3D printing pitfall?

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publiusr
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3D printing pitfall?

Post by publiusr »

It seems there may be a danger in 3D printing:
https://techxplore.com/news/2021-05-3d- ... tfall.html

"You end up with an incredible amount of residual stresses inside your piece," said Phan. "So it's sitting there, tearing itself apart. The residual stress could crack the part and lift it up during the build, which could actually crash the machine."

New paint
https://www.fastcompany.com/90634800/wo ... -every-day
Kekker
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Contact:

Re: 3D printing pitfall?

Post by Kekker »

I've seen a technique that is supposed to improve the strength of pieces. Basically you encase the work in plaster of paris, let it dry and heat the whole thing above the melting point of your print material. This essentially melts the material into a solid piece, and removes any areas of poor adhesion. It does have to be done with solid infill, as any hollows would collapse. The plaster makes it retain the final form, and once it's cool you just soak it in a slightly acidic water to remove the plaster.

From what I've seen it triples the strength of PETG, but doesn't do much for PLA.
publiusr
Posts: 18717
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Re: 3D printing pitfall?

Post by publiusr »

That's a good find.

A new glue!
https://phys.org/news/2021-04-strong-fa ... esive.html

Some other 3D printing news
https://phys.org/news/2018-06-d-printer-physical.html
https://advances.sciencemag.org/content/4/5/eaas8652

A team of researchers from MIT and Harvard University has come up with a way to get 3-D printers to print objects using data sets rather than geometric representations. In their paper published on the open access site Science Advances, the group describes their new technique and some of the ways they believe it could be used.

I wonder if that can be done with drawings--as here
https://www.trekbbs.com/threads/the-exc ... 623/page-3
https://www.trekbbs.com/threads/enterpr ... mp.300617/

Very good drawings.

But this here below is wild:
https://phys.org/news/2021-02-dynamic-d ... riven.html
In the paper, the researchers demonstrate several applications, including 3-D printing a customized vascular stent and printing a soft pneumatic gripper made of two different materials, one hard and one soft. A double helix and a tiny Eiffel Tower are two other printed examples in the study.

The first thing that popped into my mind was the Cygnus from THE BLACK HOLE.

With this technology not only could you do a model of the Cygnus with antenna made of soft flexible bits that won't break if a child tried to lay it down flat (ugh)--but you can warp it as was done with the Eiffel Tower.

Imagine a Vantablack sphere, with a distorted Primitive Dave Cygnus print spiraling into it!

The caption would read that a structural integrity field was used that failed during the meteor strikes....but even if it had worked...the gravity gradient was still too strong. This vantablack sphere would be backlit....with colored glass dome and ring to make it look more like the Kip Thorne version from INTERSTELLAR.
publiusr
Posts: 18717
Joined: Fri Jul 12, 2002 1:47 pm
Location: Alabama

Re: 3D printing pitfall?

Post by publiusr »

This may help make stronger toys and prints
https://www.sciencedaily.com/releases/2 ... 163519.htm

To develop a polymer that is both stiff and tough, the researchers looked to physical, rather than chemical bonds to link the polymer chains. These physical bonds, called entanglements, have been known in the field for almost as long as polymer science has existed, but they've been thought to only impact stiffness, not toughness.

But the SEAS research team found that with enough entanglements, a polymer could become tough without compromising stiffness. To create highly entangled polymers, the researchers used a concentrated monomer precursor solution with 10 times less water than other polymer recipes.


https://phys.org/news/2021-10-hybrid-3d ... nsion.html

New glue?
https://www.mcgill.ca/newsroom/channels ... lue-333875
https://phys.org/news/2021-10-photoinit ... tures.html
https://phys.org/news/2021-10-surface-c ... crets.html
https://phys.org/news/2021-10-corrosion ... ility.html
https://phys.org/news/2021-10-thin-atomic.html

Help for new materials
https://phys.org/news/2021-10-machine-l ... ls-3d.html
ttps://techxplore.com/news/2021-10-3d-print-personalized-wireless-wearables.html
https://phys.org/news/2021-10-method-ki ... icial.html
ttps://3dprintingindustry.com/news/columbia-engineers-cook-3d-printed-chicken-with-robotic-lasers-196509/

Tiny grippers
https://techxplore.com/news/2021-10-tin ... snail.html

Bama crooks
ttps://phys.org/news/2021-10-narratives-meth-users-alabama-photo-ethnography.html
publiusr
Posts: 18717
Joined: Fri Jul 12, 2002 1:47 pm
Location: Alabama

Re: 3D printing pitfall?

