean and the need for a “helper” hole. This equipment needed a curved, clear surface rather than sharp corners where germs could hide. We offered to prototype using polycarbonate sheeting and an aluminum framework available in our machine shop.  In this case, the request for aid evolved before we produced a prototype. The anesthesiologist reported that the existing boxes were unwieldy and took up too much space, so instead requested a solution for supporting clear plastic drapes to achieve the same purpose and be easy to store. Matthew Fiedler proposed a combined 3d printed base and a bent aluminum frame for the project. Design work is ongoing and we will update this post as the prototype develops.

Are you a healthcare professional needing a COVID-19 related equipment solution? Please reach out to us at info@re3d.org to begin coordination. Should you wish to purchase any of our COVID-19 designs. They’re available in our online store: https://shop.re3d.org/collections/covid-19

Interested in supporting existing efforts to fight COVID-19? See below for how to help in Austin, Houston and Puerto Rico.

Austin

There is a huge maker community that has sprung to action to support the 3D printing of PPE here in Austin and the surrounding areas.  One of the largest efforts is being run by Masks for Docs (masksfordocs.com), who are actively soliciting donated face shield prints, assembling the shield, and distributing them to hospitals, health clinics, nursing homes, etc – all around the Austin area.  To help with this effort, re:3D will be collecting donated 3D printed face shields in drop-boxes at two locations, Brew & Brew and the Draught House Pub.
 
If you have a 3D printer at home or work & want to help out in the Austin area, you can access the Face Shield Design here.
 
Recommended Print Settings:
  • PETG is preferred, but PLA is completely acceptable if you don’t have PETG or are not able to print with it.
  • 3-4 solid top/bottom layers
  • .3mm layer height
  • 5 Perimeters (AKA Shells or walls)
  • 0% Infill
 
Drop off boxes can be found at:
 
Brew & Brew
500 San Marcos St #105, Austin, TX 78702
 
The Draught House
4112 Medical Pkwy, Austin, TX 78756

Houston

TXRX and the amazing maker-community continue to organize face shield collection around Houston.  We are donating 3D printed face shields as well as hosting a community donation box for makers in the Clear Lake area who are printing the face shields at home.  At our factory, the batches are consolidated and sent to TXRX for assembly and distribution to hospitals and first responders in the Houston area.  To date, over 1600 face shields have been donated from the Clear Lake area –  keep it up!
More information and the design file is available here.
 
The Clear Lake drop off box can be found at:
re:3D, Inc.
1100 Hercules
STE 220
Houston, TX 77058

Puerto Rico

The maker community, including a few Gigabots have done a fantastic job collaborating in San Juan & beyond. We are currently collecting requests for those in need of PPE and sharing opportunities to connect with Engine-4 and Trede’s efforts in Bayamon and additional efforts. If you live in Mayaguez and would like create face shields to be assembled with sheets that have been donated to Engine-4, a drop off box has been established. A UPRM student has also initiated a Slack channel to share other needs. Email info@re3d.org for access.
 
The Mayaguez drop off box can be found at:

Maker Chris’ house at:
76 Calle Santiago R Palmer E, Mayaguez PR 00680


If you live outside of these areas and/or are seeking ways to contribute, A Form to Volunteer is Available Here. We will be responding to inquiries this weekend and doing our best to facilitate introductions:)

Charlotte craff

Blog Post Author

NASA Repost: 3D Printing and the Future of Aeronautics

The following articles were originally posted by NASA on nasa.gov. You may recognize a familiar machine in the video at 1:24

August 19, 2019 – 3D Printing and the Future of Aeronautics

Today is National Aviation Day and progress is ongoing in the next evolution of air mobility – all thanks to emerging 3D printing technology.

This image of a full-scale model of Langley Aerodrome No. 8 is being constructed at NASA’s Langley Research Center. The LA-8 model will to contribute to the agency’s Urban Air Mobility (UAM) initiative. “It’s definitely a new world with 3-D printing,” said engineering technician Sam James, pictured here. “It’s the future without a doubt.”

About 80 percent of the model is built using 3D printers on center using nylon and polycarbonate, which allows engineers to change the wings, the fuselage and add other sections of the model such as propellers and computer hardware rapidly.

Since 1939, August 19 has been celebrated as National Aviation Day, the legacy of a presidential proclamation first made by Franklin D. Roosevelt to celebrate the birthday of civil aviation pioneer Orville Wright. At NASA, aeronautics is not only part of our name, it is an integral part of our mission. And, this year we’re celebrating National Aviation Day on social media by highlighting some of unique and surprising ways our aeronautics research impacts your daily life. From innovative video games that help those with ADHD to using wind tunnels to test automobiles, ships and wheelchairs, explore all the ways NASA is with you when you fly–and beyond–by following us on Twitter, Facebook, and Instagram.

