Color Candy Sorter #3DThursday #3DPrinting

DIYODE shares:

Do you save your favourite coloured M&M’s to eat last, or are you constantly fighting over different colours with family and friends? Let us introduce you to the DIYODE Arduino Controlled Lolly Sorter, designed to stop the battle of the colours.

Designed by our Staff Writer Johann Wyss, and published in our magazine Issue 19, February 2019.

The full article can be found here: https://diyodemag.com/projects/lolly_sorter

download the files on: https://www.thingiverse.com/thing:3403574


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Every Thursday is #3dthursday here at Adafruit! The DIY 3D printing community has passion and dedication for making solid objects from digital models. Recently, we have noticed electronics projects integrated with 3D printed enclosures, brackets, and sculptures, so each Thursday we celebrate and highlight these bold pioneers!

Have you considered building a 3D project around an Arduino or other microcontroller? How about printing a bracket to mount your Raspberry Pi to the back of your HD monitor? And don’t forget the countless LED projects that are possible when you are modeling your projects in 3D!

Turn Your Kid’s 2D Drawing Into A 3D Printed Sculpture

Although children drawings can be weird and hard to understand, there’s no doubt they are true masterpieces. Every parent has displayed their kid’s creations up on the fridge, at their desk at work, and some has even gotten a tattoo of them. But, have you ever considered turning those 2D masterpieces into 3D to display and preserve them? If not, you should take a look at Crayon Creatures’ creative idea.


Image via Cunicode

Crayon Creatures was created by Bernat Cuni, as one of his projects for Cunicode, his design studio. Crayon Creatures is a 3D printing service that provides you and your children with a 3D printed model of their drawings. The idea of this project is to bring kids’ hand drawn sketches to life by converting them into a digital sculpture using 3D printing technology that allows parents and children to exhibit them as a memento or souvenir anywhere.



Cuni got the idea when his daughter asked him to turn one of her hand drawn crayon sketches into a toy on his 3D printer. Even though Cuni’s daughter was satisfied with a monochrome plastic version of her drawing, he felt that there was something missing. We all know that kids’ drawings are very colorful, and for Cuni, “colors made children drawings so unique and expressive”. Cuni had to re-design the sketch as to 3D print it in color. Once satisfied with the results, he made sure to share his idea with his family and friends, and the rest of the world as well.

Image via Cunicode

To bring kids’ wildest imaginations to life, you simply have to upload an image of your kid’s sketch or drawing on the Crayon Creatures’ website. Once uploaded, Cuni takes the image in 2D and “inflates” them like a balloon. To understand the concept of “inflating” the 2D drawing, Cuni explains that he “defines the contour lines, creates a plane where the drawing is projected as a texture, then it is extruded, and finally some pressure physics is applied to soften the shape.”


Once the digital model is ready, Cuni uploads it to Shapeways because it uses a Z-Corp 3D printer that allows him to create the final physical model. The resulting sculpture is a symmetrical version of the drawing, which is two-sided. This means that you will be seeing the same drawing from both sides, even if the kid creates a character, it will have a face both in the front and in the back.

Image via Cunicode

The service is easy to use as long as you can scan the drawing. Once you upload the file, you have to pay the cost of the 3D printed sculpture and the shipping. The price is €199 plus €15 for international shipping. If you would like to include an additional drawing that appears on the same sketch, the price for the addition is €99.

The sculptures’ material is referred to as “sandstone”, a colored gypsum-based powder which is mixed with an adhesive. Then, it is coated with a cyanoacrylate clear coat to protect it. The size of each 3D printed drawing is around 10cm (4 inches), being the longest measure. Since the sculptures are hard and rigid (and fragile), Cuni recommends that kids do not play with them. It is not a toy, as Cuni expresses on his site, “it is a keepsake, memento, souvenir, reminder, remembrance, token.”

Image via Cunicode

Any drawing can get tattered after a while, and these 3D sculptures are a great idea for those parents who want to preserve their kid’s wildest imagination. Although Crayon Creatures is not completely kid-friendly, MOYUPI is the best option to turn your kid’s 2D drawing into a 3D toy they can actually play with. Another great option for those children who love to draw, instead of drawing on paper, they can simply try out 3Doodler Start and draw in the air! Or, if you have access to a 3D printer, why not 3D print the toys your children would like with Toy Maker?

Crayon Creatures | the making of The Elephant from cunicode on Vimeo.

[Sources: Cunicode, CrayonCreatures]

Japan: Researchers BioPrint & Implant Esophageal Cells Without Scaffolds

Researchers from Nagasaki University have recently made further progress in bioprinting—and without the use of scaffolds. As they become closer to their goal of 3D printing the human esophagus, the authors detail their current findings in Regeneration of esophagus using a scaffold-free biomimetic structure created with bio-three-dimensional printing.