Post by publiusr »

Titanium prints
https://techxplore.com/news/2021-10-tit ... es-3d.html
ttps://phys.org/news/2021-10-nanotwinned-titanium-forges-path-sustainable.html

Moldable wood
https://www.bristol.ac.uk/news/2021/oct ... -wood.html
https://www.sciencedaily.com/releases/2 ... 135928.htm Wood knife

new light source
https://phys.org/news/2021-10-advanced- ... ogies.html
ttps://phys.org/news/2021-10-space-polymer-chains-affects-energy.html
ttps://phys.org/news/2021-10-ultrafast-quantum-materials.html

Self-healing smart-phone screens
https://phys.org/news/2021-10-self-heal ... reens.html
https://techxplore.com/news/2021-10-scr ... users.html

New screen
https://techxplore.com/news/2021-10-por ... e-red.html

Bendy LEDs
https://phys.org/news/2021-10-stretchy- ... eleds.html
ww.purdue.edu/newsroom/releases/2021/Q4/edgy-light-on-graphene-may-bring-new-one-way-information-routers.html

https://phys.org/news/2021-10-flexible- ... ments.html

The results of experiments at Rice and the South Dakota School of Mines and Technology, found in Advanced Materials, could be a boon for infrastructure—buildings, bridges and anything above or below the water made of steel—that requires protection from the elements.

Pearls
ttps://eandt.theiet.org/content/articles/2021/10/secrets-of-pearl-perfection-could-unlock-high-precision-nanomaterials/

Computing and robots
ttps://techxplore.com/news/2021-10-technique-automatically-hardware-components-robotic.html

3D prints to protect buildings
https://www.3dprintingprogress.com/arti ... -buildings
publiusr
Posts: 18717
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Location: Alabama

Re: 3D printing pitfall?

Post by publiusr »

3D prints you can wear
ww.labmanager.com/news/a-new-3d-printing-frontier-self-powered-wearable-devices-26968
ttps://techxplore.com/news/2021-10-deepdraper-technique-people.html
https://www.spacedaily.com/reports/Usin ... s_999.html

teach robots to model with this?
https://techxplore.com/news/2021-10-coh ... -6dof.html
This system, presented in a paper pre-published on arXiv, can track human users' movements using hand-tracking technology and provide tactile feedback to warn them about potential collisions with robots.

Shape shifting materials
https://phys.org/news/2021-10-shape-shi ... ities.html

Tube in tube construction
https://phys.org/news/2021-10-tube-in-tube-strong.html
https://techxplore.com/news/2021-10-spe ... lloys.html

A new way to produce light
https://phys.org/news/2021-10-visible.html
ttps://phys.org/news/2021-10-pre-existing-defects-semiconductor-materials.html
ttps://phys.org/news/2021-10-strategy-enable-coherence-properties-emitted.html
https://scitechdaily.com/5d-optical-sto ... lass-disc/

Plastics
https://phys.org/news/2021-10-plastic-d ... dable.html

New glue
https://nouvelles.umontreal.ca/en/artic ... ironments/
publiusr
Posts: 18717
Joined: Fri Jul 12, 2002 1:47 pm
Location: Alabama

Re: 3D printing pitfall?

Post by publiusr »

Form fitting material
https://techxplore.com/news/2021-11-d-e ... rming.html

Three-dimensional electronics have high customizability, 3D conformability and stretchability to form state-of-the-art stretchable electronics in response to the increasing demands to form curvilinear surfaces for wearable sensors. The process to directly develop 3-DE with high customizability, 3D conformability and stretchability on any complicated surface are in high demand. Among the many development methods, thermoforming is a manufacturing technique that uses thermoplastic deformation of a plastic film onto a 3D shaped mold with the advantages of low fabrication cost, large area scalability and quick prototyping.

Liqui-jets
https://phys.org/news/2021-11-team-real ... metal.html

More
https://phys.org/news/2021-11-ultra-fas ... nders.html
https://phys.org/news/2021-11-spiders-w ... veled.html
https://www.nanowerk.com/spotlight/spotid=59023.php

Scan tech
https://wonderfulengineering.com/this-n ... l-imaging/

Small dam model
https://interestingengineering.com/vide ... e-tutorial
https://interestingengineering.com/vide ... -slingshot
https://interestingengineering.com/this ... bble-wands
publiusr
Posts: 18717
Joined: Fri Jul 12, 2002 1:47 pm
Location: Alabama

Re: 3D printing pitfall?

Post by publiusr »

More 3D printing news:
https://phys.org/news/2021-12-microfoun ... cells.html

The pen also has potential applications that include molding, embossing, aerosol printing, and inkjet printing.

"By using our setup, or similarly designed ones, it will be possible to pattern into existing devices, microreactors, or hard-to-reach surfaces, on the fly and intuitively," said Hirtz. "This micropen can work with many different types of inks, in a timely and suitable way, enabling users to write in a controlled, microprecise level."