April 25, 2019 – Langley Aerodrome Created to Explore Urban Air Mobility

One of the keys to unlocking the future of Urban Air Mobility (UAM) is exploring how different technologies and configurations of aircraft will perform in the urban environment. To start gathering as much data as possible, NASA engineers are moving forward with their newest modular unmanned aerial system, the Langley Aerodrome #8.

“The project is called Advanced Urban Air Mobility Test Beds,” said Dave North, Unmanned Aerial Systems Section Lead. “This is a new effort in aeronautics to look at urban flight, both unmanned flight like package delivery vehicles, all the way up to manned vehicles that may carry six or eight people at a time.”

The new vehicle’s namesake is not just because it was designed and built at NASA’s Langley Research Center in Hampton, Virginia, but in honor of Samuel P. Langley who coined the term aerodrome when he named his series of unmanned aircraft in the late 1890s. Yes, before the Wright brothers flew at Kitty Hawk, Langley was flying “drones” over the Potomac River. His Aerodrome #5 flew for 90 seconds over a distance of half a mile.

“It seemed fitting to honor Langley’s work as we explore unmanned systems,” said North.

The LA-8 recently completed its first wind tunnel test in NASA’s 12-foot Low Speed Wind Tunnel here at Langley.

“This is all about getting the data and getting the process down so we can help the private sector accelerate the whole Urban Air Mobility effort,” said North.

A popular concept for urban flights is known as electric vertical takeoff and landing, or eVTOL. Put simply, the aircraft can take off like a helicopter, hover, and then transition to fast forward flight like an airplane.

“That hand-off from hovering to forward flight is really difficult from a control standpoint,” said North. “NASA is starting to look at these concepts and how you would fly them in the airspace, and how to help all these private companies get their vehicles certified, air worthy and safe to fly. So we’re building these technology testbeds to investigate those things.”

Collecting as much data as possible in a world where many different styles of urban aircraft are coming to life off the papers they were first designed on is the challenge. To accomplish this task the LA-8 is a modular vehicle that can have almost any part redesigned and swapped out for a different one thanks to computer aided design (CAD) and 3D-printing.

“The focus initially was to build as much of the aircraft as we could using 3D-printers,” said Greg Howland, NASA engineer. “We go straight from the CAD file to getting it printed out. Less hands-on work for the parts.”

Roughly 80% of the LA-8 is made from 3D-printed material allowing these engineers to change the wings, the fuselage and other sections quite rapidly.

“We’ve already figured out a lot of things that we would like to do a little different on the second and third models,” Howland said. “So I’m making changes in the CAD files as we go along, and if you need replacement parts, you can almost just push a button and get a part printed out.”

The continued redesign of the Langley Aerodrome will help NASA focus on making these types of vehicles safer and share that data with the private industry.

“How do you look at off-nominal conditions?” asked North. “Off-nominal meaning, what if you lost a propeller or motor, could you still control the vehicle and get it on the ground safely? Can you fly this in gusty winds? These are areas that we’re building these technology test-beds for.”

The capability to rapidly design, fabricate and test these types of new configurations was developed as part of the Transformative Aeronautics Concepts – Convergent Aeronautics Solutions (TAC-CAS) program. The project is also being funded by the Air Traffic Management – Exploration (ATM-X) and TAC Transformational Tools and Technologies (TAC-TTT) programs.

North said that they expect to have the LA-8 move from wind tunnel tests to flight tests by late August.

david meade

NASA Langley Research Center

Saying ‘I Do!’ To 3D Printing For A Wedding

It’s that lovely time of year again where love is all amongst us as weddings are galore! More than a handful of our teammates have utilized the power of 3D printing with Gigabot to create wedding decor that reduces costs while optimizing creative expression & personalization… so we thought we’d share their applications in hopes to inspire 3D printing for your special day.

4 Ways To Utilize 3D Printing For A Wedding (& Why You Should)

3D Printed Wall Decor Lighting Up The Dance Floor 

Jeric 3D printed and assembled an LED sign for his sister’s wedding. The printed parts took 14 hours in total to make using a combination of PLA & PETG – PETG for the front, translucent part of the sign and PLA for everything else. He used super glue and hot glue to hold everything together. He also installed LEDs throughout the inside – the LEDs are RGB and have a transmitter connected, so they can use a remote to control the color and light-up patterns. Check out the photos from the full build process in this album.

Why use 3D printing?

“3D printing gave me amazing flexibility in the design, but also let me quickly build a functional 3D design.”
Jeric Bautista

The 3D Printed Icing On Top of the Cake: 3D Printed Wedding Toppers

Alessandra designed & 3D printed ‘Mr&Mrs’ wedding cake toppers and table decorations for Samantha Snabes’ sister’s wedding. They took about 1 hour to design and model for each print and the wedding cake topper took approximately 1 hour to print while the table decoration took about 43 hours to print using silver PLA. The prints were then spraypainted with gold. 

Why use 3D printing?