Pointing out that they are not the first research team to attempt engineering tissue to repair defects of the esophagus, a vital tube that connects the throat to the stomach, the authors explain that their new method works because they have focused on diminishing previous issues with biological incompatibility, and challenges leading to problems like esophageal stricture.

The researchers, aware of the four cell types in the esophagus (squamous epithelial cells, fibroblasts, and smooth muscle cells), realized they had to create a structure that would not interfere with normal biological activity.

Study overview. Cells: fibroblasts,mesenchymal stem cells, smooth muscle cells, or endothelial cells were cultured respectively. Multicellular spheroids were created using mixed cell suspensions, and the artificial esophagus was then constructed with bio-3D printing using those spheroids. The artificial esophagus was matured in a bioreactor for a total of 4 weeks. Finally, esophageal transplantation of the artificial esophagus was performed.

The team began by acquiring the following:

  • Normal human dermal fibroblasts
  • Human esophageal smooth muscle cells
  • Human bone marrow-derived mesenchymal stem cells
  • Human umbilical vein endothelial cells

Esophageal-like tubes were bioprinted using a Regenova bio-3D printer and then transplanted into five male rats. They all survived the procedure, although the researchers noticed some smaller amounts of weight loss as they began their intense 30-day evaluation of the implanted structures. The rats quickly gained the weight back though, and then some. The transplanted tubes remained strong and stable, with no leaking or signs of tearing. The team noted that the rats were eating sufficient amounts, and even while exposed to gastric juices, the esophageal tube retained its integrity.

Transplantation of the structures. A. The surgical site of transplantation. B. The transplanted site at 30 days after transplantation. Arrows: transplanted site, Du: duodenum, E: esophagus, EG: esophagogastric junction, L: liver, St: stomach

Assessment of the structures at 30 days after transplantation.
A: The transplanted site. B: Hematoxylin and eosin (HE) staining at the site shown in A (yellow box). Scale bar = 500 μm. C-E: HE staining of the transplanted structure. Scale bar = 500 μm (C), 100 μm (D), and 50 μm (E). F-H: Immunohistochemical staining of the transplanted structure with anti-pan-cytokeratin. Scale bar = 500 μm (F), 100 μm (G), and 50 μm (H). I-K: Immunohistochemical staining of transplanted structure with anti-αSMA. Scale bar = 500 μm (I), 100 μm(J), and 50 μm (K). Arrows: transplanted structure, E: esophagus, St: stomach. Immunohistochemical staining of the transplanted structure with anti-HLA class 1 ABC. Scale bar = 200 μm (L), 100 μm (M).

Evaluations continued to be positive, with the 30-day mark reflecting structures ‘completely engrafted.’

“The esophageal mucosal epithelium extended into the lumen of the structure and covered its inner surface completely. Cells on the surface of the lumen expressed pan-cytokeratin. The expression of αSMA was also observed in the structure,” stated the researchers. “Expression of human HLA class I ABC was found only in the part of the transplanted structure, but there were no positive cells in the epithelial layer.”

“This means that the structure made of human cells was maintained in the rats’ body and the native rat epithelium extended on the transplanted structure after transplantation.”

Despite ultimate success in the research study, the scientists were met with some challenges and limitations; for instance, they were not able to use orthotopic transplantation successfully—and they believe it is a requirement for using this type of innovation in clinical applications. They also were unable to get data regarding neurogenesis and peristalsis of the artificial esophagus. The team realizes further studies and longer follow-up times are required—and eventually, an orthotopic transplantation model in large animals must occur.

“Although this work is our initial step of the study for the esophageal structure made with bio-3D printing system, it may contribute to the development of treatment for esophageal diseases that require transplantations,” concluded the researchers. “The structures created with bio-3D printing technology using a scaffold-free approach showed promise as a potential substitute for esophageal transplantation.”

3D printing has been an enormous boon to the field of medicine, and especially as continued strides in manufacturing new hardware, software, and materials offer so many options for improving (and sometimes even saving) the quality of life for so many patients. Researchers have recently created and 3D printed tracheas, a variety of facial prosthetics, and even skin. Find out more about the bioprinting of the esophagus for patients in need due to health problems or congenital defects here. 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.

[Source / Images: Regeneration of esophagus using a scaffold-free biomimetic structure created with bio-three-dimensional printing]

2019 3D Printing Industry Awards Trophy Design Challenge returns with Protolabs

Now in its third year, the 3D Printing Industry Awards will return to London on Thursday, 9th June, 2019. Not only is it now time to cast your vote to decide this year’s winners, we are also proud to announce the launch of this year’s Trophy Design Challenge. Sponsored for the second time by digital […]

New Project! PypPortal Wall Mount #3DPrinting #CircuitPython #IoT

This is a 3D printed wall mount for the PyPortal. The two part design features a hanging setup so it can be docked and undock. The mounting bracket can be attached to an existing light switch plate. We think this will be nice for IoT projects that need to be stationary.