Color prints
https://phys.org/news/2021-12-customize ... tonic.html

This technology may be of use:
https://techxplore.com/news/2021-12-tec ... es-3d.html
https://techxplore.com/news/2021-12-rea ... world.html
https://techxplore.com/news/2021-12-hig ... oning.html

Nano-scribing
https://www.nanowerk.com/spotlight/spotid=59023.php
publiusr
Posts: 18717
Joined: Fri Jul 12, 2002 1:47 pm
Location: Alabama

Re: 3D printing pitfall?

Post by publiusr »

New ultra fast 3D printer!
https://techxplore.com/news/2022-01-ult ... anner.html

Imagine producing a copy of Albert Einstein's bust figurine equipped with soft cheeks, a solid forehead, and containing physical replica of the wonder of a brain just by pressing "print." Or even more impressive, an artificial heart with the same stiffness as a real one. That is just a few examples of 3D printed objects that researchers at Technical University of Denmark (DTU) are working to make a reality with a new 3D printing technology based on light.

To print aztek patterns?
https://phys.org/news/2022-02-butterfly ... tures.html
https://techxplore.com/news/2022-02-gel ... -soft.html
https://phys.org/news/2022-02-materials ... arent.html
https://phys.org/news/2022-02-scientist ... ounts.html
https://phys.org/news/2022-02-two-dimen ... onger.html
https://phys.org/news/2022-02-liquid-me ... ntact.html
https://phys.org/news/2022-02-bright-no ... heets.html
https://techxplore.com/news/2022-02-tea ... oints.html

3d print
https://techxplore.com/news/2022-01-3dp ... rials.html
ttps://phys.org/news/2022-01-scientists-atomically-thin-wires-ribbons.html

glue
ttps://phys.org/news/2022-01-zebra-mussels-sticky-industrial-coatings.html
ttps://phys.org/news/2022-01-scientists-sticky-dna-gel-blocks.html
publiusr
Posts: 18717
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Location: Alabama

Re: 3D printing pitfall?

Post by publiusr »

A new way to look for printing errors
https://techxplore.com/news/2022-03-fir ... rrors.html
https://phys.org/news/2022-03-neutrons- ... on-3d.html
https://phys.org/news/2022-02-scientist ... inted.html

Magnetic fields mapped in 3D
ttps://phys.org/news/2022-03-magnetic-fields-3d-device-storage.html

You might print out an aurora one day

Material that is tough and stretchy
https://phys.org/news/2022-02-material- ... iness.html
ttps://phys.org/news/2022-02-mechanical-metamaterials-toughness-criteria.html

New cement
https://phys.org/news/2022-03-mussels-u ... ement.html

New materials
https://phys.org/news/2022-02-stronger- ... astic.html

Temp-touchscreen
https://techxplore.com/news/2022-03-tem ... ulate.html

Flexible diamond
https://phys.org/news/2022-03-easier-fl ... monds.html

Soft fail
https://phys.org/news/2022-02-pressure- ... rials.html
ttps://phys.org/news/2022-02-colorfully-stressed-out-polymer-gels.html

Nano prints
https://phys.org/news/2022-02-d-microme ... issue.html
4D
ttps://phys.org/news/2022-02-d-x-ray-microtomography-high-temperature-electrochemistry.html
ttps://phys.org/news/2022-02-robotic-method-complex-van-der.html
publiusr
Posts: 18717
Joined: Fri Jul 12, 2002 1:47 pm
Location: Alabama

Re: 3D printing pitfall?

Post by publiusr »

Nano print and tiny camera
https://phys.org/news/2022-03-x-ray-len ... world.html

https://phys.org/news/2022-03-microscop ... -high.html

In terms of printer issues, here are some work arounds:
https://www.electronicsforu.com/news/wh ... of-another
FAMU-FSU College of Engineering researchers are working to improve 3D printing technology by teaching machines to learn from one another. They demonstrated how data from one printer may be used to increase efficiency and quality in other printers.

Also:
https://techxplore.com/news/2022-04-sma ... aster.html
Called SmartScan, the software demonstrated a 41% improvement in heat distribution and a 47% reduction in deformations in a recent study.

More:
https://phys.org/news/2022-04-team-meth ... ional.html

FL-3DP is an emerging technology with high potential that enables the 3D printing of multi-material functional components. It uses gel as a temporary suspension media in which inks are extruded and held in place. Once the inks are solidified, the gel can then be easily washed off.

This approach overcomes two major limitations faced in existing 3D printing technologies. Firstly, it enables the 3D-printing of materials that take a long time to solidify when extruded. Secondly, due to its ability to hold inks and maintain them in the liquid state, advanced geometries such as overhanging structures shapes with high-aspect ratios or fine combinations of multiple materials have now become a feasible option.


