The Maker Movement Unmade? Part 4: Attack of the Clones

Read parts one, two and three of this series. 

Determining a definitive cause of the economic misfortunes of some companies in the open source hardware and maker spaces might prove difficult. However, there was one factor that did seem to clearly impact the desktop 3D printing industry was a flood of low-cost 3D printers from overseas, particularly China.

Starting around 2011 or 2012, clones of open source 3D printers, specifically the MakerBot Replicator, began to appear in the U.S. market. In some cases, the machines were of lesser quality than the originals and, in others, they performed on par or better. In most cases, they were less expensive. Among the earliest copycat brands were Wanhao and FlashForge, which sold the Duplicator and Creator replicas respectively.

At first, it may have seemed as though these Chinese companies were only in the 3D printing business to turnaround a quick profit by taking advantage of open source designs. In part, such skepticism likely stemmed from the different attitudes towards intellectual property, which has resulted in the so-called “pirating” of Western-designed (but often Asian-manufactured) technology.

On the left, the MakerBot Replicator 2. On the right, the Wanhao Duplicator 4.

However, over time, we learned that some of these brands were following in the same maker spirit as their Western counterparts. As Vice General Manager Frank Hua writes on the Wanhao About Us page, “Several Roommates used all [of] their pocket money and bought one Thing-O-Matic from Makerbot. This precious awesome machine brought these college students great enthusiasm [for 3D printing] and help[ed] these budd[ies pursue] their dream. On 1st Oct, WANHAO [replicated] the Thing-O-Matic and named it DUPLICATOR ONE. This 1st Generation Made In China 3D printer has combined most of the advantage[s] of RepRap and Makerbot, and upgrade[d] the extruder to [a non-block] one.”

While the open source aspect of a variety of Chinese models has sometimes been called into question, a number of companies continued to innovate and improve on their foundational copycats. Today, Wanhao has a broad range of 3D printers, including SLA, DLP and FFF. FlashForge products were so well-received that the German engineering multinational Bosch began selling its own version of the FlashForge Creator Pro under its Dremel power tool brand.

As of 2017, China had the most makerspaces in the world, thanks to the government’s Made in China 2025 initiative. The program, launched in 2015, aims to shift the country’s focus from manufacturing low-cost goods for the rest of the world to designing and making high tech products and services for the domestic population. In some cases, this has led to thriving labs of innovation, while in others, the result has been the creation of empty lounges without fabrication equipment.

Xue Yujie at Sixth Tone argues that the stagnation of the maker movement in China is in part due to government pressure for makerspaces to spin out startups and patents. Adafruit points out that similar outcomes can occur with venture capital firms in other parts of the world when too much money is poured into a project and the focus is on forced growth, rather than organic growth.

Electronics at a Shenzhen market. Image courtesy of The Long + Short.

An article in The Long + Short, however, frames the concept of “making”, in the makerspace sense of the word, somewhat differently. The authors describe in the detail the Chinese city of Shenzen, the once-quiet fishing town that now manufactures about 90 percent of the world’s electronics, including pirated goods. Whereas the word “shanzhai” once referred to counterfeit goods, the authors suggest that it now represents the pinnacle of open manufacturing.

With open air markets selling everything from scraps (“reels of resistors, bags of PCB boards, iPhone volume buttons by the bucket”) to complete products (“3D printers, drones of all sizes, and fake Apple watches with bonus features like front-facing cameras”), the city is constantly “making”. These goods are not just mass manufactured products for the rest of the world, but even “niche, often culturally specific products no big companies bother with.”

The authors highlight the hoverboard as a paragon of shanzhai innovation in that the self-balancing scooter had no single inventor but was created in a collaborative fashion online and through informal manufacturing networks. Once it became popular, over 1,000 factories began to produce the item without concern for branding.

It was this same open ecosystem that may have contributed to the transformation of the desktop 3D printing industry and maker movement. The Long + Short authors also highlight how quickly product development can occur in Shenzhen, where the components needed for a prototype can be found “at the market around the corner, or more likely ordered to your exact specification as soon as you want it… Build your prototype, head to the assembly line to push out 10,000 of them, put them out to market, see what sells.”

3D printing, in general, is pitched as a tool for speeding up the design cycle, but, in the case of a massive contract manufacturer, owning the means of production itself speeds up the entire manufacturing process that much more. Located just off the coast of the Chinese mainland on the island of Taiwan, New Kinpo Group oversees the making of such name brand goods as HP printers and Dyson Vacuums, as well as its own line of products.

da Vinci 2.1 AIO 1 with built-in 3D scanner.