"Weddings are expensive but custom wedding items are extremely expensive. With 3D printing, you can literally shape your dreams without having to go bankrupt. Time-wise, I was able to get a specific picture from the customer's Pinterest and generate a 3D model under 1 hour. Even if one of the models takes 43 hours to print, you can leave Gigabot in charge while you go home, watch series and take a nap, so you virtually save those 43 hours of possible manual work.”
Alessandra Montano
3D Printed Wedding Cake Topper

A Trove of Treasures In A 3D Printed Chest: 3D Printing Gifts

Mike B. 3D printed a Zelda treasure chest for a Zelda themed wedding. The chest had a slot at the top to drop in gift cards. He also 3D scans newlyweds when he goes to weddings and ships them print-outs of themselves a few months later. For the Zelda treasure chest, he used hinges from the hardware store, a bit of Bondo to give a wood texture, acrylic paint, and a clear coat. The design took 2 hours, and Mike kept changing it to look more authentic to the game. The portraits were printed in white PLA and scanned with a Structure Sensor. Scans were cleaned up a bit in MeshMixer.

Why use 3D printing?

"For many fabricated items, the materials inform the design but with 3D printing, you can make virtually anything if you can model it. A treasure chest would traditionally be made with wood and metal. You can mimic lots of different fabrication methods all with the same two tools, a CAD program, and a Gigabot. The Zelda treasure chest needed to look cartoony so in this case, it was actually easier to prime/paint than a metal/wood fabrication would have been. 3D printing is indispensable for prop design! For the scans, someone would have had to sculpt them; this was more of a portrait captured at the moment which I think is special.”
Mike Battaglia

3D Printed Accessories: A Life-Sized Diamond Isn’t Tough

Tammie 3D printed a diamond to be a light within a large diamond ring to further accessorize the wedding. She used natural PLA and it took 1.5 to 2 hours to complete the print using Gigabot and didn’t do any post-processing work on the prints.

Why use 3D printing?

“I would have never found a diamond this large to display for the day! Thankfully for the size of Gigabot and the versatility of 3D printing, it was made possible.”
Tammie Vargas

There you have it! Four special 3D printing applications for very special days. We’d love to know – what have you printed for weddings & special occasions? Don’t hesitate to share on our forum! Until then…happy printing ever after 🙂

Cat George

Blog Post Author

HiveCube: Building a Safer Future for Puerto Rico

Note: re:3D does not manufacture HiveCube homes, but rather was part of the prototyping process and helped to 3D print architectural models which HiveCube used for pitching to investors.

Maria Velasco was hunkered down with family on the west coast of Puerto Rico in Mayagüez when Hurricane Maria hit.

“The first 24 hours there was no contact with anything outside of your neighbors.”

She described how, in the immediate aftermath of the storm, they could venture a little further from home each day to assess the damage. Families relied on word of mouth to check the wellbeing of their loved ones; people would drop by to let others know they were alive.

“It’s a humbling experience,” Velasco recounts. “You realize what you need and what you don’t need in life.”

It was this focus on the essentials in a time of crisis that got Velasco and her business partner, Carla Gautier, thinking. Channeling the spirit of resiliency on the island following the disaster, Gautier and Velasco vowed to stay and help rebuild in their own way, to make the future safer for the people of Puerto Rico.

The Beginnings of the Hive

Gautier has a particular skillset that makes her well-suited for the challenge: she’s an architect.

While completing on her Bachelor’s of Science in Architecture in Boston, she spent four months in Berlin, traveling around Europe to study alternative types of architecture for low-income communities. It was on this tour that she was first exposed to structures made from shipping containers. Later, during her Masters of Architecture, she spent time in West Africa – in Benin – studying informal construction and development.

These two exposures later came together to form the foundation of HiveCube.

After completing her master’s, Gautier started working for FEMA, getting an up-close view of the destruction around the island post-Maria. On this assignment, Gautier saw firsthand a major factor that compounded the destruction of the storm: buildings not being up to code.

She and Velasco did some research, discovering that 55% of housing in Puerto Rico is constructed informally. Some areas of the island may not have stood a chance against the force of Maria, but surely structures being built to code and with hurricanes in mind should be a given on the island, the pair mused.

These three experiences in Gautier’s architecture career – her work on low-income housing in Europe, her study of informal construction in West Africa, and her exposure to the prevalence of informal construction on her home turf – came together to form the seed of an idea.

Gautier wanted to bring her knowledge of simplistic yet effective designs for low-income housing from Europe to help people in her homeland, to create affordable housing built to withstand ferocious storms that didn’t compromise on quality or comfort.

The idea for HiveCube began to take shape.

A Jumpstart from Parallel18

Hurricane Maria tested the resiliency of Puerto Rico, and Puerto Rico stepped up to the challenge.