The very small
https://phys.org/news/2022-04-laser-add ... lline.html

New
https://techxplore.com/news/2022-04-anc ... rials.html

After the model learned kirigami design strategies from the smaller number of cuts, researchers used it to create eight and 10 cuts, producing a combination of possible stretches and cuts that numbered around a billion.


https://phys.org/news/2022-04-lustrous- ... stals.html
Sol: "If this thesis demonstrates anything, it should be that, while the future of 3D printing has been widely considered to be bright already, the colorful liquid crystals printed here, make it even brighter."
https://phys.org/news/2021-08-liquid-cr ... nk-3d.html


Pollen paper
https://techxplore.com/news/2022-04-sci ... nting.html
Scientists at Nanyang Technological University, Singapore (NTU Singapore) have developed a pollen-based "paper" that, after being printed on, can be "erased" and reused multiple times without any damage to the paper.


3D prints
ttps://phys.org/news/2022-03-optical-chips-layer-cake.html
ttps://phys.org/news/2022-03-scientists-bioprint-tissue-like-capable-complex.html

Flatness
ttps://phys.org/news/2022-03-band-falls-flat-flatness-materials.html

A 3D camera?
ttps://techxplore.com/news/2022-03-team-approach-enable-simple-cameras.html
publiusr
Posts: 18717
Joined: Fri Jul 12, 2002 1:47 pm
Location: Alabama

Re: 3D printing pitfall?

Post by publiusr »

Engineers at Stanford and Harvard have laid the groundwork for a new system for 3D printing that doesn’t require that an object be printed from the bottom up. (triplet fusion upconversion)
https://news.stanford.edu/press-release ... -printing/
https://phys.org/news/2022-04-3d.html

How to print a robot from scratch
https://www.sciencedaily.com/releases/2 ... 164923.htm
"I think there's a future where we could, for example, fabricate a complete system like a robot using this process," said Robert MacCurdy, senior author of the study and assistant professor in the Paul M. Rady Department of Mechanical Engineering.

High Precision
https://phys.org/news/2022-04-3d-techni ... dical.html
The research team used a type of 3D printing technology known as vat photopolymerization, which harnesses light to control the conversion of liquid resin material into its solid end state.

"After light projection, we can basically decide where to build the parts (of the chip), and because we use light, the resolution can be rather high within a layer.


For the very small
https://3dprintingindustry.com/news/eng ... ts-203915/
Look at the DSCarver for subtractive methods

Soft but strong
https://techxplore.com/news/2022-04-com ... -fast.html
Testing of the cell showed it created enough force (730 N) to split a common building brick.

Glass microstructures--perfect for the Cygnus
https://techxplore.com/news/2022-04-tec ... -rays.html

LEDs
https://www.chemeurope.com/en/news/1175 ... husks.html

Tailor made
https://www.dailyadvent.com/news/e723d3 ... -materials

Resin
ttp://www.starshipmodeler.net/talk/viewtopic. ... 9#p1804909
Last edited by publiusr on Sat May 14, 2022 9:46 am, edited 1 time in total.
publiusr
Posts: 18717
Joined: Fri Jul 12, 2002 1:47 pm
Location: Alabama

Re: 3D printing pitfall?

Post by publiusr »

In a paper published by Scientific Reports, lab researchers propose a diagnostic using surface acoustic waves (SAW), generated by laser-based ultrasound, that can reveal tiny surface and sub-surface defects in laser powder bed fusion (LPBF) metal 3D-printing.

https://phys.org/news/2022-04-laser-bas ... metal.html

Lawrence Livermore National Laboratory (LLNL) researchers have developed a new all-optical ultrasound technique capable of performing on-demand characterization of melt tracks and detecting formation of defects in a popular metal 3D printing process.

2D material
ttps://phys.org/news/2022-04-skyrmions-2d-material-advances-low-power.html

3D print coatings
https://phys.org/news/2022-04-antirefle ... tical.html

Printing nanodiamonds
https://phys.org/news/2022-04-nanodiamonds-quantum.html

Bone-like material
https://techxplore.com/news/2022-04-nat ... lanes.html
https://techxplore.com/news/2022-04-rob ... umans.html

Breakthrough
https://phys.org/news/2022-05-3d-printe ... icity.html
Researchers from Texas A&M University recently showcased superior tensile superelasticity by fabricating a shape memory alloy through laser powder bed fusion, nearly doubling the maximum superelasticity reported in literature for 3D printing.

This study was recently published in vol. 229 of the Acta Materialia journal.

The beauty of stretched sheets
https://phys.org/news/2022-04-kinematics-sheets.html

Rigid waterproof coating for paper
https://phys.org/news/2022-05-paper-pla ... ating.html

New wood glue
https://phys.org/news/2022-05-nontoxic- ... -acid.html
publiusr
Posts: 18717
Joined: Fri Jul 12, 2002 1:47 pm
Location: Alabama

Re: 3D printing pitfall?

