geeetech

[geeetech]

Watch These Bionic 3D -Printed Coral Lamps

It’s one thing to create attractive and functional light fixture, and quite another thing to make a stunning light using algorithms that copy coral growth patterns.

Industrial designer John Mauriello,based in San Francisco,broke the conventional thinking and put the effort into his Coral Lamp Lighting Collection with something else entirely.

These lamp prototypes took their inspiration from different types of corals coming with varying aesthetics. Mauriello selected only three prototypes from hundreds of them to produce: the Timor, the Sargasso, and the Celebes.

Before 3D printing these Coral Lamps , Mauriello firstly developed the computational algorithms that mimic coral growth patterns,which show the “growth” of the lamps as they come into being. And, more remarkable,all three lamps were 3D printed in the USA, using processes which recycle waste material in an attempt to reduce waste and curb carbon emissions.

The 3D animation is shown for reference only and not really a frame-by-frame recreation in the process of 3D printing the lamps. Instead, Mauriello wanted to make a video to simulate what corals look like underwater.

The Coral Lamp Lighting Collection is Mauriello’s way of paying tribute to the ocean’s beauty.As an senior surfer,Mauriello’ve experienced the beauty and power of the great ocean,in which coral is one of many magical living structures with all sorts of shape, scale and color.Mauriello’s lighting celebrates this thriving life created by an entire coral ecosystem.

[geeetech]

Why In office 3D Printed Aligners Is More Affordable&Effective For Everyone?

ArchForm, a clear aligner treatment planning software company, announced that it has opened a 3D printing factory for orthodontists aligners on demand On October 15, 2020 and decided to go public in December.

ArchForm produces aligner for half the price of other companies to rival industry leaders like Invisalign, Byte, Candid and SmileDirectClub. According to the company, ArchForm’s aligners are manufactured by robotic precision engineering with a multi-layer plastic material , and will can be delivered to a specific orthodontist within 10 to 14 days.

Invisalign reduces some of the costs of metal braces treatment.However,most of the orthodontists’ profit margins are controlled by parent company Align.They currently pays about $1,700 per patient to Invisalign, and other clear aligner vendors following the same regime. ArchForm is changing this pricing structure.With ArchForm, the cost for orthodontists to print a moderate-to-severe case in-office is reduced to $542, and each patient will be charged only $14.

The production of dental aligners requires the use of professional 3D software to design a stepwise series of 30 to 40 aligner models that can adjust the patient’s teeth based on the scan data.The models are then 3D-printed and the actual aligners are produced by thermoforming biocompatible plastic over the models. With ArchForm’s software,Many orthodontist offices that already have 3D printers can save money and be allowed to plan cases faster with automatic one-click features.

For practices that do not plan to invest in 3D printers, ArchForm’s new plant is ideal for outsourcing the aligner designs.Using a higher-resolution 3D printer, three-layer plastic material, and a robot that is more comfortably precise than manual trimming, ArchForm claims to manufature more accurately shaped aligners with less visible layer lines.

Ideally, using ArchForm can help orthodontists to take digital scans at patient’s first appointment, 3D print the day’s aligners in their office labs, and then outsource the remaining treatment to ArchForm’s aligners. By reducing the waiting time from six weeks to four weeks, orthodontist can offer better service as a result.

[geeetech]

A Self-healing 3D Printed Plastic Webs Could Save Cracked Phone Screen

There are few things more frustrating than getting a little tiny crack or even a big crack in your smartphone screen. That’s really annoying. My friend recently dropped his phone with a screen protector again. He’ve broken that screen about four times over the period of the last 2 or 3 months. Ah, If we could only get a self-healing phone screen!

Thanks to  the efforts of  the Professors Frédérick Gosselin and Daniel Therriault, Now we can do more than just imagine.

These two researchers have much success in producing an ultra-strong polymer fibre and  the inspiration came from the structure of spider silk.They claimed it was made of the unique molecular structure of the proteinacious material,which can absorb up to 96 percent of impact energy before breaking. This helps to creat the unbreakable plastic coverings for various kinds of delicate technology devices.

Image credits: Ashkan Forouzani | Unsplash,Shibo Zou.

Other than this bionic design,the researchers adopted the technology of 3D printing. Heat the polycarbonate first to make it become viscous like honey.Then Professor Gosselin’s team made use of this property to print a series of fibres less than 2mm thick. They repeated the process quickly, “weaving” a new series of fibers in a vertical arrangement to achieve the entire network solidification.

It’s worth noting that as the 3D printer slowly extruded polycarbonate to form a fiber, the molten plastic finally formed a series of hardened loops that give the fiber extra strength as sacrificial links.

The molten plastic is slowly extruded by the 3D printer to form a fibre

Instability-assisted 3D printing of polycarbonate fiber with sacrificial bonds

When the impact happened,  these fibers actively withstood the damage caused by the impact energy, sacrificing the ego in the similar way that spider silk proteins do to protect the integrity of the whole.

