Audi 3D prints Grand Prix Racer

Image Posted on Updated on

Audi 3D prints Grand Prix Racer


Audi has used 3D printing to produce a scaled model of a historical Grand Prix racer Auto Union Type C from the year 1936.  Audi 3D printed different pieces of the model and assembled the car.  Audi used a 3d printer that uses aluminum or steel powder.  The3D printer uses a laser to melt the metal powder.  Layers and layers of the metal powder are melted to form parts of the car.  This process allows creation of parts having complex geometries that are very difficult to produce using conventional manufacturing techniques.  With the technology used, the 3D printer can produce objects that can be up to 24 cm long and up to 20 cm high.

Audi is looking forward to using this technology for mass production.  According to Dr Hubert Waltl, head of toolmaking for the Volkswagen group shown in the picture  below driving the replica car, “We are constantly exploring the boundaries of new processes.  One of our goals is to apply metal printers in series production.”



3D printed food for space missions.

Image Posted on Updated on

According to the Systems and Materials Research Corporation (SMRC),” they are developing technology for 3D printing food for space missions. Astronauts typically do not get the type of food that we take for granted here on earth every day. They get food in pouches that has very different flavor and texture compared to the food we eat daily on earth. Also storing the food in the pouches for long term causes degradation in its nutrients.
SMRC is using 3D printing technology to provide astronauts in space with food similar to what we eat here on earth. Also, their technology introduces nutrition supplements to compensate for any degradation due to long storage. Also, if someone fell sick in space, their technology will be able to 3D print therapeutic food.
SMRC has demonstrated the technology by 3D printing pizza. The 3D printer first dispenses pizza dough on a hot plate. The dough is cooked and then pizza sauce and cheese is dispensed. This technology could be critical if we had long term space missions in future, for example, a mission to Mars.¨

Complete meals and nutrition for long duration space missions.

3D Printing: Food in Space.

How 3D Printers Could Reinvent NASA Space Food.






3D printed hair.

Image Posted on Updated on



According to the researchers of Carnegie Mellon University,” they have developed a technique for 3D printing hair, fibers or bristles. The researchers used a fused deposition modeling (FDM) printer. The technique is similar forming thin strands by extruding glue from a hot glue thing and suddenly moving the hot glue away. Similarly, the technique extrudes molten plastic from the nozzle of the 3D printer and then moves the nozzle away rapidly.  The researchers call the technique fabrication.
3D printers typically can not move the nozzle up rapidly. However, they can move the the nozzle sideways with respect to the print bed rapidly.  Therefore, instead of moving the nozzle up, the researchers moved the nozzle sideways.  The amount of molten plastic extruded and the speed with which the nozzle is moved away can be varied to control the thickness of hair generated. These parameters are programmed into the 3D printer.

The technique presently creates hairs strands by strands. Therefore, the process is slow and takes 20-25 minutes to generate hair on 10 square mm2. Different types of material can be extruded from the 3D printer to create hair having different properties. The technique can be used to add hair to 3D printed objects, for example, hair on a head, whiskers, or hairy tails.¨

3D Printed Hair: Fused Deposition Modeling of Soft Strands, Fibers and Bristles.

Carnegie Mellon Fur-bricates Hair With Inexpensive 3-D Printer.


Click to access 3dprintedhair.pdf





3D printer for living tissue.

Image Posted on Updated on

According to Danny Cabrera, co-founder of Biobots, “As soon as you get a BioBot, you can print something. What we’re doing is we’re saying anybody can do this. [It’s] this MakerBot of biology idea.”

According to the Biobots,” a Philadelphia-based startup has developed a desktop 3D printer for printing biomaterials. The 3D printer called BioBot 1 was demoed at TechCrunch Disrupt NY in May 2015. Biobots was found the most innovative startup out of 48 startups at the SXSW Accelerator in Austin.

Biobot 1 uses a compressed air pneumatic system that allows it to precisely control the printing operation.  Biobots has developed biomaterial that is placed in the syringe along with cells for printing. The biomaterial hardens as it is extruded.  Biobot 1 uses visible blue light to cure the biomaterial. Unlike UV light, visible blue light is not harmful to living tissue. The technology can be used to 3D print living tissue such as cartilage, bone, or liver. The technology can find valuable applications in the clinical development of the drug.

Biobots aims at bringing down the cost of bioprinting significantly. Typical bioprinters cost in the range of hundred thousand dollars. Biobots managed to bring down the cost by an order of magnitude. Biobot 1 is also designed for ease of use.¨

The world’s only six-axis 3D bioprinter.

Meet BioBot, the ‘MakerBot of biology.’

BioBots Is A 3D Printer For Living Cells.

