Month: September 2019

3D printed a “rabbit-sized” heart

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According to BIOLIFE4D, “We have developed a proprietary bioink using a very specific composition of different extracellular matrix compounds that closely replicate the properties of the mammalian heart. Further, it has developed a novel and unique bioprinting algorithm, consisting of printing parameters optimized for the whole heart. Coupling its proprietary bioink with patient-derived cardiomyocytes and its enabling bioprinting technology, BIOLIFE4D is able to bioprint a heart that, while smaller in size, replicates many of the features of a human heart. With this platform technology in place, BIOLIFE4D is now well-positioned to build upon this platform and work towards the development of a full-scale human heart.”

 

BIOLIFE4D Just 3D Printed A Human ‘Mini-Heart’

BIOLIFE4D Reaches Groundbreaking Milestone and Successfully 3D Bioprints a Mini-Heart

https://english.tau.ac.il/

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Evonik invests in Chinese 3D-printing start-up making medical implants

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According to Ken Jin, co-founder, and chief technology officer of Meditool, “Meditool is one of the pioneers in developing 3D printed PEEK medical implants. Evonik has been our trusted partner in materials supply. The venture investment will be an extra boost to our endeavor to bring innovative solutions to patients and surgeons in China and the rest of the world.”
Evonik’s venture capital arm has already invested in two funds in China and with Meditool, it now has its first direct investment. Co-investors in Meditool include ZN Ventures, Morningside Ventures, and Puhua Capital.

Evonik invests in Chinese 3D-printing start-up making medical implants

EVONIK

The better way to 3D print organs

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According to the Wyss Institute for Biologically Inspired Engineering at Harvard University, John A. Paulson School of Engineering and Applied Sciences (SEAS) and co-first author Mark Skylar-Scott, Ph.D., a Research Associate at the Wyss Institute, “This is an entirely new paradigm for tissue fabrication. Rather than trying to 3D-print an entire organ’s worth of cells, SWIFT (sacrificial writing into functional tissue) )focuses on only printing the vessels necessary to support a living tissue construct that contains large quantities of OBBs, which may ultimately be used therapeutically to repair and replace human organs with lab-grown versions containing patients’ own cells.”

A Swifter Way Towards 3D-printed Organs

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A swifter way towards 3D-printed organs

Indian Institute of Food Processing Technology

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According to C. Anandharamakrishnan, Director of IIFPT and corresponding author of the paper published in the Food and Bioprocess Technology., “The printer is approximately the size of a mixie, weighing below 8 kg and can be carried around. It was also indigenously developed and completely fabricated in India. This brings down the cost to less than Rs.75,000, while most printers in the market are expensive and cannot be conveniently used for multi-material food printing applications.”

Get ready for 3D-printed cookies

Indian Institute of Food Processing Technology

Air Force lab and 3D printing

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According to Hilmar Koerner, Ph.D., research team lead for polymer matrix composite materials and processes at the AFRL Materials and Manufacturing Directorate, “Additive manufacturing is important to the future of aerospace for a variety of reasons. Benefits include complexity enabled capability; low-volume, low-cost manufacturing; part reduction; improved form-fit function; tool-less part manufacturing; and lightweighting of interior hardware, such as air ducts, seat framework and wall panels.”

According to Jeffery Baur, Ph.D., leader of the AFRL Composite Performance Research Team, “Printing composites can produce parts with complex shapes and eliminates the need for the expensive pressure cooker and long heating cycles. The possibility to produce parts in the field or at a depot without a long logistics tail is a win-win scenario.”

Air Force lab takes 3D printing to new heights

Recycled Material Extrusion Additive Manufacturing

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Recycled Cellulose Polypropylene Composite Feedstocks for Material Extrusion Additive Manufacturing. According to ACS publications,” Many types of consumer-grade packaging can be used in material extrusion additive manufacturing processes, providing a high-value output for waste plastics. However, many of these plastics have reduced mechanical properties and increased warpage/shrinkage compared to those commonly used in three-dimensional (3D) printing. Recycled polypropylene/waste paper, cardboard, and wood flour composites were made using a solid-state shear pulverization process.”