At CES 2014, the manufacturing giant unveiled its first desktop 3D printer, the da Vinci 1.0, under its new 3D printing brand, XYZprinting. With a price of $499, the system was among the least expensive on the market at the time. As the stocks of major 3D printing companies like 3D Systems and Stratasys started to crash, XYZ’s printer line began to blow up, including low-cost SLA and DLP systems, as well as FFF 3D printers with price tags as low as $169.

Just as in the case of the Shenzhen electronics manufacturers, New Kinpo Group is able to move quickly from design iteration to manufacturing. The variety of systems sold by XYZprinting to this day is extremely broad, including many variations on the same model (with wi-fi or without; with LCD screen or without; with all-in-one 3D scanner, laser engraver and full-color inkjet printhead or without). The company is consistently able to showcase new technologies, such as food 3D printers, with which it can test market readiness and then decide whether or not it will release them.

Based on one report, at one point, XYZprinting boasted more printer sales than any other company in the market, likely overwhelming the competition. As a result, other manufacturers may not have been able to keep up. Brook Drumm, for instance, remarked in a post-Printrbot interview that “cheap Chinese-made printers, AND Amazon.com selling them, AND Americans choosing to buy them – it all contributed significantly to Printrbot’s demise.”

After the 2014 stock bubble, the 3D printing industry began to experience more growth in the industrial segment with the consumer sector seemingly entering a decline. With that dynamic in the works, XYZ has since decided to shift focus on industrial and professional printers, as well. All of this played into this author’s perception that perhaps the maker movement had started to die off.

However, based on communications with a number of prominent members of said movement, ranging from RepRap luminaries like Richard “RichRap” Horne to former Silicon Valley execs like Carl Bass, it hasn’t died—just transformed.

Read parts one, two and three of this series. 

The post The Maker Movement Unmade? Part 4: Attack of the Clones appeared first on 3DPrint.com | The Voice of 3D Printing / Additive Manufacturing.

Enter the e-NABLE Contest to Win an Ultimaker 2+ for Your Classroom

enablecontest-featuredThe overarching goal of democratizing manufacturing with 3D printing is the betterment of humankind, and one organization that really takes that to heart is e-NABLE. e-NABLE is a network of makers, hobbyists, schools, and professionals who volunteer their time and resources to 3D print free prosthetic hands and arms for individuals who have lost theirs […]

The 2nd TÜV SÜD Additive Manufacturing Conference aims to explore industrial readiness

Leading technical service corporation, TÜV SÜD, is addressing the implementation of industrial 3D printing with standards and digital solutions at the 2nd TÜV SÜD Additive Manufacturing Conference.  Set to take place in Munich from February 6-7th, TÜV SÜD aims to explore and discuss industrial readiness. Up for discussion at the event are topics including how […]

A tiny purple dragon companion robot with Adafruit Feather #Feather #NeoPixels #Robots @the_gella

Angela Sheehan posts on Twitter her new automated companion. Her purple robot is incredible. The electronics are based on the Adafruit Feather M0 with radio microcontroller board with NeoPixel lights and a capacitive touch sensor on the forehead. Servo motors flaps the wings and tilt the head.

Angela has programmed her companion to work with her color stealing fairy wand, developed previously with an Adafruit Flora color sensor. The detected color is sent over to the companion via radio.

See Angela’s Twitter Feed for the steps she has documented. Wonderful work!

 

3D Hangouts – Cubes, Coasters and Spaceships

Live stream starts on Wednesday, January 15 2020 at 11am ET.

Learn guide, code and build photos
https://youtu.be/1sDSVTlRim0
https://learn.adafruit.com/neopixel-infinity-cube/

ItsyBitsy nRF52840
https://www.adafruit.com/product/4481

Mini Skinny NeoPixel Strips
https://www.adafruit.com/product/2954

Acrylic See-through mirror
https://amzn.to/39WOQp3

2200mAh USB Battery Pack
https://www.adafruit.com/product/1959

This project was inspired by ThomasJ152’s Infinity Cube
https://www.instructables.com/id/Easy-Infinity-Cube/

CircuitPython Downloads: https://circuitpython.org/
https://www.youtube.com/adafruit/live #3DHangouts

3D Parts Library on GitHub
https://github.com/adafruit/Adafruit_CAD_Parts

Layer by Layer – Spheres and Cylinder Snap Fits – https://youtu.be/51pnOzYpGCA

Timelapse Tuesday:
Mandalorian Razor Crest Ship – aaskedall
https://www.thingiverse.com/thing:3989331
https://youtu.be/1dsXK_hyvfE