San Juan-based startup accelerator Parallel18 created a new program post-Maria specifically to harness the energy and drive to bounce back that they saw amongst the population. Called Pre-18, it was a separate entity from their typical accelerator program, where they mentored around 40 companies from Puerto Rico each working in their own way to rebuild and kickstart the economy after the storm. HiveCube was one of the companies accepted.

Something I'm excited about in HiveCube is their team. They have two very energetic, capable founders in Carla and Maria.
Lucas Arzola is the Director of Operations at Parallel18
HiveCube founders Velasco and Gautier with Sebastian Vidal, Executive Director of Parallel18

HiveCube and the other companies of Pre-18 epitomize the buoyant spirit of Puerto Ricans following one of the worst disasters on the island in recent history.

“We had our campaign called ‘El Boricua se las Inventa’ – Puerto Ricans Get Creative,” explains Arzola. “We’ve seen that creativity happen all around us, and HiveCube is just one example of a company that was born from the hurricane and created a solution that now is growing and thriving.”

Companies from the Pre-18 program were then eligible to be selected for the following Parallel18 cohort; HiveCube was one of 16 that made this jump. “We’ve never as many Puerto Rican companies in the Parallel18 cohort as we did in this one,” Arzola muses.

The Pre-18 program was so successful that Parallel18 has decided to make it a regular thing. “It’s going to be an official program we’re going to do once a year,” explains Arzola. “So the idea is that we can do one Pre-18 cohort for every two Parallel18s.”

HiveCube’s extended time with the Parallel18 team super-charged their pace of progress as well as reinforced the value of the accelerator program.

“We’ve seen them evolve and grow significantly in a short amount of time, so it sort of validates our program as well,” says Arzola. “There’s no better validation than just seeing thriving companies that will be able to contribute to Puerto Rico and grow from this point on, because we’re able to support them in this stage where they need help the most. That’s why we do what we do.”

Parallel18 is also where Gigabot enters the HiveCube story.

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The duo was having a tough time pitching investors: their vision was getting distorted along the way, often manifesting in others’ minds as a less-aesthetic, lower-quality “trailer.” But what the two had in mind was so much more – they just couldn’t figure out how to communicate this in a way that resonated with prospective investors.

Gautier and Velasco experienced firsthand the phenomenon of using a 3D printed prototype in lieu of a digital one. The digital renderings on a computer screen or projector weren’t getting them the reactions in meetings that they wanted, but perhaps a physical model could convince people of their vision, they thought.

They used Gigabot to print a basic architectural model of a Hive, and began taking it to meetings with investors and communities working on reconstruction. The physical model excited people in a way that digital drawings and renderings hadn’t.

Suddenly, in Velasco’s words, “everybody wanted to take the meetings, everybody wanted one.”

There was something about being able to turn a physical object over in their hands that clicked with people. The surge in enthusiasm over the model pushed the pair to continue driving forward and make the concept a reality. With the first hurdle crossed, they now had to bring their vision to life.

Building a Hive

HiveCube works with used shipping containers, lending a second life to  structures that would otherwise end up in container graveyards.

They buy a certified-as-seaworthy shipping container, verify that the container is structurally sound, and begin preparing it for its new life. The container is given holes for windows and a door, a fresh coat of paint, and the interior refurbished and outfitted with living fixtures.

The prototype Hive that they constructed for their August launch party is what will become their Basic Model: a two bedroom, one bathroom unit with a kitchen and living room in the center.

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They’re filling a major gap on the island that contributed to the devastation caused by Hurricane Maria: creating housing that’s code-compliant but also affordable for the general population.

“We believe in their concept: the fact that they’re bringing an architecture background to what they’re doing and are designing hurricane-resistant homes that can provide accessible housing,” Parallel18’s Arzola explains. “That’s really relevant to one of the big problems that appeared after the hurricane: the fact that the median income in Puerto Rico is low compared to the cost of housing. There is a need for more affordable options in the market.”

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Their goal is to create something that’s more than just a safe shelter. “We’ve been trying to make sure that we build something that’s actually nice to live in, not just something cheap and fast,” Velasco explains. “Something that people would want to own and they’re proud of and that they feel comfortable and safe with.”

The pride for their island shines through HiveCube’s mission to create safe, affordable housing for Puerto Ricans.

As Velasco puts it, “We’re going to try and build something that can actually help the community be stronger, if something like this – God forbid – happens again.”

On December 13th, HiveCube took home the People’s Choice Award at Parallel18’s Generation Five Demo Day, an award bestowed by an audience vote.

“It speaks to how relatable and relevant the solution is to Puerto Rico,” muses Arzola. “So yeah, we’re very proud.”

Morgan Hamel

Blog Post Author

Hurricane Maria forces Parknet to Pivot, Gigabot Lowers Risk

Antonio Ramos takes a deep breath. “It was really depressing.”

A native Puerto Rican, he was living in San Juan when Hurricane Maria hit. He described the sentiment on the island when the storm was forecasted: Irma had just passed by with little effect, and the general feeling was that Maria would also spare them. The island is used to storms, he explains, and they usually bounced back after big ones in a couple weeks.