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Recycled Cellulose Polypropylene Composite Feedstocks for Material Extrusion Additive Manufacturing

Hasbro To Eliminate Plastic Packaging

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According to Hasbro, “one of the world’s largest toy manufacturers, has stepped up its sustainability game and is phasing out all plastics used to package its toys and games by the end of 2022. phasing out plastic from new product packaging, including plastic elements like polybags, elastic bands, shrink wrap, window sheets, and blister packs.3D printed toy designers should ramp up their knowledge about alternative sustainable materials.”

Hasbro Says It’s Game Over For Plastic Packaging

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Hasbro To Eliminate Plastic Packaging

Achieve true 3D printing with non planar slicing

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According to Teaching Tech,” This is the most interesting thing I’ve done with my 3D printer in some time. Instead of printing in a series of 2D planes stacked up to form a 3D shape (2.5D), this non planar technique creates geometry with true 3D tool paths that can eliminate the steps often seen on shallow surfaces. Based on the amazing Masters Thesis of Daniel Ahlers and the University of Hamburg, this development can be tried yourself if you are willing to put in some time to setting it up.”

From comments,
Pinned by Teaching Tech
Teaching Tech
1 day ago
Hi everyone, some updates:
– A bunch of people pointed out that Windows 10 now has an embedded Linux environment. I installed this and went through the process again. I had a couple of errors and had to manually install missing cpan libraries via the command line. Slic3r did successfully compiled, but only runs via command line rather than with a graphical user interface as seen in this video. I’m sure there’s a way to add even more modules to get the GUI working, but it’s beyond my knowledge.
– Some people also mentioned setting up a dual boot configuration. This is another great suggestion but I need to have my Windows PC on at all times to keep my video production going, so not suitable for me.
– There have been some viewers pointing me towards ‘air brush’ nozzles. I’ve ordered a set, they look ideal for this technique.

falchulk
1 day ago
Windows subsystem for Linux 2.0 is much better then 1.0. Should be in the windows 10 1909 release.

grandaspanna
1 day ago
I have this working with WSL under Windows 10 and have used VcXsrv as the Xserver. It also allows pretty easy access between filesystems for loading STLs and writing back the gcode.

Doug Moody
1 day ago
@grandaspanna Yes. Most people with 3D printers know about gcode and STLs. They know how to calibrate their printers and make it print. But the software is somewhat mysterious, as are the effects one little change to a parameter in the slicer.
But what I think would help the most is a simple, already compiled executable program that would run and turn a traditional printer into a “true” 3D printer, using the methods discussed in this video.
I never even thought that my printer was a “2-1/2 D” printer until I watched this video. But now it makes so much more sense to do it this way. In fact, it makes sense to go one step further and make printers with five axes, so that the print nozzle is always perpendicular to the extrusion. When we get to that point, then we can start work on finer nozzles and plastic that extrudes with more granularity.
I do believe that the “big boys” who are printing airplane parts on demand have the right idea but that hasn’t filtered down to the hobbyists like me yet.

Gonun
2 days ago
This is awesome. No idea why I’m watching this as I don’t have a 3D printer, but it’s awesome.

Tina Yoga
2 days ago
I had recently been thinking of this kind of technique. I had thought that this technique would be more easily implemented with a delta based 3D printer. So that the print head could be tilted.

Gerhard Wilkens
1 day ago
you cant tilt the nozzle on a delta. the nozzle will always be parallel to the printbed

Tim Milgart
1 day ago
@Gerhard Wilkens Yes, but it would be logically more easily to do it on a delta based 3d printer. (As I see it, but i’m only a engineer, so everything can be done in my optic).