Looking forward , the technology is expected to help electronic devices achieve the desired effect of impact protection.We might also be able to make a new type of bullet-proof glass, or a protective coating for aircraft engines.

[geeetech]

Aliexpress 11.11 Big Sale Has Up To 74% Off With Further Reductions For Two Days Only

Double Eleven (11.11) is the biggest sales event in the world of online shopping.Are you ready?Looking to maximise your savings this 11.11 Singles Day? Here’s a list of Geeetech products for 11.11 on Aliexpress with amazing campaigns full of special deals including 74% Off discount, $2.00 coupon with no other required conditions and so forth.You can also save $8 on every $150!This shocking promotion comes only once a year and you simply can’t miss out!

                       Our 11.11 Sale Is Here! Are You Ready For It?

Promotion for 3D printers,up to 35% off with $2.00 coupon,starting from $176. The max discount is as high as $100! Don't miss this sale!

Promotion for important 3D parts and other Geeetech products,up to 75% off with $2.00 coupon,starting from $1.01.

PLA filaments enjoy multiple discounts:

Buy 2 get 10% off;

Buy 3 get 15% off;

Buy 5 get 20% off.

Up to 25% off with $2.00 coupon,starting from $1.99.

Further Reductions:

$60 off over US $499;

$37 off over US $166;

$10 off over US $270;

$8 off over every US $150.

They can be combined with other discounts.

Activity time: US time 11/11/2020-12/11/2020

Shop address:

https://geeetech.aliexpress.com/store/110623/pages/promotion-20201111.html

https://geeetechglobal.aliexpress.com/store/1415075/pages/promotion-20201111.html

Add the shopping cart now！

[geeetech]

The Smallest 3D-Printed Boat You’ve Ever Seen

You must be surprised When you see the iPhone 12 mini for the first time , which is literally tiny by contemporary standards.In the real world, , we may think of a small thing as nothing more than a bean or a grain of sand, or even a strand of hair.But you know what, scientists used a 3D printer to create a 3D Benchy boat, the length of which is 1/3 the thickness of a hair, 6 times larger than a bacterial cell.

Researchers used a scanning electron microscope to photograph the ship for purpose of showing its open cabin, a chimney, and even a small porthole. What’s most impressive is that  the entire model is very tiny, which means it’s even smaller than a statuet created by artist Jonty Hurwitz in 2014 as a potential design for creating a little drug delivery vehicle.

The researchers conducted investigations into small particles called microswimmers that can move through fluids, and be followed by a microscope.They created many structures , including a spiky sphere, a spiral, a trimer,a 3D Benchy boat and so on. Research shows that particles created in a helix shape can go around and be efficient.

“When it moves forward, often it needs to rotate, and that helps, for example, to speed it up.”Daniela Kraft said, a physicist at the Dutch university,adding that the small particle that goes to a particular part of the body to deliver drugs has to propel itself and may have to deal with the complex environment in human’s body.

[geeetech]

Easy Way to Smooth PLA Prints Without Using Sandpaper

3D printing opens up a universe of possibilities in manufacturing. Even at home, you can create unlimited possibilities with a Geeetech FDM 3D printer.However, the final printed model often has a lot of annoying layers that make the whole work look rough.It is only through some post-processing techniques that a smooth appearance can be achieved.The 3D printer filaments comes in ABS and PLA.PLA is more commonly used , which can’t react with the chemical like ABS.You have to keep sanding to get a smooth surface.Obviously this is hard and time – consuming.

Fortunately, we can refer to 3DSage’s unique method of getting a beautiful look without using sandpaper.He printed a model of the skeleton as a demonstration. All you need is a can of spray paint that combines well with plastic (such as Rust-Oleum) and a bottle of Fast Drying Polyurethane – Clear Satin. Let’s get started!

The first step is to check whether there is dirt or dust on the 3D printed model and make sure there is nothing superfluous on the surface.Apply a spray paint of your choice to the model, followed by a quick coat of polyurethane.

Next, to make the coating dry faster and prevent drips, you should carefully place the model under the fan.At this point you can see that the mixture of paint and polyurethane will blend into the layer, making up for any holes or unexpected imperfections and working best with thin layers and patience.3DSage said he waited for a whole day before adding the final coat of spray paint.And the time interval between layers is 20 minutes in order to prevent discoloration and make up for defects.

When it comes to the benefits of his craft, The Maker says it allows him to print faster with a greater layer thickness.This process will mask any rough and unsightly appearance.And you can choose any color of paint.In this way,you get a smooth print model that doesn’t require polishing or other post-processing techniques.

[geeetech]

Halloween Deals Hot Now: Huge Discount on Geeetech Amazon Stores

If you’re the kind of person who waits for special days to get a good deal, now’s the time to start hunting!

Halloween is around the corner.However,you may choose to celebrate safely at home because of the ongoing COVID-19 pandemic.So why not spend your time with your favorite 3D printers?