But this one turned out to be different.

He remembers seeing the radar images of the vastness of the tempest bearing down on them, their island dwarfed next to it. The dire situation quickly became apparent. Antonio recalls his reaction: “Okay, we’re screwed.”

It wasn’t just Antonio that had to weather the storm – he had a company to tend to as well.

From Capstone Project to Company

Antonio and his cofounder, Alan Lopez, started Parknet when they were still engineering students in university. They used the idea for their Capstone Project, building a controller that could connect to the Internet using Wi-Fi or SIM cards and control a boom barrier or electromagnetic gate – “really anything that could be activated,” Antonio explains.

They approached a local company with their idea, proposing to them that they could reprogram their controller in real time.

“They actually challenged us,” recounts Antonio. “They told us, ‘Hey, that can’t be done.’” The company said the only way to reprogram it was to go into a computer, use their software, and reprogram the whole controller.

Antonio didn’t balk. “I told them, ‘No, we can actually hack your controller.’” The company didn’t budge.

“So, it was a challenge,” says Antonio. “And challenge accepted. Something that we’ve learned is that you never challenge an engineer and say that they can’t do something, because they will do it.”

Six months later, Antonio and Alan demoed for the company their “unhackable” controller working as they had originally pitched. Parknet was born.

Maria's Arrival

Parknet makes cloud-based controlled access systems which provide facility administrators the ability to control access points – think entry doors or parking gates – in real-time, through the use of a web-based app accessible from any device with an internet connection.

Antonio and Alan explored different routes for how to market their system in Puerto Rico.

“At first, we wanted to use it for a parking lot payment system. But we found a bit of resistance here from the parking administrators,” Alan explains. They shifted their focus to gated communities and apartment complexes.

They joined the Generation Four cohort of Puerto Rican incubator program Parallel18 in August. And then, in September, Maria arrived.

“After the hurricane, we had no cell phone communication, we had no Internet, no power. It was really depressing,” Antonio recounts. “Our business needs Internet. It’s an Internet of Things device, so it needs Internet to operate and it needs power. So we were kind of stuck there.”

They pivoted yet again, strategizing how to stay afloat and retain their employees.

“We had to survive,” Antonio says. “The sales cycle for gated communities and apartment complexes can be from four to six months. It takes a lot of time and a lot of meetings and convincing.” But they found that with commercial spaces, the process was faster. “We started selling to co-working places and offices.” One such customer is Parallel18 itself.

Antonio stopped paying himself in order to keep his team on payroll. “We were in survival mode,” he explains. He began working in generator repairs, a service in high demand on the island following Maria.

They weathered the monster storm and its lingering aftermath, and several months later the company was back on its feet. As Parknet started demanding more from Antonio, he wrapped up his generator repair work and went back to it full time.

3D Printing Before Moving to Manufacturing

In the Parallel18 program, Parknet crossed paths with re:3D.

They began using Gigabot to 3D print enclosures for their printed circuit boards, or PCBs. “We can build a box in like, two hours, and we can test it before we send it to the manufacturer,” Antonio explains. “The manufacturer had a minimum of 10 boxes, and if it didn’t work correctly, we were going to waste 10 boxes.”

Once they finalized the enclosure design, they moved to a sheet metal forming process, but they continued to turn back to Gigabot for custom requests. “One of the advantages is that we can offer a customer a custom design,” Antonio says. “If they want a diamond shaped scanner, we can build it for them. If they want it embedded into a gypsum board, we can also do that.”

One Parknet customer in San Juan who has requested a diamond-shaped scanner is El Almacén, a speakeasy-style bar tucked away just off the buzzing square of La Placita.

They’re using Parknet’s technology to text message patrons digital keys and grant them entry to the bar with the swipe of a phone. The door unlocks and the e-key-holder descends into an old-timey themed lounge.

It also gives the bar the marketing opportunity to track and quantify their marketing. They can compare how many people the text message key was sent to and how many people used it, rather than their old method, which was a post on their Facebook page with the password for the night. There is also the location-based aspect of it – if a patron gets within a certain radius of the bar, their phone will remind them that they have a key to the nearby locale.

Moving Forward Post-Maria

It’s just past the one year anniversary of Hurricane Maria’s landfall.

Puerto Rico has recovered fairly well given the incredible destruction of the storm. The land itself looks lush and green, and the people I spoke with are propelled by a resilient spirit and a desire to rebuild and strengthen their island for the future.

Antonio is one of those very people. Parknet came out the other side of Maria arguably a stronger company, with more applications and a wider customer base than he and Alan had originally imagined. It’s been a big cycle for them that has taken them through multiple major pivots in the company’s lifespan.

After the trials of Maria, Parknet is now focused back on gated communities and apartment complexes and is ready to tackle their original vision of parking lots.

