3D printers

04/11/2022

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19/07/2022

08/06/2022

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16/03/2022

Gujarat: Indian Army Creates First-ever 3D Printed Houses In Gandhinagar

For the very first time, the Indian army has constructed 3D printed houses for soldiers in Gujarat. The Military Engineering Services (MES) completed the first-ever 3D printed houses at South Western Air Command at Gandhinagar.
According to ANI, using the 3D rapid construction technology helped the MES construct two fully 3D concrete printed, modern-day dwelling units with green building concepts in only four weeks.

These 3D printed houses were inaugurated in presence of Engineer-in-Chief Lt Gen Harpal Singh.

24/01/2022

3D printed anatomical models developed by rapid prototyping service provider Laser Modelling Israel (LMI) have aided surgeons in a complex segmentation surgery for conjoined twins.

Produced using HP’s Multi Jet Fusion (MJF) technology, the intricately detailed 3D printed models were practiced on by surgeons before performing the surgery, which was set to be extremely difficult with multiple complications.

“HP’s 3D printing technology is not only hugely advantageous to the medical work we do, but also for the other industries we work for,” said Arie Kalo, Founder of LMI. “I find it extremely rewarding seeing our products and solutions coming to life.

Separating conjoined twins with 3D printed models

One particularly significant project within which LMI has deployed its medical expertise is the breakthrough segmentation surgery for two conjoined twins, who were conjoined at the head. As part of the operation’s preparation, LMI worked with Limor Haviv, a surgical 3D printing specialist and founder of surgical 3D printing firm 3D4OP.

Haviv works in-house as a surgical specialist in hospitals across Israel and helps surgeons to prepare for surgeries by designing models based on patients’ CT and MRI scans. LMI works with her on a regular basis to print her designs on its fleet of HP MJF printers, enabling Haviv to deliver medical models quickly to hospitals when they are needed.

For the segmentation surgery, LMI and Haviv worked together to design and print a model of the twins using a HP MJF 4200 machine, and Pl12 and CPU materials. The partners produced the body, skin, and skull of the model using HP’s 3D printing technology, whilst the more detailed parts, such as the veins, were fabricated using a softer material.

The models were fabricated so that they could be connected by magnets and be fully moveable, in order to enable the surgeons to simulate the surgical procedure as realistically as possible.

According to LMI, MJF technology was ideally suited to this particular application, as parts produced via the technology are affordable and can be produced quickly and repeatedly. In the case of the twin’s segmentation surgery, this was a key benefit as LMI could rapidly produce different-sized models as the twins grew.

The MJF 4200 enabled multiple models to be produced in one assembly, therefore eliminating the need to print numerous separate parts which would slow down the production process.

An additional benefit of leveraging MJF technology for the fabrication of the models was the materials used, which allowed for the model to be painted in the color of skin tones. The material also enabled the model to be sterilized and therefore be safely placed in the vicinity of the operating area.

“The resolution of HP’s technology is amazing,” said Haviv. “It allows us to see all of the intricate detail such as small bones. The density of each bone can also be simulated according to each patient, which is hugely beneficial to the medical staff.”

* REFERENCE - 3dprintingindustry.com

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27/12/2021

Virginia family gets keys to Habitat for Humanity's first 3D-printed home in the US

(CNN)One Virginia family received the keys to their new 3D-printed home in time for Christmas.

The home is Habitat for Humanity's first 3D-printed home in the nation, according to a Habitat news release.

Janet V. Green, CEO of Habitat for Humanity Peninsula and Greater Williamsburg, told CNN it partnered with Alquist, a 3D printing company, earlier this year to begin the process.
The 1,200-square-foot home has three bedrooms, two full baths and was built from concrete.

The technology allowed the home to be built in just 12 hours, which saves about four weeks of construction time for a typical home.

April Stringfield purchased the home through the Habitat Homebuyer Program. She will move in with her 13-year-old son just in time for the holidays.

10/07/2021

World's first 3d printed school:

14Trees, a CDC joint venture with construction company Holcim, builds world’s first 3D-printed school
Built with minimal material use and carbon footprint at record speed
Potential to bridge world’s infrastructure gap at scale.

The school was built in Malawi’s Salima district (pop. 38,000), and its walls were printed in just 18 hours, compared to several days with conventional building materials. The school has this week been officially transferred to the Kalonga village community in the Yambe zone of Salima district. Children began learning in their new school on June 21. The school is proof that 3D printing can play a key role in bridging our world’s education infrastructure gap by building high-quality classrooms for children in a sustainable, affordable and fast-paced way at scale.

Miljan Gutovic, Region Head of Europe, Middle East and Africa at Holcim Group: “I am very proud of how our colleagues at 14Trees have deployed cutting-edge 3D printing technology to solve such an essential infrastructure need. Now that we’ve proven the concept in Malawi, we look forward to scaling up this technology across the broader region, with projects already in the pipeline in Kenya and Zimbabwe.”

Tenbite Ermias, Managing Director, Africa, at CDC, said: “The rollout of 14Trees’ world-class, cutting-edge technology is going to have a tremendous developmental impact on Malawi and the wider region. It is a wonderful example of how we are investing in businesses that can support the UN’s Sustainable Development Goals.”

Juliana Kuphanga Chikandila, Primary Education Advisor, representing the Director of Education, Youth and Sports in Malawi: “Before, we had 12 schools in the Yambe zone; we now have 13 – with this new 3D printed school. To increase our supply of education to children, we need a total of four more primary schools in the Yambe zone, but as a district, we need approximately 50 more schools to serve those in need. I am very impressed by the new building – its durability and design provide the space and facilities that students did not have before; teaching and learning can now happen inside and outside the classroom. It is notably different from the schools being built in the Yambe zone and Salima district. This school will attract more students, and those learners that had left will return to education.”

Using proprietary LafargeHolcim ink, this innovative 3D printing process significantly reduces the time, cost and materials used for building housing and schools, while reducing their environmental footprint by more than 50 per cent compared to conventional methods. In Malawi alone, UNICEF estimates a shortage of 36,000 classrooms which would take 70 years to build using conventional methods. According to 14Trees, this infrastructure gap could be bridged in just ten years with 3D printing. Partnering with a range of NGOs, 14Trees is committed to solving this chronic shortage at scale and sustainably, starting with families and communities most in need.

These projects will sustain skilled job creation by hiring and upskilling local experts in dynamic roles such as 3D machine operators to material specialists working in partnership with local builders for carpentry, roofing, painting, and beyond. In addition to the school in Salima district, 14Trees also built its first 3DP prototype house in Lilongwe, Malawi, in just 12 hours, compared to almost four days using conventional methods.