Look at these great 3D printers and filaments for some holiday fun on the cheap.Now we offered deep discounts on our Amazon products.The Promotion for 3D printers,up to 20% off with extra coupon,starting from 135.20€ .We have multicoloured filaments to choose from in addition to the basic black and white filaments,up to 45%off,starting from 15.69€.Hurry up and buy!

US:

Duration: Oct.22.2020-Nov.1.2020

Check out the link below to take 12% off oders and Save an extra $35.00 now:

https://www.amazon.com/gp/mpc/A2EC73LZDELVIR

The coupon shown on the Amazon product page is available to everyone and can be superimposed upon the discount. You can get around 20% off on the total price on some items.

Five countries in Europe:

Duration:Oct.26.2020-Nov.1.2020

pro B,pro W:5%off

A10,A20:20%off

PLA:15%off（Silk PLA/Grow in dark filament）

ES:

Promotion for 3D printers,up to 20% off,starting from 143.20 €:

Pro B:https://amzn.to/2HdHCTS

A10:https://amzn.to/3jd5e88

A20:https://amzn.to/2IMw0I5

Promotion for filaments,20%off,starting from 18.39 €:

White PLA:https://amzn.to/37AdZHt

Black PLA:https://amzn.to/3m1UxHf

Silk PLA:https://amzn.to/3m46490

Glow In The Dark PLA:https://amzn.to/2T8Wm93

FR:

Promotion for 3D printers,up to 20% off,starting from 135.20€:

Pro B:https://amzn.to/3gNuUI9

A10:https://amzn.to/3gd1J0S

A20:https://amzn.to/30nouK3

Promotion for filaments,up to 23%off,starting from 15.99€:

PLA:https://amzn.to/39HDSUN

Silk PLA:https://amzn.to/2SRRtBb

Glow In The Dark PLA:https://amzn.to/2ZZECRM

UK:

Promotion for 3D printers,up to 20% off with £30 coupon,starting from £115.20:

Pro B:https://amzn.to/3jd4O1y

A10:https://amzn.to/39Qj4JP

A20:https://amzn.to/2wbgmQy

Promotion for filaments,up to 45%off,starting from £14.25:

PLA:https://amzn.to/3d3it9H

PLA:https://amzn.to/3dF9goG

Silk PLA:https://amzn.to/2Uo3xur

Glow In The Dark PLA:https://amzn.to/35iPSKB

IT:

Promotion for 3D printers,up to 20% off,starting from 135.20 €:

Pro B:https://amzn.to/2H9hda2

A10 Pro:https://amzn.to/2m7vPeS 

A20:https://amzn.to/3bK3QaZ

Promotion for filaments,12%off,starting from 21.99 €:

White PLA:https://amzn.to/3hh6Cq4 

Black PLA:https://amzn.to/3j2EasN 

Silk PLA:https://amzn.to/2kNiHeY

Glow In The Dark PLA:https://amzn.to/2lZAU9b

DE:

Promotion for 3D printers,up to 20% off（The promotion is about to begin）:

Pro B:https://amzn.to/3a0nGxR

Pro W:https://amzn.to/3fuvAk8

A10:https://amzn.to/39Agicf

A20:https://amzn.to/3fTyNuz

Promotion for filaments,up to 32%off,starting from €16.99:

White PLA:https://amzn.to/30Hby0j

Black PLA:https://amzn.to/2W3W3LC

Silk PLA:https://amzn.to/2BzinZC

Glow In The Dark PLA:https://amzn.to/3jeJE4z

[geeetech]

Israeli Company Developing World’s First 3D-Printed “Steak”

With the development of technology,3D printing technology gets more sophisticated and artificial meat hits more and more restaurants.So what if you combine these two?An Israeli startup has successfully created an artificial beef”steak”with 3D printing technology.

Redefine Meat’s 3D-printed vegan steak.Photo credit: Reuters

The start up Redefine Meat,founded in 2018,called on people to practice vegetarianism concept by 3D printing the steak instead of slaughtering animals for food.The company claims its steaks look,taste and feel just like real steaks,don’t require any real cattle to be involved in the production process,and are sourced entirely from natural,sustainable ingredients.What’s more,all the cooking methods,whether roast,slow cooking or grilling,can be applied to their artificial meat,which tastes even better than real meat.The good news is that it will be in high-end restaurants in Israel,Germany and Switzerland by the end of this year.

Redefine Meat uses:”proprietary 3D meat modelling,food formulations and food printing technology to deliver a new category of complex-matrix’meat’in a cost effective and scalable way”.The steak itself is made from a mix of soy and pea proteins,coconut fat and sunflower oil,plus natural flavors and colors everyone will love.

The 3D printer mimics animal muscle structure. Photo credit: Reuters

CEO Eshchar Ben-Shitrit specializes in manufacturing industrial-level 3D printers that will eventually be sold to meat distributors worldwide and become part of the meat supply chain.the CEO calls it”the best way to fight climate change,to deliver healthier solutions and food to the entire population of the planet.”It’s been reported that the coronavirus came from a sick bat,but it wouldn’t happen with the 3D printing meat,which is much cleaner.