Learn more about Parknet: https://www.linkedin.com/company/parknet.pr/about/

Learn more about Parallel18: https://www.parallel18.com/

Morgan Hamel

Blog Post Author

And The Winner Is… Results of the Fast Furniture Challenge

As you may have seen, we launched a global 3D printing contest this summer in pursuit of finding a 3D printed solution to quickly assemble furniture in preparation for this year’s hurricane season. Called the “Fast Furniture Challenge”, we opened up this problem to our global community in exchange for a $250 cash prize.

Applicants were judged on a set of criteria including print time, cost, materials restrictions, weight load, and ease of assembly. Winning prints had a print time of under 48 hours, cost less than $20 to print, and were easy to assemble and disassemble using only pre-cut wood from Home Depot for the final piece of furniture to hold at least 150 pounds.

Participants submitted .STL files and digital presentation boards and our team judged the designs based on each design’s creativity, presentation board, .STL quality, estimated print time and ability to print without supports. The top designs were then printed and put to the test – the final product was judged on the ability to withstand 150 pounds, how easy it was to assemble and the cost of the print.

We’re excited to announce our winner…drumroll, please…Sylvain Fages!  Sylvain’s design printed a set of joints (4 joints = 1 table) in 12.08 hours, using 1.07 lbs of PLA for a $20.21 material cost. The prints had 15% rectilinear infill and no supports were needed. Also, shout out to the runner-up: Daniel Alvarado from ORION.

Below you’ll see some snapshots and assembly footage from Sylvain’s winning design and the final product our teammate Alessandra put to the test.

Reviewing Design Boards & .STL files

Sylvain submitted two design presentation boards (you can also access the original Sylvain Designs PDF).

Sylvain's Design #1

Design #1 was done in such a way that the weight of the table is resting on the legs and not on the joint. That way, the strength of the table top should define the strength of the table; however, requires a small hole to “clip-in-place” the table top.

Sylvain's Design #2

Design #2 is almost the same as design #1 but without the hole for clipping the top in place. Design #2 was selected for printing as it does not require access to power tools that may not be available to people during emergencies. 

.STL file review & slicing revealed the model was watertight with no errors and can be printed without supports, due to its unique design.

Testing the Joints

After selecting the top designs, we put them to the test by 3D printing them and assembling tables using pre-cut wood from Home Depot to evaluate ease of assembly, their stability and ability to hold up to 150 pounds. Here’s footage from Sylvain’s printed designs:

3D Printed Joints Table Assembly Video: Ease of assembly was an important factor in choosing the winner, watch Alessandra assemble a table w/ Sylvain’s 3D printed joints

Weight Test Video: We also tested that the table could hold up to 150 lbs.

Table Stability Video: Alessandra tested the level of the table’s stability.

Final Product Photos

Here are some snapshots of the joints in action after the table was assembled. Click to view bigger photos. 

3D Printed Joints and Final Table Design
Assembled Table w/ 3D Printed Joints 1
3D Printed Table Joints 1
Assembled Table w/ 3D Printed Joints 2
Assembled Table w/ 3D Printed Joints 3

Lessons + Insights

As you may have seen in our first post announcing this challenge, this Fast Furniture challenge was inspired by personal experiences our team endured during Hurricane Irma and Maria which we will continue to be sharing in our 3D printing recovery series. We ourselves went through rounds of trial and error to find a 3D printed solution to assemble furniture quickly – which was one of the biggest requests in the aftermath of Hurricane Maria. I caught up with our teammate Alessandra who shared some lessons from our experience and learnings from this challenge. Here are her key takeaways:

  • Joints with 3/8″ wall thickness are very resistant to breaking. Previously, we were using 1/8″-1/4″ wall thickness for joints and they weren’t as strong as Sylvain’s. That extra 1/8″ does the trick!
  • The configuration of the joints allows the table top to rest on the wooden legs and not the 3D printed joints, which greatly reduces its probability of breaking.
  • No matter how thick the 3D printed part is, braces are needed for full stability. 
  •  
"Using 3D printers to improve our world and help people - this is my vision of a 3D printer at its best!"
Sylvain Fages

We asked Sylvain his motivation for 3D printing and entering this challenge, he shared, “Since I discovered 3D printing through a blog article about fixing a stroller back in 2014, I have always been fascinated by how much you can do and build! I bought (and built) my first printer in 2015 and have since then always admire the possibilities you have with of 3D printing, especially to fix, recycle, and reuse things. When I heard about this challenge, I could not resist but to participate! Using 3D printers to improve our world and help people – this is my vision of a 3D printer at its best!” You can view more from Sylvain on Instagram and Thingiverse.

If you have more questions, you can tune in to more discussion on 3D printing fast furniture on our forum and stay tuned for future 3D printing contests by following us on social media @re3Dprinting on Facebook, Twitter, Instagram and sign up for our monthly newsletter for the latest updates and opportunities. What’s a global challenge you want to solve using 3D printing?