Filamax
1 day ago
it is very much doable, but is highly dependent on the Delta Design, my current delta prototype will actually do this, once i get the new board in, and some Titan Extruder spares. Cause the hot end hangs below the effector plate, with the magnetic arms on my printer giving a good range of movement the code can be adjusted to tilt the head. But it depends if slic3r can be adjusted to generate G-Code like this

Arek R.
2 days ago
That’s cool, but too much difficult work on software side.
I think it could really take of if CURA would make experimantal mode with it.
Then people would just need to remove the fan shroud, on stock Ender 3 that’s actually easy,

Žan Pekošak
2 days ago
This looks amazing! I will have to try it out very soon. Clean the Z screw and modify the CR10S hotend to have a part cooling fan and a decent head cooling fan…will see what I can do and if I manage it I will share it on Thingiverse.

Xander Vice
2 days ago
I mentioned this on the other video, but the next logical steps for non-planar are hot ends that have steeper angles, taller height to width ratio. Basically, with a steeper angled nozzle, it could fit into tighter curves. This also needs an entirely different cooling system, though, but that shouldn’t be too difficult to develop.
Non-planar also nicely extends into 5axis printing, which should be the next step of developments for the future of FDM.

 

3D printing to build titanium bikes

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3D printing to build titanium bikes. According to The folks at Moots,” have been building gravel-focused bikes since 1981. In 1991, Moots went all-in on titanium frames and never looked back. Since then the methods for the building have evolved. They now include 3D-printed titanium parts, which Moots uses to push its frame design to new limits.”

From comments,
Simon Irvine
3 days ago
James Camden Engineering do the 3D Printing for Moots.

Christopher Wheeler
3 days ago (edited)
I love learning about small companies that are still significantly motivated by pride.

While their products will, by necessity, be more expensive, the experience of designing, constructing and owning something like that will almost certainly be more satisfying and meaningful, even if each of those steps takes longer to achieve.

The days of easy come, easy go, are ruining the planet and have already taken any sort of pride out of the process. I for one, congratulate Moots for doing their own work, and doing it with obvious care.

Hopefully, we can see more videos like this one from real manufacturers and not just business models that outsource. Thanks for the excellent video!

cerebellum
2 days ago
Anodizing explanation was slightly off, it’s not really about the shape of crystals. The different colours in this case are achieved by building up a very thin oxide layer. As light goes through the oxide layer and reflected by the material it gets bent slightly, just like when you look into water. Because the oxide layer is about the same thickness as the wavelengths of visible light, you get interference on certain wavelengths. Depending the thickness of the oxide layer, different wavelengths are affected by that interference so you get different colours.

Naturalhighz
3 days ago
Absolutely brilliant. would love nothing more than a costumized titanium bike! The fact that they’ve kept up with time and put disc brakes, more clearance for wider tyres is just fantastic. Can’t imagine a more enjoyable bike than those.

bdl 2
14 minutes ago
How long until we get a 3D printed Aero titanium Frame, I wonder…

How Moots uses 3D printing to build titanium bikes that last a lifetime

Worldwide 3D Printing Markets, 2019-2023

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Worldwide 3D Printing (Additive Manufacturing) Markets, 2019-2023 – Driven by the Increasing Number of Approved 3D Printed Medical Products by FDA.
According to research and markets,” fastest-growing regional market in North America, due to early-stage adoption of 3D printing technologies and rise in application of 3D printing, specifically in the industrial area. Europe and the Asia Pacific are also contributing considerably to the global 3D printing market, with the increasing adoption and application of 3D printing in various industries, specifically automobiles, and aerospace.”

 

Worldwide 3D Printing (Additive Manufacturing) Markets, 2019-2023 – Driven by the Increasing Number of Approved 3D Printed Medical Products by FDA

Global 3D Printing (Additive Manufacturing) Market: Insights, Trends, and Forecasts (2019-2023)