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!
3DSage shares the Skeleton model that he uses in his own example
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.
Put the coated 3D print under a fan to make it dry faster
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.
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!
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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.
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pro B,pro W:5%off
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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.
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.
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.
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.
Geeetech A10 3D printer
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?
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.
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.
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.
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.