Post by publiusr »

New type 3D prints
https://phys.org/news/2022-05-nature-in ... rials.html
The cellular forms of natural materials are the inspiration behind a new lightweight, 3D printed smart architected material developed by an international team of engineers. The team, led by engineers from the University of Glasgow, mixed a common form of industrial plastic with carbon nanotubes to create a material which is tougher, stronger and smarter than comparable conventional materials.

Artificial cilia
https://phys.org/news/2022-05-self-prop ... cilia.html

Light for toys
https://phys.org/news/2022-05-light-emi ... lable.html
A low-cost and easy-to-manufacture lighting technology can be made with light-emitting electrochemical cells. Such cells are thin-film electronic and ionic devices that generate light after a low voltage is applied.

The world of 2.5D
https://phys.org/news/2022-05-age-25d-materials.html
https://phys.org/news/2022-05-scientist ... rials.html

Shape memory alloy
https://phys.org/news/2022-05-memory-al ... ework.html

This may be of use to 3D printing:
https://phys.org/news/2022-05-scientist ... laser.html

Microfluidics
https://phys.org/news/2022-05-revolutio ... ation.html
https://medicalxpress.com/news/2022-05- ... -cost.html


Plastic breakdown
ttps://phys.org/news/2022-05-enzyme-pet-plastic.html
ttps://phys.org/news/2022-05-theory-reshape-polymer-superstructures.html
ttps://phys.org/news/2022-05-method-polymers.html
ttps://phys.org/news/2022-05-scientists-plastic-degradable-uv.html


Good defect?
ttps://phys.org/news/2022-05-good-defect-helicoidal-dislocations-layered.html
ttps://phys.org/news/2022-05-method-mechanical-tensile-micro-nanofibers.html
ttps://phys.org/news/2022-05-long-hypothesized-material.html
Last edited by publiusr on Fri May 27, 2022 4:01 pm, edited 1 time in total.
publiusr
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Re: 3D printing pitfall?

Post by publiusr »

New tech
https://techxplore.com/news/2022-05-3d- ... resin.html
A team of EPFL engineers has developed a 3D-printing method that uses light to make objects out of opaque resin in a matter of seconds.


New inkjet tech
https://techxplore.com/news/2022-05-eas ... lated.html
The new technique creates pixelated sheets of soft material as easily as pressing a button. Each pixel can be programmed uniquely to create composite shapes, colors and mechanical abilities. And it works with a class of materials—curable elastic polymers—that cannot be printed with conventional inkjets or 3D printers.

Nanolith
https://phys.org/news/2022-05-high-reso ... terns.html
The scientists primarily introduced the pulsed laser lithography method in this work to develop 3D liquid metal patterns with sub-micron level resolution, protected via a mechanically stable oxide package shell. Licong An highlighted the significance of this approach: "For the first time, the one-step lithography method can be directly used to pattern liquid metal,"

LED with candlelight-like glow
https://phys.org/news/2022-05-candlelig ... xible.html

Tough wood
https://www.newscientist.com/article/23 ... han-steel/
When two pieces of wood treated in this way are brought together, the nanofibrils bind to create what the researchers call a “healed” piece of wood. Although this no longer looks like natural wood, it has better mechanical properties
https://phys.org/news/2022-05-customiza ... n-lab.html

Soft robots
https://techxplore.com/news/2022-05-tea ... nergy.html
https://techxplore.com/news/2022-05-tin ... olled.html
ttps://phys.org/news/2022-05-exploring-titanium-implants-remarkable-biocompatibility.html

This robot has no brain
https://techxplore.com/news/2022-05-sof ... dance.html

bio-glue
https://medicalxpress.com/news/2022-05- ... aples.html

assemble at the smallest level
ttps://phys.org/news/2022-05-route-materials-tiny-particles.html
Last edited by publiusr on Fri Jun 03, 2022 3:44 pm, edited 1 time in total.
publiusr
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Joined: Fri Jul 12, 2002 1:47 pm
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Re: 3D printing pitfall?

Post by publiusr »

3D printing news.

3D prints not with light--but sound
https://techxplore.com/news/2022-05-pot ... er-3d.html
Most 3D printing methods currently in use rely either on photo (light)- or thermo (heat)-activated reactions to achieve precise manipulation of polymers. The development of a new platform technology called direct sound printing (DSP), which uses soundwaves to produce new objects, may offer a third option.

Melt electrowriting
https://techxplore.com/news/2022-06-3d- ... folds.html
This is a comparatively new additive manufacturing technology that uses high voltage to create accurate patterns of very thin polymer fibers. A polymer is heated, melted and pushed out of a printing head as a liquid jet to form the fibers.

