Tech Briefs Magazine - May 2021 - 48
Manufacturing &
Prototyping
MANUFACTURING AND PROTOTYPING CHANNEL
Sponsored by
They also envision that the 3D-printed technology could be used
to heal bones that have to be cut out for cancer treatment, for
spinal fusion procedures, and to build up weakened jaw bones
ahead of a dental implant.
By changing the composition of the technology's 3D-printed
materials, it could also be used to build or repair soft tissues.
With significantly more research, the researchers hope the
modular microcage approach could even be used to make
organs for transplant.
For more information, contact Franny White at whitef@ohsu.edu;
503-494-8231.
2D Materials Capable of
Forming Complex 3D Shapes
Synthetic materials can mimic how living
organisms expand and contract soft
tissues, achieving complex 3D movements
and functions.
FEATURED SPONSOR VIDEO:
Industrial 3D Printing with Selective Laser
Sintering
University of Texas, Arlington
Selective laser sintering is an additive manufacturing process that uses
actual thermoplastic and elastomeric materials to produce parts with
good mechanical properties.
www.techbriefs.com/tv/industrial-SLS
A Moving Pin Platform
for 3D Printers
Reduces Waste
A new, sustainable take on the 3D
printer eliminates the need for
printed supports. A dynamically
controlled surface made of
movable metal pins holds printed
layers in place.
www.techbriefs.com/tv/
Sustainable-3Dprinter
RF-Grasp Robot
Finds and Grasps
Hidden Objects
MIT researchers are combining
vision with RF sensing so that
robots can find and handle
hidden objects. See how " RFGrasp " technology can be used in
warehouses and manufacturing.
www.techbriefs.com/tv/
RF-Grasp
Smart Harvester
Captures Sunlight and
Sends It Underground
A " smart' device from NTU
Singapore harvests daylight and
relays it to underground spaces,
reducing the need to draw on
traditional energy sources for
lighting.
www.techbriefs.com/tv/
Daylight-Harvester
www.techbriefs.tv
48
R
esearchers have developed a technique that programs 2D
materials to transform into complex 3D shapes. Programming thin sheets, or 2D materials, to morph into 3D
shapes can enable new technologies for soft robotics, deployable systems, and biomimetic manufacturing, which produces
synthetic products that mimic biological processes. The 2D
material programming technique allows the team to print 2D
materials encoded with spatially controlled in-plane growth or
contraction that can transform to programmed 3D structures.
There are a variety of 3D-shaped 2D materials in biological
systems that play diverse roles. Biological organisms often
achieve complex 3D morphologies and motions of soft, slender
tissues by spatially controlling their expansion and contraction.
Such biological processes inspired the team to develop a
method that programs 2D materials with spatially controlled inplane growth to produce 3D shapes and motions.
The researchers developed an approach that can uniquely
create 3D structures with doubly curved morphologies and
motions commonly seen in living organisms but that are difficult
to replicate with manmade materials. They were able to form 3D
structures shaped like cars, stingrays, and human faces. To physically realize the concept of 2D material programming, they
used a digital light 4D printing method they developed.
The 2D printing process can simultaneously print multiple
2D materials encoded with individually customized designs
and transform them on demand and in parallel to programmed 3D structures. The approach is scalable, customizable, and deployable and can potentially complement existing 3D-printing methods.
The team also introduced the concept of cone flattening,
where they program 2D materials using a cone surface to
increase the accessible space of 3D shapes. To solve a shape
selection problem, they devised shape-guiding modules in 2D
material programming that steer the direction of shape morphing toward targeted 3D shapes. Their flexible 2D-printing
process can also enable multi-material 3D structures.
For more information, contact Herb Booth at hbooth@uta.edu;
817-272-7075.
Tech Briefs, May 2021
Cov
ToC
http://www.techbriefs.com/tv/industrial-SLS
http://www.techbriefs.com/tv/Sustainable-3Dprinter
http://www.techbriefs.com/tv/RF-Grasp
http://www.techbriefs.com/tv/Daylight-Harvester
http://www.techbriefs.tv
http://www.abpi.net/ntbpdfclicks/l.php?202105TBNAV
Tech Briefs Magazine - May 2021
Table of Contents for the Digital Edition of Tech Briefs Magazine - May 2021
Tech Briefs Magazine - May 2021 - Intro
Tech Briefs Magazine - May 2021 - Sponsor
Tech Briefs Magazine - May 2021 - Cov1
Tech Briefs Magazine - May 2021 - Cov2
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