Fast New 3D Printing Technique Shines Holograms into Resin (3dprintingindustry.com) 13
Can a new 3D-printing technique shorten 3D printing times to just seconds? A team of researchers in Europe has modified Tomographic Volumetric Additive Manufacturing, which can "create entire objects in one shot by shining light patterns into liquid resin," according to the 3D Printing Industry blog. (The liquid resin then solidifies when the light intensity is high enough...)
While this approach can fabricate support-free, micro-scale parts within tens of seconds, it is "highly inefficient." This is because under 1% of the encoded light reaches the resin vial. Conventional TVAM can also lead to unwanted distortions and poor resolution due to light blurring and projection artifacts. To address these limitations, the researchers developed HoloVAM, a new technique that uses a 3D hologram instead of conventional volumetric light projections. This approach reportedly boosts light efficiency by 20 times, resulting in faster and more accurate 3D printing.
According to their paper, published in Nature Communications, HoloVAM successfully fabricated several millimeter-scale objects in under 60 seconds with fine details as small as 31 micrometers...
They believe this new approach offers value for medical bioprinting applications, thanks to HoloVAM's use of "self-healing beams." These can generate and retain their shape when passing through materials, which is particularly valuable when 3D printing with cell-laden bio-resins and hydrogels.
Thanks to Slashdot reader BizarreVR for sharing the news.
According to their paper, published in Nature Communications, HoloVAM successfully fabricated several millimeter-scale objects in under 60 seconds with fine details as small as 31 micrometers...
They believe this new approach offers value for medical bioprinting applications, thanks to HoloVAM's use of "self-healing beams." These can generate and retain their shape when passing through materials, which is particularly valuable when 3D printing with cell-laden bio-resins and hydrogels.
Thanks to Slashdot reader BizarreVR for sharing the news.
Multipass! (Score:2)
Did we not see this in Fifth Element?
Some people are fucking smart. Not me, but some people.
How fast? (Score:1)
Re: (Score:3, Funny)
Re:Not 'Printing' (Score:4, Interesting)
According to both the summary and the article, it is additive.
Re: (Score:3)
You can't even spell the word you're wrong about.
Re: (Score:3)
It's additive. It's the same as resin 3d printing except that instead of shining a laser on one layer at a time they use a hologram to expose the whole volume at once.
Re: (Score:2)
This is, by definition, not "additive." Yes, that's the correct spelling.
Additive Manufacturing means "Additive manufacturing is the process of creating an object by building it one layer at a time." (https://mitsloan.mit.edu/ideas-made-to-matter/additive-manufacturing-explained)
In the case of this technology, while potentially very cool and useful, it is not "additive."
Link to Article (Score:3)
https://3dprintingindustry.com... [3dprintingindustry.com]
Their Benchy is rough but it's a prototype.
Re: (Score:2)
https://3dprintingindustry.com... [3dprintingindustry.com]
Their Benchy is rough but it's a prototype.
Does conventional printing give better results at that scale? (You did notice the scale in the photo; right? The whole Benchy is about 2500 microns long.)
Finally (Score:1)
Finally I'll get my Peachy printer!