The market for artificial meat has been very competitive in recent years,but Redefine Meat is focusing on expanding production by combining 3D printing technology with artificial meat production.

Are you bullish on this company?Will you try the 3D-printed vegan steak?Leave a comment below to tell me what you think.

[geeetech]

Will 3D Printers Change The Future of Garage Kits?

In the past few years, 3D printers have become easier to use and can do some really cool things.Like this guy.

3D Printing works of Thanos(Marvel Cinematic Universe) printed by Getech Technology Co.

Anyway, today I started thinking about what this means for the future of garage kits.As garage kits are sold at conventions and produced in limited quantities by individuals or groups, they are clearly hard to come by.

Generally, the official sales price of garage kits is determined according to their production process. The following processes are the factors that lead to its high price:

1. The first thing to do before making a garage kit is to ask the prototype designer to design the prototype.

2, The next step is to make the mold.

3, After completing the steps above,you should color and paint it.

4,It may be colored unevenly or too much on a certain part and need to be fixed.

5. Many garage kits are limited production. A garage kit is generally pre-displayed in the form of GK grey mold at WTF exhibition, and buyers will confirm the reservation according to this preview.

A Garage kit of Son Goku (Dragon Ball)

So as 3D printers become  more mainstream,you may have the opportunity to use a program to create 3D images and make your own garage kits .This is likely to happen with 3D printers becoming cheap.

3D printer can print your favorite garage kits with high precision , without the expensive cost of hiring a prototype designer and making molds.Complex processes such as making eyes and nails can still be be simplified when using the 3D printer.After polishing and coloring, a delicate toy is finished.

The 3D printing garage kit has the advantages of low cost, high efficiency and guaranteed quality.For those who can’t afford expensive garage kits, getting a 3D printer is a great option,with which you can print your favorite animation role and participate in the whole process, which is also a very interesting experience.

[geeetech]

Why My Grandma Loves My Geeetech 3D Printer

I bought a Geeetech 3D printer the other day, downloaded free open-source designs for adaptive aids and printed out some plastic gadgets.I want to give my grandma a little surprise when she comes to visit me.

My grandmother is suffering from arthritis which makes it painful for the joints to move.Owing to this physical ailment,her daily life is very inconvenient.As an example, she found routine tasks like opening jars and even holding a toothbrush to be troublesome and painful.I hope to improve her quality of life through these plastic gadgets.

When grandma first saw these gadgets,she feeled elated andtold me this is one of the best gifts for her.It is known to all that adaptive aids in the shop are vastly more expensive than the standard gadgets and that is why she got so excited.Finally I decided to show her how the gadgets were printed by the Geeetech 3D printer.However,She complained that printer costed too much.So I made a careful calculation with her-a typical adaptive aid costs about $25,and we use a 3D printer to print gadgets for $1 each.We save money by printing more, and there are a lot of possibilities.She wholeheartedly endorse my remarks.

Here are some of the gadgets I gave her:

Easy to hold the toothbrush. J.M. Pearce, CC BY-ND

Easy to remove gas cap. J.M. Pearce, CC BY-ND

Easy to open locks, even with very small keys. J.M. Pearce, CC BY-ND

Easy to Cut the vegetables. J.M. Pearce, CC BY-ND

Easy to use scissors. J.M. Pearce, CC BY-ND

I printed a 3D printed pen holder for her as she used to keep a diary. J.M. Pearce, CC BY-ND

I’m pretty sure there will be more 3D printing applications in the future.Why not get one for a try?

[geeetech]

Unbelievable Germany’s First 3D-printed Luxury Building

For Chinese people used to living in houses made of cement, living in a 3D-printed house must feel quite exciting.In Chinese society, men propose to ladys generally with the prerequisite of having a car and a house.Imagine if, years from now, the house women want most is a 3D-printed one.Well,maybe that’s overstating it a little.But do you know what a 3D-printed house looks like?Germany’s first 3D-printed luxury building has been created, so check it out!

PERI GmbH built Germany’s first 3D-printed residential building in Bekum,Beckum, North Rhine-Westphalia. The house consists of two-storey detached house, each with about 80 square metres of living space, and was built using a 3D building printer.

3D building printing has fundamentally changed the way we build and the process of residential construction.Leonhard Braig，director of production and supply chain at PERI GmbH, said: “Because this is the first building of its kind, the printing speed we proposed was slower than the actual speed.”adding that they hope to take this opportunity to gain more experience in their day-to-day operations, as this will help them make greater use of the technology to make the cost come down in their next project.

The first 3D printed building in Germany was designed by MENSE-KORTE ingenieure + architekten fora design firm named Hous3Druck GmbH.To build it, PERI used 3D printers of type BOD2 for printing., which can be moved from anywhere in the building along its metallic frame and only needs to be calibrated once.