4D printing
https://phys.org/news/2022-06-4d.html
As a result, they report in Advanced Functional Materials ("Direct Ink Writing of 4D Structural Colors") the development of a water-responsive cholesteric liquid crystal ink and the accompanying direct ink writing (DIW) procedure.

More
https://techxplore.com/news/2022-05-nat ... al-3d.html
https://medicalxpress.com/news/2022-06- ... cells.html
https://phys.org/news/2022-05-method-te ... rials.html

3D printing made visible
https://techxplore.com/news/2022-05-ins ... etals.html

New fabric
ttps://techxplore.com/news/2022-06-fabric-motion-electricity.html

On stains
ttps://phys.org/news/2022-06-surfaces-polymer-chains-uniform-particle-containing.html
the new method paves the way to reliable coating processes and inkjet-printed electronic devices in a wide range of advanced technologies, for example, solar cells, transistors or biosensors.

New display tech
https://phys.org/news/2022-05-titania-r ... doped.html
https://phys.org/news/2022-06-gold-nano ... cules.html

One line of code can help
ttps://techxplore.com/news/2022-06-adding-line-code-interactive-visualizations.html
ttps://techxplore.com/news/2022-06-visualization-accessible-low-vision-individuals.html
publiusr
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Joined: Fri Jul 12, 2002 1:47 pm
Location: Alabama

Re: 3D printing pitfall?

Post by publiusr »

Another breakthrough:
https://techxplore.com/news/2022-06-sin ... botic.html
A team of UCLA engineers and their colleagues have developed a new design strategy and 3D printing technique to build robots in one single step.
Bot-chip
https://techxplore.com/news/2022-06-neu ... robot.html

Wearable prints
https://techxplore.com/news/2022-06-wea ... ighly.html
The creation of high-resolution extrusion printing—think 3D printing but with ink that conducts electricity—has enabled University of British Columbia (UBC) researchers to explore the potential of wearable human motion devices. Their research is published in Carbon.

How 3D prints wear?
ttps://phys.org/news/2022-06-oxide-growth-additively-metals-supercritical.html
A new joint study by Southwest Research Institute and Sandia National Laboratories examines the differences in oxide film growth on additively manufactured (AM) metals and wrought stainless steel in a supercritical carbon dioxide (sCO2) environment.

3D printed food and more
https://techxplore.com/news/2022-06-sea ... roach.html
https://techxplore.com/news/2022-06-tec ... oking.html
https://phys.org/news/2022-06-unique-3d ... cells.html

New aerogel
https://phys.org/news/2022-06-aerogel-w ... rials.html
ttps://phys.org/news/2022-06-international-team-visualizes-properties-cell.html
ttps://phys.org/news/2022-06-colloidal-nanodiscs-3d-bioprinting-tissues.html

Wood armor
www.nanowerk.com/spotlight/spotid=60712.php

Better wigs
ttps://phys.org/news/2022-06-wig-chemistry.html

Heat power
https://techxplore.com/news/2022-06-ink ... wered.html

Plastic upcycling for 3D prints
https://techxplore.com/news/2022-06-clo ... astic.html
ttps://phys.org/news/2022-06-degradation-triggerable-plastic-vanillin.html
Last edited by publiusr on Sat Aug 20, 2022 1:01 pm, edited 2 times in total.
publiusr
Posts: 18717
Joined: Fri Jul 12, 2002 1:47 pm
Location: Alabama

Re: 3D printing pitfall?

Post by publiusr »

Printer deal
https://www.space.com/creality-ender-3d ... 40-dollars

Bending plastic with light
https://phys.org/news/2022-06-low-energy-plastic.html
Their research team ultimately collaborated on a new process that effectively harvests low-energy light and uses it to bend plastic films about the thickness of Scotch tape.



New plastic
https://phys.org/news/2022-06-pet-like- ... omass.html
https://phys.org/news/2022-06-upcycling ... nking.html
https://phys.org/news/2022-06-tiny-fish ... stics.html
https://phys.org/news/2022-06-gel-eggsa ... sfrom.html
https://phys.org/news/2022-06-scientist ... astic.html
https://phys.org/news/2022-06-architect ... imuli.html
In a paper published by Nature Reviews Materials, LLNL researchers provide an overview of the progress made in responsive architected materials that can morph into a particular shape and exhibit new properties when exposed to heat, magnetic or electrical forces, chemical or electrochemical reactions and mechanical deformations.

The plastic-eater
ttps://phys.org/news/2022-06-enzyme-human-salivary-microbes-decomposes.html

Kirigami
https://phys.org/news/2022-06-kirigami- ... rials.html
publiusr
Posts: 18717
Joined: Fri Jul 12, 2002 1:47 pm
Location: Alabama

Re: 3D printing pitfall?