1/15/2020 community makes:

https://www.thingiverse.com/make:750008 sand toy
https://www.thingiverse.com/make:750362 guardian zelda sword
https://www.thingiverse.com/thing:4098200 Mario’s Cappy

Analyzing the economic impact of the ‘Neighborhood 91’ additive manufacturing hub at Pittsburgh International Airport

Additive manufacturing consultancy firm The Barnes Group Advisors (TBGA) has released a study looking at the potential impact of an additive manufacturing production campus for the Pittsburgh International Airport. Known as Neighborhood 91, the 3D printing hub is planned for construction at the airport sometime in 2020 and will form part of the Pittsburgh Airport […]

In-Q-Tel and 3D Printing, Part 2: What Does It Want with 3D Printing?

Knowing some of In-Q-Tel’s backstory, we wondered specifically what the firm was looking for from Voxel8, Arevo and Fuel3D. We have so far received responses amounting to “no comment” from each firm, though Arevo was the only one to say explicitly that it could not comment on their relationship with In-Q-Tel. As for Voxel8 and Fuel3D, we simply haven’t heard back.

There are, of course, potential applications that we could theorize for each startup. Voxel8 has at least been public about its work with another government non-profit, the MITRE Corporation. With the MITRE Sensors and Electromagnetic Systems Department, Voxel8 assisted in the creation of wideband phased antenna arrays using the startup’s initial Developer’s Kit 3D printer. This system was capable of printing plastic simultaneously with conductive silver ink. The antenna was reportedly less expensive, lighter and better performing than a metal predecessor made with traditional techniques. Due to 3D features of the antenna, it made more sense to use 3D printing to fabricate the array than other methods.

Interestingly, in an In-Q-Tel report from 2012, one chapter’s authors proposed the intelligence community might use an electronics 3D printer for the fabrication of embedded electronics, including antenna arrays. Other applications of 3D printing described by the authors were the ability to incorporate “individualized electromagnetic or optical sensor signature[s]” into printed parts. It’s quite possible, then, that the work Voxel8 performed with MITRE is similar to what the intelligence community is looking for out of the startup.

As for Arevo and Fuel3D, there is less evidence for what applications the technology might serve—or, really, the applications are pretty broad. Arevo is dedicated to 3D printing continuous reinforcement material, such as carbon fiber. This could mean 3D printing strong, durable, and lightweight structures for just about any use case, from unmanned aerial vehicles to more rugged cases for military equipment.

When Fuel3D announced its investment from the U.S. intelligence outfit, it was focused on its unique user-friendly 3D scanner capable of capturing a high-resolution, full-color 3D model in less than 0.1 second. This could be used for replacing parts out in the field of battle or performing facial recognition of persons of interest.

A rapid face scan from a Fuel3D scanner. Image courtesy of Fuel3D.

Interestingly, all three startups are currently involved in activities that seem about as far from military intelligence as one could imagine. Though Fuel3D originally showcased its Scanify product for facial scanning on a regular basis, it is now more focused on medical 3D scanning, specifically tracking tumor growth. However, it does still pitch facial scanning for the purchase of glasses. Arevo mostly demonstrates its composites printing for the fabrication of bicycle frames. Voxel8 is no longer publicly working on electronics 3D printing but is instead selling systems for 3D printing athletic wear.

It may be a cliché to point this out, intelligence organizations, and the CIA in particular, use any means possible to perform their operations. In at least one instance, In-Q-Tel was used to exploit its Silicon Valley investments to perform surveillance. In 2016, the CIA’s Open Source Enterprise contracted Dataminr through In-Q-Tel to sift through raw Twitter data. Tangentially related is the story of Narus, which supplied hardware capable of analyzing Internet communications, to AT&T that was then accessed by the NSA. Information retrieved by the Narus STA 6400 device could then be mined by Attensity, a firm invested in by In-Q-Tel.

Even if startups had no ethical qualms with the investment firm, one wonders if they might be troubled from a financial perspective. In a New York Post article that has since been scrubbed from the internet, but is preserved here, it is reported that “more than four dozen insiders” from In-Q-Tel may have been participating in a pump-and-dump scheme that involved boosting penny stocks and then selling shares for profit. The Post reported:

In the same way that In-Q-Tel invested in Electro-Energy when it was still privately held and preparing to go public through a “reverse merger” with a defunct penny stock shell company, the fund invested in Ionatron in October of 2003 when it was still privately owned and controlled by a businessman named Robert Howard.