“With conventional construction methods, this would only be possible at great financial cost.” said Waldemar Korte, partner at Mense-Korte. He thought the printing process allows designers more freedom in residential construction.

The building consists of triple-skin cavity walls filled with an insulating compound. During the printing process, the printer takes into account all the pipes and connections to be laid later,such as water pipes,wire way,etc.

BOD2 allows workers to perform work within the print area during printing.This means manual work, such as installing empty pipes and connections, can be easily integrated into the printing process.

[geeetech]

5 Easy Ways to Prevent 3D Print Stringing

without a doubt,you can’t bear some minor flaws in the face of a 3d printing model, let alone “String”.You complained that this printer is such a trash Contrary to expectations.At that time,You may get mad but it will eventually ending up in a mess.

So firstly you need to calm down.Take a close look at what the problem is,make it clear that how it happened and how we can solve the problem.Let’s dive in.

What’s the Problem?

Stringing exists when small strings of plastic are left behind on a 3D printed model. This is usually due to plastic leaking out of the nozzle as the extruder moves to a new position.

Finished print affected by stringing

How to fix this？

In this article, we’re going to look at 5 Solutions that are common to all the major 3D printers.

1.Enable Retraction

Enabling retraction is the most ordinary way used to fight against 3D printer stringing. Enabling retraction means that means that when the extruder has to pass through a gap, the filament is retracted a little bit by the feeder.Once the extruder reaches the next position, the filament is pushed out and the print continues again from the nozzle.If the retraction setting is turned on and you’re still experiencing 3D printer stringing, you may then need to go into the details of the retraction settings:

Retraction distance

The most important retraction setting is the retraction distance. This determines how much plastic is pulled out of the nozzle. Generally speaking, the more plastic that is retracted from the nozzle, the less likely the nozzle is to seep out as it moves. Most direct-drive extruders only require a retraction distance of 0.5-2.0mm. If you run into stringing with your prints, try increasing the retraction distance by 1mm and test again to see if the performance improves.

Retraction speed

The next retraction setting that you should check is the retraction speed. This determines how fast the filament is retracted from the nozzle.If the retraction is too slow,the plastic will slowly leak out of the nozzle and may begin to leak before the extruder moves to its new position. If you retract too quickly, the filament may separate from the hot plastic inside the nozzle, or the rapid movement of the drive gear may even grind away pieces of your filament. There is usually an optimal point of retraction between 1200-6000 mm/min (20-100 mm/s) .

If standard retraction isn’t doing the trick, try reducing the minimum travel. This is usually the quickest solution to fix stringing issues. Drop the value by 0.5mm until the stringing has stopped completely.

2.Set the Right Temperature

The extruder temperature is the next most common cause for stringing.If the temperature is too high, the plastic inside the nozzle will become less sticky and more likely to leak out. Whereas, if the temperature is too low, the plastic will be kind of solid and difficulty in extruding from the nozzle. If you feel you have the right retraction settings, but you’re still having these problems, try decreasing your extruder temperature by 5-10 degrees. This will greatly improve the quality of your printing.

3.Movement Speed

Moreover,increasing the movement speed of your machine can also reduces the time it takes for the extruder to leak as it moves between parts. The X/Y Axis Movement Speed represents the side-to-side travel speed, and is frequently directly related to the amount of time your extruder spends moving over open air.As long as your machine can handle moving at higher speeds, increasing this settings may reduce stringing between parts.

4.Thoroughly Clean the Nozzle Before Printing

When you use a printer for a long time, the filament can leave a thin layer of residue in the nozzle. This thin layer can cause 3D printer stringing as filament strands will try to stick to the surface of your printed part.

To avoid this type of problem, ensure your nozzle is thoroughly cleaned before any printing to remove any dirt from the previous filaments.

5.Keep Your Filaments Moisture-Free

PLA, which absorbs more water than ABS, is the main culprit.The water turns to steam when the plastic is heated up, and it can mix with the plastic to increase the likelihood that it will seep out during non-printing movements.

Therefore, it is very important to store the filament properly, especially if you live in a humid environment.For more guidance, check out the previous blog here：https://www.geeetech.com/blog/2020/09/3d-printer-filament-storage-how-is-it-done-properly/

Source：

https://www.simplify3d.com/support/print-quality-troubleshooting/stringing-or-oozing/

https://all3dp.com/2/3d-print-stringing-easy-ways-to-prevent-it/

https://technologyoutlet.co.uk/blogs/news/the-most-common-3d-printing-problems-with-solutions

[geeetech]

CollPlant and United Therapeutics Expand their Collaboration to Include 3D Bioprinting

When you use a 3D printer to print everyday items, have you ever thought that you could even print an organ of your own body?It’s hard to believe, but it happens.That’s what CollPlant Biotechnologies and United Therapeutics Corporation are looking to do: they have just expanded their collaboration to 3D bioprinting of human kidneys for transplants.