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There is a new type of additive manufacturing being looked at for artificial hearts FRJS
https://medicalxpress.com/news/2022-07- ... otary.html

However, currently there is no manufacturing tool that can capture this complex arrangement. While common 3D printing methods can easily realize complex fiber arrangements, 3D printing cannot print nanofibers at a throughput relevant to tissue engineering.

The researchers thus proposed the process of focused rotary jet spinning. FRJS is an additive manufacturing method which uses centrifugal spinning to rapidly form fibers. The fibers are subsequently focused, aligned, and deposited onto targeted locations with a controlled airstream. By using airflow, this method allows thousands of micro/nanofibers to be simultaneously manipulated, which ensures high throughput. With the specially designed airflow, FRJS can manufacture 3D fiber constructs that are much more complex than current methods can create.
Another currently used method is fiber spinning, which allows for a faster production but not as much detail or complexity as FRJS. Thus, the researchers present FRJS as a method to make more complex creations in a timelier manner.


Artificial Muscles
https://phys.org/news/2022-07-scientist ... icial.html

3D knits?
https://techxplore.com/news/2022-07-sma ... users.html
By incorporating a special type of plastic yarn and using heat to slightly melt it—a process called thermoforming—the researchers were able to greatly improve the precision of pressure sensors woven into multilayered knit textiles, which they call 3DKnITS.

New ink
https://phys.org/news/2022-07-temperatu ... e-ink.html

Batteries that work in heat or cold
https://techxplore.com/news/2022-07-ene ... -cold.html

Gear based nanotech
https://phys.org/news/2022-07-gear-base ... rable.html
A team of researchers from the National University of Defense Technology, Hong Kong Polytechnic University and Karlsruhe Institute of Technology has developed a host of gear-based mechanical metamaterials that allow for the creation of configurable sheets. In their paper published in the journal Nature Materials, the group describes how they developed their sheets and possible uses for them.
https://phys.org/news/2022-07-universal ... otors.html

New laser cutting tech
https://phys.org/news/2022-07-gentler-p ... nique.html
publiusr
Posts: 18717
Joined: Fri Jul 12, 2002 1:47 pm
Location: Alabama

Re: 3D printing pitfall?

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Last edited by publiusr on Sat Aug 20, 2022 12:58 pm, edited 1 time in total.
publiusr
Posts: 18717
Joined: Fri Jul 12, 2002 1:47 pm
Location: Alabama

Re: 3D printing pitfall?

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Bottom up construction
https://phys.org/news/2022-07-bottom-up ... rials.html
https://phys.org/news/2022-08-significa ... ience.html
https://techxplore.com/news/2022-08-pat ... ttery.html
https://techxplore.com/news/2022-08-sta ... ccess.html

https://techxplore.com/news/2022-08-pro ... smart.html
Thirty seconds of sunlight could boost the battery life of future smartwatches and other wearables by tens of minutes, thanks to a renewable and rechargeable battery prototype developed by the University of Surrey.

Skin, wearables
ttps://techxplore.com/news/2022-08-stretchy-device-skinbut-health-brain-mimicking.html
ttps://techxplore.com/news/2022-08-flexible-device-harvests-thermal-energy.html
ttps://techxplore.com/news/2022-08-biofilm-capable-long-term-electricity.html
ttps://phys.org/news/2022-08-nanoparticle-based-material-antibiotics.html
ttps://phys.org/news/2022-08-methods-2d-material-analysis.html
ttps://medicalxpress.com/news/2022-08-wearable-technology-mental-skin.html

Smart books
https://techxplore.com/news/2022-08-aug ... paper.html

https://techxplore.com/news/2022-08-rou ... stors.html
Researchers from UNSW Sydney have developed a tiny, transparent and flexible material to be used as a novel dielectric (insulator) component in transistors. The new material would enable what conventional silicon semiconductor electronics cannot do—get any smaller without compromising their function.

New lighting system
https://phys.org/news/2022-08-smart-bas ... ately.html
Researchers have designed smart, color-controllable white light devices from quantum dots—tiny semiconductors just a few billionths of a meter in size—which are more efficient and have better color saturation than standard LEDs, and can dynamically reproduce daylight conditions in a single light.
https://phys.org/news/2022-08-nanoparti ... -cell.html
Last edited by publiusr on Fri Aug 05, 2022 4:18 pm, edited 7 times in total.
publiusr
Posts: 18717
Joined: Fri Jul 12, 2002 1:47 pm
Location: Alabama

Re: 3D printing pitfall?

