Foreign 3D printing media have also been paying attention to the progress of 3D printing companies, organizations and individuals in using 3D printing technology to combat COVID-19, and constantly updating it. Antarctic Bear has also been paying close attention to these developments recently, providing more references for the domestic. Let’s look at the latest progress on April 19, 2020.
Steve Cox, a 3D technical consultant, has released the design of an injection mold for manufacturing face mask headband. This mold is designed in Autodesk Fusion 360. Inventor is used to analyze the flow of polypropylene and the filling in the mold.
After the head of Milwaukee Police Department (MPD) asked for donations of personal protective equipment, a local 3D printing company called GSC stepped in and produced a new filter for the police force. MPD requires 600 new filters, including filter materials. Milwaukee Tools donated 600 HEPA filters, while Bradley donated 600 O-rings to seal them (and Viking Masek provided an additional 600).
GSC has made a prototype adapter for filters. In just five and a half days, the 3D printing company was able to make adapters on the spot and print them in 3D at 125 to 250 parts per day on its HP 5200 3D printer.
Portland’s 3D Printing Laboratory is currently printing 3D masks and eye patches for hospitals in Oregon. So far, 220 manufacturers and 380 printers have produced 5,000 masks for hospitals and partners.
Through the MakerForce.org platform, local hospitals can apply for mask donation, at which time community members can contact them and start making items. Using this method (you can learn more here), the team was able to complete 9,000 hours of work in less than three weeks and delivered 1,000 individually packaged masks in less than one week.
A team consisting of AFFOA, MIT, MIT Lincoln Laboratory, Lowell University in Massachusetts, and the Soldiers’ Center of the U.S. Army Operational Capability Development Command is developing a method to characterize and analyze materials and materials used during the popularity of COVID-19.
The objectives of the alliance include:
● Coordinate testing of medical supplies
● Evaluate products of international origin according to their legal titles
● Testing and analysis is devoted to the research work of product disinfection and reuse.
● Analyze raw materials and product prototypes of PPE to establish regulatory certification methods through NIOSH and FDA
● Analyze new filter media
● The team led by AFFOA is testing N95 respirators and masks, surgical masks, masks and isolation suits. Although testing does not provide certification or pre-certification, organizations can provide connectivity to NIOSH and FDA resources. For more information about this job, see here. These tests are currently provided free of charge, and the organization prioritizes the tests according to the needs of the COVID-19 epidemic:
Theken Group’s team of four medical equipment companies in Ohio developed a reusable, autoclavable titanium 3D printed N95 mask in less than 10 days. Based on the 3D scanning of human face, the FDM printer is first used to print the design of 20 iterations in 3D, and then the Arcam electron beam system is used to create the final parts. The goal of the equipment is to replace disposable masks with reusable masks, thus solving the problem of shortage of supplies.
The mask has now been approved by FDA, but some people have raised some questions about the feasibility of the device. Its weight is 60g, almost six times the weight of the traditional N95 mask (12g), which may bring a burden to the wearer. In addition, it is well known that the cost of metal powder used with a metal powder bed fusion machine is very expensive, and it can be considered that the cost is too high for these types of tasks.
Delta (from left to right): N95 respirator just printed out; The assembled N95 mask; Cowan Moore, chief technology officer of Theken Group, wore a 3D printed N95 titanium respirator. The picture is provided by Counter Group.
As the COVID-19 pandemic continues to sweep the world, we will continue to provide regular updates on what the 3D printing community is doing.
Compiled from: 3dprint