            3D printed lung scaffold ©2020 United Therapeutics Corp

Currently, more than 100,000 people in the United States are waiting for organ transplants.Kidney patients account for most of the demand, with more than 90,000 people seeking donor organs.Statistics show that 17 people die each day while waiting for new organs.At the same time, a new patient is added to the waiting list every ten minutes.So the American company United Therapeutics paid the Israeli company CollPlant 3 million dollars to speed up the production of the famous Bioink, called rhCollagen.This will provide ideal characteristics for bioprinting, including optimal rheology, greater safety, bio-compatibility and adjustable physical properties.It can also be compatible with a variety of  technologies such as extrusion, inkjet or stereolithography.

Bio-printing is a particularly interesting technology for the medical sector, allowing the creation of human tissue and treatments that is suitable for each patient.Every day, methods are evolving and innovations are emerging, which means we’re sure to see functional organs being 3D printed within a few years.The good news for those waiting for transplants is that Bioprinting can design livers, pancreases, spleens and even kidneys.The companies CollPlant Biotechnologies and United Therapeutics Corporation have recognized that this technology could be the future of tailor-made medicine.

In October 2018, the two companies began a collaboration: United Therapeutics received an exclusive license for the CollPlant technology to produce and use bioinks based on human collagen for bioprinted lung transplants.Two years later, the partners began working on a kidney, an organ in need of a donor.CollPlant Bioink is made from human collagen.It requires very strict purification conditions, which makes it extremely long to process, but most importantly it is difficult to produce on a large scale.So the Israeli company relies on a plant platform to produce collagen.They explain: “The production of our recombinant human type I collagen (rhCollagen) starts in genetically modified tobacco plants. The recombinant human protein in the form of ‘procollagen’ is extracted from the leaves of mature plants and processed to produce a highly purified rhCollagen that can be used for the production of medical products.” This innovation will help develop bioprinting and regenerative medicine, provide an opportunity to create quality bioinks for the eventual design of different types of organs.

Thanks to the attention paid by the American United Therapeutics Corporation,the manufacture of kidneys is being addressed in hopes of reducing the number of patients waiting for transplants.

Reference:https://www.3dnatives.com/en/collplant-united-therapeutics-kidney-bioprinting-051020204/#!

[geeetech]

3D Printer Filament Storage – How Is It Done Properly?

If you have moisture and mold in your home, you’re more likely to have respiratory problems, allergies and weak immune system.When you know the cause of the moisture, you can take steps to limit the moisture in the air.

Likewise, humidity is a natural enemy of filaments.Some materials have no humidity problem.Others, such as PVA or nylon, are very hygroscopic and absorb water after a very short time.The wet filament sizzles and is easy to recognize during printing, and the results are terrible.Therefore, it is particularly important to store filaments spools carefully and correctly.

A comparison of dry vs wet filament. Source: Matterhackers

Why Water Damages Thermoplastics

All plastics are polymers or copolymers. you’ll see that the long molecular strands that make up them are woven together when you look at polymers or copolymers under a high-intensity microscope,That means there’s plenty of space between and around the strands.Thererfore, most polymers and copolymers are hygroscopic.Some filament materials, such as Nylon, are very sensitive to water .If  they absorb only a little water, they can cause problems when printing.

How To Keep Your 3D Printer Filament Dry

Storing your filament in an airtight container with a desiccant is the easiest way to settle this issue.Filament dry boxes work well, but they can be bulky.

when it comes to airtight,most people think of plastic containers and bags.For the most part, these are good short-term solutions.

This is the cheapest way to store filament spools. Source: Paige Russell / Instructables

Nevertheless, over time, plastic containers and bags become slightly permeable.This means that the longer your printing materials stay in plastic bags, the more water they absorb, .especially when you live in a humid climate. .If you use a clear bag or box, UV light will also reduce the strength of the filament over time.

Using high-quality Mylar bags or bags made of similar materials is a better solution is to store your thermoplastic.Obviously, there is a layer of metal between two layers of plastic.

Mylar bags protect your printing material from water vapor.Source: rigid.ink

Desiccant packets keep the humidity in the containers to a minimum. Source: Amazon

This metal layer protects your printing material from any water vapor that permeates the plastic.So that your printing material produces a satisfactory result.

How You Know Your Printing Material Has Absorbed Water

Before printing, there are two simple ways to determine if your material is absorbing water.First, you can measure the diameter of the material itself.when a polymer absorbs water, it begins to grow in size.If the diameter of the filament increases by 10 percent or more, it most likely absorbs water.

Another way to determine whether a filament absorbs water is to extrude a small amount of filament before printing.We’ve all probably been there: sitting by a fire, listening to its crackle.This is because the water in the wood is changed into steam when heated.The same phenomenon occurs when you extrude thermoplastic that has absorbed water.The heat from the print end causes the water in the plastic to expand and escape.You can hear hissing or popping and also see bubbles.

How to Dry Out Filament

If your filament is wet, you must dry it out before using it to print.Why not use an oven?