Bioprinter startup BioBots wins ‘Most Innovative’ at SXSW Accelerator.

3D printed microscopic robotic fish.

Image Posted on Updated on

According to the researcher Wei Zhu, “developing the technology Nano-engineers at the University of California,  San Diego, has been able to 3D print microscopic robots. They developed tiny robots shaped like fish. These are called microfish and are smaller than the width of human hair. Nanoparticles are added to various parts of the microfish to make them functional.  Platinum nanoparticles installed in their tails help them propel forward. Magnetic nanoparticles installed in their head can be used to steer them.

The microfish are developed using a 3D printing technology called microscale continuous optical printing. This technology allows 3D printing hundreds of microfish within seconds. The shapes of the microbots to be changed, for example, to experiment with different shapes of fish such as sharks vs. ray fish, or experiment with other shapes such as birds.

We have developed an entirely new method to engineer nature-inspired microscopic swimmers that have complex geometric structures and are smaller than the width of a human hair. With this method, we can easily integrate different functions inside these tiny robotic swimmers for a broad spectrum of applications. For example, toxic neutralizing particles can be included in the microfish to use them for detoxifying liquids. In future, this technology may allow delivery of medicine to specific parts of the body via a bloodstream.¨


3D-Printed Artificial Microfish. Advanced Materials. 2015

These microscopic fish are 3D-printed to do more than swim.

Microscopic 3D-Printed “Smart” Fish Nanobots to Swim in Bloodstream & Remove Toxins.


Robotic Drugs? 3D-Printed ‘Fish Bots’ Made With Platinum Nanoparticles Can Swim Through Blood To Remove Toxins.

3-D-Printed Tiny Fish Could Be Used for Drug Delivery.


3D printed human tissues using DNA.

Image Posted on Updated on

As mentioned by Professor Gartner of UCSF, ¨have developed a technique to build tiny models of human tissue called organoids. The technique uses DNA to guide the assembly of cells into organoids. This technique is called DNA Programmed Assembly of Cells (DPAC). The research team created several organoid arrays mimicking human tissues such as mammary glands. The research was published in the journal Nature Methods on Aug. 31, 2015.

This technique incubates cells with snippets of single strands of DNA  The DNA attaches to the cell’s outer membrane. The incubated cell attaches to other cells that are incubated with matching DNA strands. In other words, the cell doesn’t attach with other incubated cells if their DNA sequence does not match. A cell can be incubated with more than one type of DNA cells. This allows the cell to attach to different types of cells. This technique is similar to playing with Legos. A lego piece can attach to other lego pieces if they have matching sides. This simple trick allows lego pieces to be combined to build a very large variety of toys.  Similarly, DPAC uses DNA strands attached to cells to create different types of organoids.¨


Building Human Breast Tissue, Cell by Cell.


DNA-guided 3-D printing of human tissue.


3D Tissue Printing Using a DNA Guidance System.


Researchers Discover Way to Print Out Human Tissue.


Programmed synthesis of three-dimensional tissues.

Inside 3D printing conference 2015 in Shanghai.

Image Posted on Updated on



Inside 3D Printing Conference and Expo is the leading B2B trade show in 3D printing. 2015 Inside 3D Printing Conference and Expo are from December 8-10, 2015 in Shanghai. It includes two days of conference sessions, and three days of exhibitions presenting the latest 3D printers and services. The session topics include business, manufacturing, medicine, aerospace, among others.  Inside 3D Printing provides valuable networking opportunities.  It showcases an exhibit hall with the latest 3D printing materials, services, and products in action.






3D Printed tissues using MakerBot.

Image Posted on Updated on

The human body can repair small tissue damages by itself.  However, the human body has its limits and cannot fix several types of damages. For example, the human body is unable to fix several hearts, kidneys, liver problems, and so on. These problems are fixed by performing organ transplants.

Professor Adam W. Feinberg´s group at Carnegie Mellon is performing research that one day could make it unnecessary to transplant organs. Instead, the required organs will be 3D printed. Professor Feinberg’s group is using MakerBot’s 3D printers for 3D printing tissues.

The technology can best be described in the words of Professor Feinberg, “The challenge with soft materials — think about something like Jello that we eat — is that they collapse under their own weight when 3-D printed in air. So we developed a method of printing these soft materials inside a support bath material. Essentially, we print one gel inside of another gel, which allows us to accurately position the soft material as it’s being printed, layer-by-layer.”

One important aspect of this research is that it is based on the use of off-the-shelf 3D printers and not conventional bioprinters. These off-the-shelf 3D printers cost in the range of a thousand dollars which is much more affordable compared to typical bioprinters that cost in the range of a hundred thousand dollars.  Also, the research group is using open-source software and releasing their 3D printer designs under an open-source license.