Post by publiusr »

New printing tech
https://www.sciencedaily.com/releases/2 ... 133131.htm
https://techxplore.com/news/2022-08-3d- ... thods.html

The new approach, called Multiplexed Fused Filament Fabrication (MF3), uses a single gantry, the sliding structure on a 3D printer, to print individual or multiple parts simultaneously. By programming their prototype to move in efficient patterns, and by using a series of small nozzles - rather than a single large nozzle, as is common in conventional printing - to deposit molten material, the researchers were able to increase printing resolution and size as well as significantly decrease printing time.

"MF3 will change how thermo-plastic printing is done," said Cleeman, noting his team has applied for a U.S. patent for their technology.


Also in
https://phys.org/news/2022-08-3d-high-p ... trong.html
A team of researchers at the University of Massachusetts Amherst and the Georgia Institute of Technology has 3D printed a dual-phase, nanostructured high-entropy alloy that exceeds the strength and ductility of other state-of-the-art additively manufactured materials

Correcting print errors
https://techxplore.com/news/2022-08-mac ... -time.html
MIT researchers have now used artificial intelligence to streamline this procedure. They developed a machine-learning system that uses computer vision to watch the manufacturing process and then correct errors in how it handles the material in real-time.

On droplets
https://sciencex.com/news/2022-08-satur ... osits.html

New tech
https://phys.org/news/2022-08-data-driv ... yered.html
Piezoelectric materials can convert mechanical energy to electrical energy, and vice versa.
https://phys.org/news/2022-08-mechanica ... sives.html

Films from yore
https://phys.org/news/2022-08-repurpose ... etchy.html
By applying a 19th-century color photography technique to modern holographic materials, an MIT team has printed large-scale images onto elastic materials that when stretched can transform their color, reflecting different wavelengths as the material is strained.

Underwater tech
https://techxplore.com/news/2022-08-hum ... power.html
Last edited by publiusr on Sat Aug 20, 2022 12:57 pm, edited 2 times in total.
publiusr
Posts: 18717
Joined: Fri Jul 12, 2002 1:47 pm
Location: Alabama

Re: 3D printing pitfall?

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3D prints
https://phys.org/news/2022-08-3d-short- ... sites.html
https://www.llnl.gov/news/new-class-3d- ... etal-parts

self-healing coating
https://phys.org/news/2022-08-coating-m ... posed.html

patterns
https://phys.org/news/2022-08-patterns- ... dable.html

A simple way of sculpting matter
https://phys.org/news/2022-08-simple-sc ... mplex.html
https://techxplore.com/news/2022-08-pro ... ments.html
https://phys.org/news/2022-08-chemists- ... -feat.html
/phys.org/news/2022-08-graphite-hexagonal-diamond-picoseconds.html

New gel
https://phys.org/news/2022-08-stiff-ach ... ilage.html
https://phys.org/news/2022-08-ultra-thi ... pinal.html


optic skin
ttps://techxplore.com/news/2022-07-future-robots-electronic-skin.html
ttps://techxplore.com/news/2022-08-fabricate-chip-free-wireless-electronic-skin.html
ttps://techxplore.com/news/2022-08-scientists-inks-3d-printable-wearable-bioelectronics.html

Forever chemicals dealt with?
ttps://phys.org/news/2022-08-chemicals-simple-method.html
PFAS contains a long tail of unyielding carbon-fluorine bonds. But at one end of the molecule, there is a charged group that often contains charged oxygen atoms. Dichtel's team targeted this head group by heating the PFAS in dimethyl sulfoxide—an unusual solvent for PFAS destruction—with sodium hydroxide, a common reagent. The process decapitated the head group, leaving behind a reactive tail.
Last edited by publiusr on Sat Aug 20, 2022 12:56 pm, edited 2 times in total.
publiusr
Posts: 18717
Joined: Fri Jul 12, 2002 1:47 pm
Location: Alabama

Re: 3D printing pitfall?

Post by publiusr »

3D algorithm
https://techxplore.com/news/2022-08-alg ... rials.html
https://phys.org/news/2022-08-3d-positi ... lobal.html

A new use for old tech
https://techxplore.com/news/2022-08-com ... duals.html
lithophane—an old-fashioned art form—and 3D printing to turn scientific data into tactile graphics that glow with video-like resolution, enabling universal visualization of the same piece of data by both blind and sighted individuals.
https://www.youtube.com/watch?v=a-7O8C3Q7pQ

3D model of Megalodon
https://www.science.org/doi/10.1126/sciadv.abm9424
ttps://phys.org/news/2022-08-3d-megalodon-prey-size-entire.html

Styrene
https://phys.org/news/2022-08-recycle-p ... ducts.html

On droplets
https://phys.org/news/2022-08-big-splas ... shing.html
https://phys.org/news/2022-08-droplets- ... heory.html

Alloy printing
https://www.llnl.gov/news/new-class-3d- ... etal-parts
Last edited by publiusr on Fri Sep 09, 2022 3:01 pm, edited 4 times in total.
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