Once the oven it up to temperature, place the spooled material inside.Source: Amazon

In the first place, check out the glass transition temperature for the filament that you are going to dry.You need to be sure that you keep your oven temperature below the transition temperature. In a general way , about 60-70C is just about right for most materials, except may be a bit hot for lower temp materials like PLA. Always keep in mind how hot your oven runs and only use electric ovens.

You should also be aware, even if the Glass Transition temp is very high, for a material like Nylon or Polycarbonate – the spool your filament is wound on is likely made from an ABS which will soften at lower temperatures than the filament.

How to dry PLA filament

You ought to be more careful when you dry PLA filament on account that 70C will be too hot. We recommend at the very lowest temp your oven will go around 40C. Even at this temp your PLA will soften, so drying PLA in the oven won’t always give you the results you’re after. It’s a small reminder as to the importance of keeping excellent PLA storage.

Once the oven it up to temperature, place the spooled material inside and leave it there for four to six hours. If you have a convection oven, this drying time may be shortened since the circulated air removes more moisture from the material more quickly.You can also ‘recharge’ the desiccant this way too, placing it in the oven over a low heat.

Once the time is up, remove the material from the oven, allow it to cool and place it into a water impermeable container or bag along with desiccants. Make sure that the container or bag is completely sealed.

Any material that you have oven-dried is slightly more brittle than normal.Remember,Handle the material with care.Only then can you achieve the superior results with your properly dry print material.

Source:

https://all3dp.com/2/filament-spool-8-ways-to-safely-store-your-filament/

https://rigid.ink/blogs/news/how-to-dry-your-filament?_pos=30&_sid=f8cdf3be6&_ss=r

[geeetech]

Save 50 GBP/EUR at Geeetech A20 3D Printer Savings Event！

When Mary is at a loss for a printer with complicated components, she wants one that is cost-effective and easy-to-assemble, so she can have a much better experience.If you’re faced with a same problem like Mary’s.Don’t worry!Geeetech A20 3D Printer is a perfect solution.

Choosing a 3D printer is not an easy task, especially for beginners. Based on customers’ feedback, Geeetech A20 3D printer with a larger printing platform than A10,is designed to be reliable, user-friendly and affordable. Running stably, it delivers quality prints and provides you with satisfactory printing experience.

Its classic white and black color combo and neat structure impart a touch of simplicity and excellence.Keeping Prusa I3 3D printers’ gantry structure, its modularized design provides you with an easier assembly experience. The electronic parts are integrated into its bottom frame, making A20 steady and enhancing its print results.

Today Geeetech Amazon UK/DE/FR/IT/ES is offering discounts on Geeetech A20 3D Printer. The coupon code is available on a first-come-first-served basis while stocks last.Snap up your dream A20 3D printers now before they are sold out!The details of sales promotion are outlined below.

Details:

UK:50 GBP OFF on 200GBP

DE/FR/IT/ES:50 EUR OFF on 220 EUR

50 GBP/EUR OFF code： GETECHA20

Coupon code valid from Sep.20,2020 until Oct. 30, 2020. By shopping with this promo code, you’ll save 50 GBP/EUR on your entire order. Click on the link and you will be directed to the corresponding sales page.

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[geeetech]

3D Printed Fashion is About to Go Mainstream

3d printing made a big splash when it first came out and it seemed like everybody's desk were adorned with plastic toys.3D printing has rapidly found its way into almost every aspect of our modern world, being used to make parts for cars,planes and clothes.Today’s 3D printing technologies are advanced enough to easily produce shoes,soles and jewelry, but it’s still hard to print a dress or a jacket. In most cases,  3D printing is used for producing non-flexible parts. Despite the challenges of 3D-printed fashion, designers and engineers have overcome many to create some wildest designs.I will tell you how 3d printed fashion is going to be a game-changer.let's start with.

 Example #1:

3D Printed Dress and Jacket

A dress entirely 3D printed at the Met Gala 2019

The dress, named Rose, was certainly the centerpiece of the collection presented at the Met Gala.The garment was worn by model Jourdan Dunn, consists of 21 3D-printed rose petals – each petal measures 53 cm and weighs 0.4 kilos.They were produced on a SLA 3D printer – the process was managed by Protolabs’ 3D printing department.Each petal includes a coat of primer and a coat of chameleon-effect automotive paint.Besides, the dress is modular: petals (up to 37 in all) can be added to increase the length of the dress.

 Ministry of Supply -- Jacket Without Seams

In 2016, Ministry of Supply released a 3D-printed jacket for $250 that quickly sold out.Because the jacket is 3D-printed, it has no seams, which makes it very comfortable to wear.Although it has no seams, the garment still has joints to fit the outline of the body.

The jacket was made on a 3D robotic knitting machine, a process that uses less material than traditional knitting.It’s thought that using traditional methods wastes 15-30% of the material.

 Example #2:

3D printed accessories  

Every day, more and more jewelers are using 3D printing to produce rings, bracelets, necklaces and similar products.