The filings show that initially In-Q-Tel agreed to pay $500,000 for 1,028,076 shares, representing an oddly precise imputed price of 48.6 cents per share. Thereafter it merged with a failed penny stock in the weed killer and grass seed business and began trading in April of last year on the Over The Counter bulletin board at roughly $3 per share.

Relaying information from SEC filings, the Post writes that In-Q-Tel then backed out of its investment, arranging to settle with just 725,000 shares instead of the almost 1.03 million. Based on the obligatory employee fund system mentioned in part one, 75 percent of these shares were held by In-Q-Tel and the remaining 25 percent held by the employees in a for profit entity called the “In-Q-Tel Employees Fund LLC.”

All 725,000 shares were sold on March 18, 2005, triggering the stock to collapse, but netting a profit of 1,400 percent for the In-Q-Tel employees, according to The Post, with 17 taking home over $50,000 each. The author doesn’t claim that the pump-and-dump was intentional and suggests that In-Q-Tel may have merely pulled out over uncertainty about Ionatron’s technology. However, there are obvious issues that need to be considered with relation to public taxes financing the investment whims of a CIA-backed firm.

It is obviously under the discretion of any startup from whom they accept investments, but understanding the applications of a technology in its political context could be crucial to making such a decision. In fact, it might be because of the CIA’s role in global and national affairs that a business might choose to work with In-Q-Tel. If it isn’t, however, enterprising inventors might consider a letter written by the father of cybernetics, Norbert Wiener, and published in The Atlantic. Without posting the entire letter, here is a brief excerpt that captures the essence:

I have received from you a note in which you state that you are engaged in a project concerning controlled missiles, and in which you request a copy of a paper which I wrote for the National Defense Research Committee during the war…

[When you] turn to me for information concerning controlled missiles, there are several considerations which determine my reply. In the past, the comity of scholars has made it a custom to furnish scientific information to any person seriously seeking it. However, we must face these facts: the policy of the government itself during and after the war, say in the bombing of Hiroshima and Nagasaki, has made it clear that to provide scientific information is not a necessarily innocent act, and may entail the gravest consequences. One therefore cannot escape reconsidering the established custom of the scientist to give information to every person who may enquire of him. The interchange of ideas which is one of the great traditions of science must of course receive certain limitations when the scientist becomes an arbiter of life and death…

The practical use of guided missiles can only be to kill foreign civilians indiscriminately, and it furnishes no protection whatsoever to civilians in this country…

If therefore I do not desire to participate in the bombing or poisoning of defenceless peoples – and I most certainly do not – I must take a serious responsibility as to those to whom I disclose my scientific ideas. Since it is obvious that with sufficient effort you can obtain my material, even though it is out of print, I can only protest pro forma in refusing to give you any information concerning my past work. However, I rejoice at the fact that my material is not readily available, inasmuch as it gives me the opportunity to raise this serious moral issue. I do not expect to publish any future work of mine which may do damage in the hands of irresponsible militarists.

The post In-Q-Tel and 3D Printing, Part 2: What Does It Want with 3D Printing? appeared first on 3DPrint.com | The Voice of 3D Printing / Additive Manufacturing.

Multi-Material 3D Printing: Testing Graded Bio Inspired Composites

In the recently published ‘Fracture Behavior of Bio-Inspired Functionally Graded Soft-Hard Composites Made by Multi-Material 3D Printing: The Case of Colinear Cracks,’ researchers from Delft University of Technology (TU Delft) further explore the impacts of functional gradients in materials related to numerous technical applications, like aerospace or medicine.

In this study, the research team focuses on testing both stepwise and continuous gradients, pointing out that FGMs serve as ‘multi-phase’ composites which are supposed to fulfill mechanical, thermal, electrical requirements, and more. While FGMS can be applied to multiple disciplines, they are also used in the following:

  • Thermal barrier coatings
  • Piezoelectric devices
  • Thermoelectric devices
  • Non-uniform pressurized cylinders
  • Dental implants
  • Biocompatible graded hydrogels
  • Soft robotics
  • Tissue engineering scaffolds

FGMs are also seen in nature in hard tissue like bone and teeth and are used to advantage in modern applications as hard-soft interfaces can be eliminated—helping to avoid cracks, delamination, and harm to structural integrity.

“The concept of functional gradients is, therefore, one of the design motifs that has its roots in nature and can be implemented in the design of advanced functional materials with properties not achievable using homogenous materials,” stated the researchers.

FGMs also allow for better performance overall, the ability to customize materials for necessary applications, and promote greater longevity in products. As additive manufacturing continues to progress, there is much greater potential for creating FGMs that are both complex, as well as ‘precisely controlled.’