Cat George

Blog Post Author

The Mannequin Challenge

The Greneker office strikes me as a place you wouldn’t want to be stuck wandering at night, what with the bodies lurking around each corner. I scheduled my visit for early afternoon.

Greneker is a mannequin manufacturer based in Los Angeles, California. They’ve worked to stay cutting-edge in their industry since they started in 1934, always keeping pace with the latest groundbreaking materials and manufacturing methods, like moving from plaster to fiberglass around World War II.

They’re proving that even an entrenched player in the game isn’t too old to learn new tricks: their latest foray is into the worlds of digital and 3D printing.

Steve Beckman is President & COO at Greneker, and he’s been a part of the evolution of the company over the last 2+ decades as they’ve set themselves apart in their industry.

When I started with this business, we would get together as a group, we would look at the trends in the marketplace, and we would develop a line based on what we saw happening in the marketplace at that time.” It was a big gamble – the process was both costly and time-intensive – but that was just business as usual for them. “That was done with clay sculpting, so we would start with armatures and clay, go through the process ourselves, create an entire line of mannequins, and really just kind of rolled the dice and hope that it would sell to that market.”

Whereas they began by working independently from apparel manufacturers, Greneker found themselves doing more and more custom work for specific clients. They found their niches in the athletic wear and plus size markets, and working with big-name clients like Under Armour and Adidas in the clay design process provided its own set of challenges.

“It was a very long process to develop a line of custom mannequins,” Steve explains. “We would have to spend a great deal of time upfront with a client trying to figure out what they were looking for, what the poses were, what the dimensions were, what sizes these pieces were. The armatures would be set up by hand, the sculpting would be done by hand in clay. It would require several visits of the client on premises before we got an approval to move into the molding process to begin production.”

When working with athletic apparel clients, the challenges multiplied. As they started to get into sports-specific activities, posing came to be of utmost importance. “The poses are either accurate or they’re inaccurate,” Steve says. “If you try and put a golf mannequin in a golf shop and he is not in the proper position, the mannequin will be ripped apart by patrons.”

If you want to talk with someone about whether Greneker is in fact a creepy place to be stuck at night, Daniel Stocks is your man. As Senior Sculptor at Greneker – or Sculptor Extraordinaire, as Steve tended to refer to him – he’s the one responsible for following through on all those client requests.

“A lot of the time I would work late at night making all these adjustments and changes while the people are in town so that they [could] see it the next day,” Daniel recounts. And that was after starting from scratch on the figure: constructing a metal armature and building up the clay by hand.

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True to their trailblazing past, Greneker began searching for ways to update their process and make themselves more efficient.

“We started to look at digital as a way of creating these pieces, and creating them precisely and accurately,” Steve recounts. “We’ve now moved from clay sculpting to everything being 3D printed, which has helped us in a myriad of ways.”

The 3D Printed Mannequin Challenge

Greneker dipped their toe into 3D printing with a smaller-scale CubeX and quickly realized the potential of the technology.

“We felt as a company that this was the direction that we needed to take, and we needed to go full steam ahead before some of our competitors became aware of the technology and started utilizing it,” Steve shares. They wanted to gain the competitive advantage before others caught wind of what they were doing. “And that’s one of the things we have done, we’ve positioned ourselves as the experts in this type of mannequin design.”

They purchased a few other small 3D printers, and then Daniel began the hunt for a large-scale printer with the right price tag. He came across Gigabot.

“Well, there was really nothing else on the market within a reasonable price point that would make pieces big enough for a full body,” Daniel muses.

“We selected the printer based on, again, the human body,” Steve explains. “We’re a mannequin manufacturer. We wanted larger printers to be able to print torsos and legs.” Their 3D printer arsenal includes a range of machines, from small-scale printers good for the details on hands and faces, up to the large size of Gigabot for cranking out large pieces.

“The challenge for us and my challenge to Daniel was to get a full-sized mannequin printed in one day,” Steve smiles. “It takes about 250 hours of print time to print a mannequin. In order to print it in one day, it was going to take a bunch of machines.”

Take a stroll through their office and you’ll come across the realization of this dream: a separate room tucked within their main sculpting area which they built specifically for 3D printing. “The Gigabots work fantastic for large-sized pieces, so we bought a bunch of them,” Steve recounts. Greneker is now up to four Gigabots – stacked two-by-two and suspended from the ceiling – which they house in this room along with their smaller-scale machines so they can run 24 hours a day.

“Before 3D printing, it would’ve been just unthinkable to make a mannequin in a day,” Daniel muses. “Now it’s actually possible.”

“A Myriad of Benefits”

Steve explained that the benefits that came with moving from clay design to digital and 3D printing have been numerous. The biggest savings may be from a time standpoint – they’re cutting from every aspect of the preproduction process.

“We save time throughout the entire process,” he shares.