What you see above is a sterling silver bracelet that mimics patterns found in nature.The maker, Nervous System, first 3D printed the model in wax and then cast it in pure silver.

   3D printing enters the watchmaking arena. Source: Sculpteo

Metal 3D printing is a perfect technology for watchmakers, both for prototyping and production of end-use pieces.

The Lo Scienziato timepiece from Panerai uses a fully 3D-printed titanium housing made by direct metal laser sintering (DMLS).If you want to see the Panerai on your wrist, you'll have to pay up to $170,000.

 Katie Holmes wearing the 3D printed neck accessory | Photo credits: Theo Wargo / WireImage

 The actress Katie Holmes wore a 3D-printed collar produced with resin machine on her dress. It represents pearly purple palm leaves and required 56 hours of 3D printing and finishing.

 VIP TIE is an Italian company known for its 3D-printed ties.VIP TIE combines luxury and innovative high-tech design.The whole process of making one tie can involve a complex mix of complementary procedures and materials: craftsmanship, embroidery, 3D printing, exotic leather, mother-of-pearl, carbon fiber, silver, gold and silver plated solid.

 XYZBAG 3D printed bags

 XYZ Bag is an Italian brand behind the Dada collection of customizable 3D printed handbags. Each bag is connected by a leather strap and a 3D-printed outer shell with a fabric lining.For each bag, the customer has to choose between several design options based on 3 different products.Once the model is selected, it is designed in CAD software.

The company uses SLS technology to make components, although they have recently integrated the one developed by HP, Multi Jet Fusion. These bags cost between 290 and 330 euros, which is quite expensive, but also reasonable for 3D printing products.

  Example #3:

3D printed footwear

 Adidas Futurecraft 4D sneakers Source: CNBC

 The big companies in the shoe industry have been developing solutions for mass customization for years.Not only does 3D printing allow these companies to prototype faster, it's also a great solution for mass customization.

Companies in this field, including Adidas and New Balance, have started producing 3D-printed midsoles .Nike, meanwhile, is experimenting with 3D-printed “uppers”.

  Annie Foo’s 3D printed shoes

 Annie Foo is a high-end footwear designer who uses 3D printing technologies in her manufacturing process.She explained that she has always been so obsessed with the combination of existing footwear manufacturing methods with modern technologies and materials to create something new.She uses 3D modeling software to design complex shapes to make her shoes look more aesthetically pleasing.Her final works for the runway were made with HP’s Jet Fusion 4200 machine, using PA12 (nylon).

   Reference：

https://all3dp.com/2/3d-printed-fashion-3d-printed-dress/

https://all3dp.com/2/3d-printed-fashion-the-state-of-the-art-in-2019/

https://www.3dnatives.com/en/met-gala-2019-dresses-100520194/#!

https://www.3dnatives.com/en/3d-printing-fashion-designs150620174/#!

[geeetech]

How to Prevent Blobs?Tips to get your girl back

I dated a girl to count stars over the lake last night.She is so beautiful and a perfectionist to her fingertips.A few months ago,I followed her instagram account and found that she loves Pokemon toys very much.So I decided to make a Charizard with a 3D printer and gave her as a gift.She looked at this cute stuff carefully but soon she gave it back to me.I couldn't think of any reason why she should do that .Did she want to break off our friendship or she like something else?NO way!The design of her mobile phone case is a Pokemon!Oh,Wait!What is this?It is a pesky blob right on the surface of my 3D printed toy.Damn the blob!I left a bad impression on her.

You must be disappointed when seeing blobs marring our 3D prints.,which is commonly called“zits” ,can occur due to the frequent start and stop of extruder as it moves around.These blobs on your model represent the position where the extruder began to print a part of the outer shell and then returned to the same position after printing the perimeter.Without leaving a mark, it's hard to connect two pieces of plastic , but here we figure out two tips to keep the blobs from occuring on the surface of your print.

Tip 1:add a negative extra restart distance

Finding out where they are occurring is vital to reduce blobs.You should make sure if blobs happen at the beginning of the perimeter,or as the perimeter finishes printing.If it is the former, the extruder is most likely priming too much plastic.To solve this problem,you can attempt to adjust your retraction settings,add a negative extra restart distance. For example, if your retraction distance is 2.0mm, the extra restart distance decreases by 0.4mm, and each time the extruder stops, the filament will be retracted 2.0mm .But when it starts again, 1.6mm of the filament will be pushed back into the nozzle.You ought to keep tweaking this number until there are no blobs.

Tip 2:turn the “coasting” setting off

If you find that the blob is happening as the extruder finishes printing a perimeter,it is posssible that the built-up pressure inside the extruder nozzle pushes out more plastic than expected. In this instance, the best solution is to turn off a setting called “coasting” just before the end of the perimeter ,which can relief some of the built-up pressure within the extruder.Try turning this feature on and increasing the value until the blobs stop appearing.

So that's the solution to the blobs. Now I am printing a larger Pokemon toy.I can't go wrong this time, for the sake of my beloved girl.