“During the last few years, advanced multi-material additive manufacturing techniques that allow for controlling the deposited material at the voxel level (i.e., length scales in the range of a few tens of micrometers) have been emerging through material jetting processes,” explain the researchers. “Using these emergent techniques, one can precisely control the spatial distribution of mechanical properties in three dimensions at very small scales.”

While it is known that FGMs cause the potential for stress, cracking, and more, the research team explains that it is important to understand FGM fracture behavior in 3D. They created fracture mechanics models to determine fracture modes and crack orientations, emphasizing the hard to soft stage. Ten samples were 3D printed for tensile testing, and divided into the following groups:

  • Abrupt hard–soft connections without a gradient
  • Three variations of stepwise graded structures (5-steps, 10-steps, 15-steps)
  • Continuously graded structures with two different gradient functions, namely sigmoid and linear functions

A schematic view of a single-edge notched tensile specimen with an initial crack colinear with the gradient direction (a) for non-graded (b) and graded (c,d) specimens. The transition zone between hard and soft phases had two gradient functions, namely, (i) step-wise (5 steps, 10 steps, and 15 steps) and (ii) continuous (sigmoid and linear). A schematic drawing showing the different gradient functions is presented in Figure S1 of the supplementary document. The size of the transition length between the hard and soft phases was also varied. Three levels were considered for the transition lengths, namely 5%, 25%, and 50% of the width (W) of the specimen. The design matrix is presented in (e). The white and black pixels respectively represent the hard and soft phases. The geometrical parameters were L=75 mm, W=75 mm, L0=100 mm, and a0=15 mm

Specimens were created using an Objet350 Connex3TM 3D printer, with VeroMagentaTM for hardness, and Agilus30TM Black for the soft phase.

Stress-strain was the same for all samples, with curves comprised of force being linearly increased during stretching, and then an abrupt decrease in force upon brittle fracture. During the second phase, force was sustained until the end, resulting in breakage at that point.

(a) Typical stress–strain curves of specimens with graded or non-graded interfaces. The inset shows a magnified view of the stress–strain curves until 4% strain. Full-field strain measurement using digital image correlation (DIC) of specimens with five steps (b) and linear (c) transition functions. DIC images show von Mises strain before maximum load (*), at the maximum load (**), and after maximum load (***). Digital microscopy images (200× magnifications) and the corresponding scanning electron microscopy (SEM) (35,000× magnifications) analyses of the fracture surface of the specimens with five steps and linear transition function are presented in sub-figures (d) and (e), respectively. The SEM images show the zoomed-in images of eight regions of structures. The scale bars for the digital microscopy images are on top of the corresponding images and underneath the SEM images. The hard phase is in white pixels, while the soft phase is in black. The size of the transition length was 100%W for the specimens in subfigures (b–e).

“We found that, unlike fracture in other directions, the fracture properties (e.g., fracture strain) that are measured for the cracks that are colinear to the gradient direction appear to improve when the material gradient is non-continuous,” concluded the researchers. “FGMs with a continuous gradient, on the other hand, showed slightly higher stiffness and fracture energies.”

“This suggests that the type of gradient function (i.e., continuous or non-continuous) may affect the fracture behavior of FGMs differently, depending on the orientation of the crack with respect to the gradient direction. More importantly, in addition to the type of gradient functions, the length of the transition zone between the hard and soft phases is the most critical parameter influencing the fracture resistance of FGMs to crack growth that needs to be included in the design of these advanced materials.”

As users use 3D printing increasingly more to create functional parts over prototypes, researchers and manufacturers delve further into strength testing of materials, whether testing with carbon, seeking rigidity without breakage, innovating with shape memory, and more.

What do you think of this news? Let us know your thoughts! Join the discussion of this and other 3D printing topics at 3DPrintBoard.com.

Bar-plots for the comparison of the mechanical properties of the specimens in ten groups, which include elastic stiffness (a), fracture stress (b), fracture energy (c), and final strain (d). The statistical parameters of the calculated fracture properties are summarized in Table S2 of the supplementary document. An ANOVA analysis and a post-hoc Tukey honestly significant difference (HSD) test were used to determine whether there was a significant difference between different groups. The comparison tables are presented in Tables S3–S6 of the supplementary document. The Ashby plots compare the fracture energy with elastic stiffness (e) and fracture stress (f). The plots show the mean and standard deviations for each data point. The fracture properties of the monolithic hard and soft specimens are adopted from [30].

[Source / News: ‘Fracture Behavior of Bio-Inspired Functionally Graded Soft-Hard Composites Made by Multi-Material 3D Printing: The Case of Colinear Cracks’]

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