Source files and documentation:
https://learn.adafruit.com/pyportal-wall-mount

Say hello to PyPortal! The easiest way to build your IoT projects with a touchscreen display! Make sure to walk through the PyPortal introduction guide and walkthrough the pages. It’ll get you setup with Circuit Python and a handful of demo code to play with!

Get Adafruit PyPortal
https://www.adafruit.com/product/4116
https://www.youtube.com/watch?v=9meeVehRS6A


649-1
Every Thursday is #3dthursday here at Adafruit! The DIY 3D printing community has passion and dedication for making solid objects from digital models. Recently, we have noticed electronics projects integrated with 3D printed enclosures, brackets, and sculptures, so each Thursday we celebrate and highlight these bold pioneers!

Have you considered building a 3D project around an Arduino or other microcontroller? How about printing a bracket to mount your Raspberry Pi to the back of your HD monitor? And don’t forget the countless LED projects that are possible when you are modeling your projects in 3D!

The Adafruit Learning System has dozens of great tools to get you well on your way to creating incredible works of engineering, interactive art, and design with your 3D printer! If you’ve made a cool project that combines 3D printing and electronics, be sure to let us know, and we’ll feature it here!

Additive World Conference 2019 Eindhoven Day One

Additive World Conference is a great conference in Eindhoven focusing on metal 3D printing. Organized now for the seventh time by metal 3D printer OEM Additive Industries, the summit brings together people interested in metal 3D printing from all over the world. With around 200 participants the show is small scale but the speakers are high caliber coming from the forefront of using metal printing in manufacturing. If you’re a firm interested in industrializing Additive Manufacturing/3D printing, I’d recommend attending this small but high impact conference. The Additive World Conference is now a two-day event with the first day focusing on speakers at a conference center and the second day focusing on a visit to Additive Industries and their manufacturing and R&D facilities.

At the beginning, Additive Industries co-founder and CEO Daan Kersten welcomed us to the event and there was a rather loud and bombastic movie. The first speaker was Manuel Michiels of Materialise and he spoke on Breaking Through the AM Case Barrier with Software Simulations and Automations. Manuel wanted to show how Materialise software is saving firms money in metal 3D printing. The presentation was full of interesting assumptions and calculations that gave a real insight in the cost structure of metal AM. He took us through a detailed cost analysis of EBM. He assumed that if you have a good utilization of 70% of your build volume you could do a 186 builds per year. He also assumed that the software prepping would take 300 minutes and the hardware preparations on the machine would take a 180 minutes. The build itself would take 30 hours and afterwards there would also be another 180 minutes hardware work which would include resurfacing the build plate. He assumed that the initial post-processing steps would cost you thirty minutes for HIP (Hot Isostatic Pressing) and a further 230 minutes to remove the support from parts and remove them from the build platform. He assumed a depreciation over five years for the printer and concluded that labor, the machine, and powder were the highest cost factors. Taking all of this into account he came up with a full build cost of 2322 euros ($2637). This is a great number to input on some spreadsheets to find out if 3D printing could make sense for your business case. The yearly costs were estimated to be 431,384 Euros per year which is much higher than some previously published operating cost numbers but in my mind a more realistic number. I would say that they didn’t take into account further processing such as tumbling and other surfacing steps but since these can vary enormously per part and application I understand why they didn’t include it.

He then went on to talk about how time on the machine is “holy” and all you can do to optimize parts and workflows will save you later on in the process. Some results that he could share was that selected customers had a 90% decrease in total data preparation time and a 20% decrease in powder consumption. He also disclosed that support failure in the number one issue that causes scrappage in 3D printed parts. Indeed a lot of builds fail due to support strategies. Recoater collision, also called recoater bump, was the next biggest cause of machine failure. This occurs when the recoater spreading out material hits the part and damages it. We mention and show you how to optimize to reduce that in in your metal 3D printing builds here. The third biggest cause was shrinklines in the part. He assumed that a varied production line may have a scrap rate of 15% which would mean an annual cost of 50,000 per machine. They managed to reduce this to 7.5% in select customers. We must point out that 15% is very high and one would not expect such a number in a setting where a firm is producing millions of similar parts. If you’re making millions of bridges and crowns, for example, their similarity would mean significantly lower scrap rate. Materialise itself is focusing very much on the disparate parts of Industry 4.0 the 3D printing software leader wants to connect PLM, distributed manufacturing and machine learning. By tying together 3D printing and existing businesses processes the company surely can help others integrate 3D printing into manufacturing.