Because everything is now digital, they no longer have to bring clients in to see mock-ups in person during the design process. “Instead of having clients visit, we can have video conferencing now, which accelerates the initial consultation period greatly,” Steve explains. “The client can sit on the other end – whether they’re across the country or across the world – and in real time we can make those changes and those tweaks to make these pieces exactly what they’re looking for.”

Daniel is particularly happy about this aspect as well. He still sometimes has to work on a time crunch, he explains, but “it’s less physical and it allows a lot more flexibility,” he explains. “If I have to, I can work from home on the computer and makes adjustments. It’s a lot quicker.”

“What,” you may ask, “does he mean by ‘physical?’” Miniature, scaled-down models of a mannequin to show clients weren’t possible before 3D printing, because the mini and full-scale versions can differ so much when working by hand in clay. So, as Steve recounts, the sculptors had to work in full-size clay as they went through the tweaking process, often while the clients were there in person. He explains, “We would bring the client in and then the sculptors would wrestle with the clay in front of the client until we got it to where it needed to be.”

No more mannequin manhandling. “With 3D printing, we take the digital model and we’ll produce a scaled model, usually about 18 inches tall, and then we can send that to the clients,” says Steve. “They can make sure that all the measurements fit where they like and that the posing is what it needs to be in. Once we get the sign-off at that point, then we produce a full-scale 3D print.”

Greneker will print a full-size version of the mannequin, which, with a little sanding and painting, will function exactly like the final mannequin, albeit not in the final material. That gets shipped to the client where the stakeholders can review the piece exactly as it will look in production.

This is immensely helpful for another portion of the process: the sign-offs. In the past, Greneker had struggled to get all of a client’s decision-makers in the room at once. “We would have a group of people come visit us that may or may not represent all of the stakeholders involved in the development,” Steve explains. “Ultimately, whatever approvals or opinions we received at that point could be superseded by someone else that hadn’t been here.”

That frustrating portion of the process is completely removed now. “With this new process,” Steve says, “the model goes in front of everybody, so it’s there for everyone to look at. You get a much, much tighter buy-in much more quickly.”

And of course, in the actual design process itself, the digital realm has also proven itself to be a clear winner over clay. “If you do something in clay, you do it by hand,” says Steve. “You can’t necessarily repeat that.”

No one is likely a bigger fan than Daniel. “It opens up a lot of new tools,” he explains. When designing a head, for example, he can take advantage of the symmetry tool in CAD. The work he’s done on one side of a face is automatically mirrored to the other. “Before, working in clay, we would have to try to make adjustments – ‘Which ear is higher? Are the eyes straight?’ Things like that it makes much simpler.”

It also aids with consistency and continuity if different sculptors are working on the same body. “If I have a large project and I have three sculptors working on it, because it’s three sets of hands, it may not look identical,” Steve explains. “With the digital design, we don’t have to worry about that. The design is the design and you can move it, change it, scale it, but it’s always the base design and it’s always obvious what it is, no question.”

The slashing of time from every part of the preproduction process goes hand-in-hand with cost-cutting. “Internally for the business, the change has been much more cost-effective,” Steve shares. “When I started, we would create lines based on – when it’s all said and done – it’s spaghetti on the wall. It’s our best guess of what was going to sell. We don’t have to do that any longer.”

That gamble used to be a risky one.

“When we did it in clay, you had to commit to it. Clay’s only got a very limited shelf life,” Steve explains. With CAD replacing clay at Greneker, there’s no more wasted effort and materials going into a design that doesn’t sell. Now, Steve says, “We can put a design that we think is cool together digitally and it can sit there as a model until there’s a market and a place for it.”

An Industry in Flux

“The apparel retail industry is in a great deal of flux right now,” Steve explains. “Online sales have really started to affect their brick and mortar sales. I don’t foresee some of the large scale roll-outs in malls in the near future, but what we do see is the need for smaller runs of more specific posing.”

And this – thanks to their calculated research and work – is where Greneker excels.

“What we see going forward is we need to be much more nimble, much faster, and much more cost-effective on the development side so that the retailers can afford to bring in specific mannequins for specific markets,” says Steve.

Greneker’s hard work to modernize and streamline their mannequin production process has paid off. “The marketplace is requiring speed to market. Everything has got to be done sooner rather than later,” Steve explains. “When we would sculpt and create a new line by hand, the process could take upwards of six months in preproduction. In 3D printing, now we’ve reduced that process to where it can be as short as just a few weeks.”

The tedious parts of their old process -the gambles on trends, the risk of botched posing, building up new armatures and clay bodies by hand, the endless on-site client visits to make tweaks and get approval – all of that is now off their plate.

“Right now, we’ve just finished realizing our first set of goals with 3D printing,” says Steve. “Our future goals: we’re going to bring in as many printers as it takes to be the absolute fastest to market as we can be. We want to stay ahead of our competition.”

Learn more about Greneker: greneker.com

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Morgan Hamel

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