Next up was Valeria Tirelli the CEO of Aidro. We mentioned before how Aidro is using 3D printing to make better hydraulics and how the firm made a better manifold for a Jaws of life through 3D printing and how they won last years Additive World Design for Additive Manufacturing Challenge. Aidro is an Italian family-owned firm that has looked at the hydraulics industry in a new light through 3D printing. Valeria mentioned that hydraulics has been the same for decades and showed some advertisements for hydraulics from the forties which looked remarkably similar to hydraulics today. She said that by implementing 3D printing they have been looking at how they generate ideas and products differently. They now focus on problem-solving and how to create “new shapes” that solve problems in completely new ways. “Thanks to new additive design, new shapes are now possible.” This changed the firm’s entire design approach and now “new solutions that seemed impossible are possible.”

One of the biggest impacts for them in hydraulics means that whereas traditionally channels are limited in how they can be designed and made this design area is now expanded. The channels in the parts which guide the flow of the liquids through the part are essential in determining the performance of the hydraulic component. Traditionally hydraulic components had a lot of right-angled components and channels. This meant that there was a reduction in flow and turbulence in the liquid. Flow determines the overall performance of the hydraulic part or manifold. Now with 3D printing, we can get round and curved channels inside of these parts which means that their performance is greatly enhanced. Rather than flow being interrupted by abrupt right angles that create turbulence, smooth channels guide liquids around curves and bends in a much more efficient way. The results are more flow and less turbulence.

In some cases Aidro has increased flow from 30% to 70% for example. The company now has changed its design approach to start with the functionality of a part, then they connect the channels and later make ports and cavities to complete the part. With one example part they were inspired by a pepper to make a part with a 50% weight saving and a 40% improvement to flow. Another manifold was inspired by a fennel to have a weight reduction of 70%. In a heat exchanger, they accomplished a 80% weight saving and reduced the overal part length from 1.5 meters to 20 centimeters. Valeria’s presentation was very exciting and points to a huge impact that 3D printing could have over the production of millions of hydraulic systems.

Dr. Tobias Brune of SMS group was next and he presented on the companies new test atomization plant. SMS’s atomization plant lets them produce their own 3D printing powders. He mentioned that there are over 6500 kinds of steel but that the 3D printing industry only uses very few of these. Their own atomizer lets the firm make and test many different metals and produce them on demand close to their plant. The design and manufacturing of their own atomizer is a huge investment for the German automotive manufacturing firm. It is insane in the cost outlay but indeed the only logical approach if you want to manufacture with 3D printing. With so much of the cost coming from overinflated material prices building an atomization plant will have huge speed and cost advantages in the long run. SMS Group is one of the most interesting firms in 3D printing at the moment. The company is making huge investments in trying to create turn key 3D printing plants for large scale manufacturing. Currently, there simply is no solution for a large company that wants to build a plant to 3D print millions of things. Your solution would be to learn on the job and take years. With SMS an automotive firm could work with them to quickly build or create a manufacturing solution. The firm wants to go further into “equipment as a service” and their Scale$Series turnkey 3D printing plants.

Dr.Kristian Arntz of ACAM Aachen Center for Additive Manufacturing and Fraunhofer IPT spoke about the Fraunhofer center at the University of Twente and how they’re expanding a network of research partners. Professor Ian Gibson of the Deptment of Design Production Management at the University of Twente spoke on the machinability of 3D printed parts and the custom creation of porous structures. With the creation of customized controlled porosity part performance can be enhanced. He made the point that most 3D printing implementation are because you want to either change your product or change your process or both. Additionally one could use 3D printing to “provide agility” by “reconsidering the entire process.” He reiterated that the wrong method would be to buy a printer first but partnering and understanding would a more fruitful approach.

Shelby GT500 Tested via Supercomputers & 3D Printing

The Mustang Shelby GT500 goes on sale later this year, offering the latest frills automotive engineering has to offer. This high performance vehicle is another notch in the long line of renowned Mustangs under Ford’s design ingenuity. This time around the preliminary testing and simulations brought in very high levels of virtual testing using supercomputers […]

The post Shelby GT500 Tested via Supercomputers & 3D Printing appeared first on 3D Printing.

NASA develops new copper alloy for 3D printing rocket components

Researchers from NASA have developed and 3D printed a new copper-based alloy for use in rocket propulsion components. GRCop-42, a high strength, high conductivity copper-based alloy, was created by a team from the NASA Marshall Space Flight Center (MSFC) in Alabama and the NASA Glenn Research Center (GRC) in Ohio.  The result metal powder used to produce […]

Microsoft, Siemens and Porsche contribute to further $82M funding for Markforged

Multi award winning 3D printer OEM Markforged has closed a Series D funding round with a value of $82 million. The round was led by fellow Bay State company Summit Partners, that provides growth equity investments for three areas of interest, including technology. As in the company’s earlier $30 million Series C round, Markforged received further financial […]