There are 3D model repositories all over the web, but cookie-cutter models are particularly in high demand. Many options are available on the site. Below, we’ll offer 10 Christmas-themed designs that can be used to make marvelously shaped cookies.

Our Geeetech A-series 3D printers can fulfill all your print demands. Here we recommend you use the food-safe material such as PLA and the filler like food-safe epoxy or Polyurethane to resist the growth of bacteria in prints.

Now, with that out of the way, let’s dive into the fun! 

• Santa Claus

Using about 20 grams of filament, the cookie cutter of Santa’s face with hat and mustache details takes about an hour to print. You can choose 0.3-mm layer height because the details are secondary.

Found on: Thingiverse

• Christmas Tree

This cookie-cutter design is an outline of a basic Christmas tree and can print speedily without any difficulties.

Found on: Thingiverse

• Christmas Ornament

This cookie cutter has star-shaped spaces, which enable you to make 3D-raised stars. What’s more, colorful icing will deepen and give a better sense of what the final stars will look like.

Found on: Cults

• Snowflake Cookies

There are a bunch of snowflake cookie cutters available. You can try a 0.2-mm layer height and a 5% infill to print this snowflake cookie cutter with the Customizer app.

Found on: Thingiverse

• 3D Benchy Cookies

At present, the 3D benchy model is ubiquitous in 3D printing. In addition to testing every aspect of your 3D printer’s ability, it is also a fun model to print.

Found on: Pinshape

• Gingerbread Man

The gingerbread man model achieves some fun details by using 3D indentations. You can draw on the gingerbread with whatever cream you like. when 3D printing this model, using a 0.25-mm layer height and a 30% infill are preferred.

Found on: Thingiverse

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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.

Source:　https://www.simplify3d.com/preventing-blobs-on-3d-print/

TOP1- Edible filament

At the mention of chocolate, a smile naturally appears on people’s faces. So I should tell you that it is possible to 3D print chocolate using FDM technology:chocolate is extruded through the nozzle onto the bed layer by layer. The process is slow and takes a long time, for the printing temperature is relatively low (this is to preserve the flavor of the chocolate).

TOP2-Dust to dust, dust to …a statue?

Everyone wants to be remembered in one way or another after they perish. The Chinese artist ZhuFei fulfills such wish with a unique idea. He uses the ashes as material to 3D print a statue of the deceased. The whole process takes only three hours, after which the family can leave with the statue. The idea is outrageous, but it could help people retain memories of loved ones they lost.

TOP3-Beer is not only drinkable but also used to make long fiber!

An American fibre producer, best known for its biomaterials based on coffee and hemp, recently developed a long fiber made from beer. The long fibers have the natural color of beer, and the main materials are PLA and waste product from beer brewing. The 500g/roll of long fiber that 3D-Fuel sells costs $39.99 (about £32). Now you can make a beer mug out of your favorite beer. It’s amazing!

TOP4- Sand and Sahara

S&S (initials) is a 3D printer type invented by Kay,whose goal is to make 3D printers meet the needs of resource conservation. The printer is based on laser sintering technology, which leverages solar radiation to heat and melt materials made of sand and gravel collected in the desert.

TOP5- Art of granulated sugar

Sugar( in the form of a powder) was first used as material for 3D printing by a US firm. The company wanted to demonstrate its printer’s capabilities by using 3D-printed sugar to decorate the Chateau DE Versailles cake. A few months before, Victor Leugn, an MIT student, teamed up with a Chinese company to create a 3D sugar sculpture. Drawing inspiration from glass production, Victor discovered that the properties of sugar and glass are very similar.

TOP6- Recycle car tires

The United States scraps more than 259 million tires a year, making it a major global polluter. To solve this problem, a California-based company decided to reuse them by turning them into raw materials for 3D printing. Using selective laser sintering(SLS) and the powder from recycled tyres, they have made an object called Rubber Pouff, which they believe could be replicated in other companies.

TOP7- Dough progress

Italian manufacturer B(initials) has presented their first 3D pasta printer. This printer can print pasta in 2 minutes. The machine is aimed at restaurants, and the manufacturer says it’s perfect for restaurants and pasta lovers. The printing materials are water and flour. The 3D printes is based on FDM technology, and the batter is stacked layer by layer on the print bed to form the desired shape. The machine is still in the prototype stage, and is expected to be ready later this year,according to the manufacturer.

TOP8- Glass crystals

An Israeli company (in collaboration with MIT)demonstrated 3D glass printing a few months ago and the technology is ready for commercialization. Glass has excellent biological compatibility, and is easy to sterilize for medicine and aviation applications. To meet transparency requirements, the printer needs to be heated to 1640°C (2984°F). The process is based on FDM technology and the high temperature will have certain limitation to the whole production.

TOP9- Chewing gum

Chia-ling Lin and Maria Nelson set up the first UK company to 3D print chewing gum.The machine is called GumJet, a typical 3-axis FDM printer, but with different materials. So what are the ingredients? As you probably already know from the title, gum balls. During the printing process, various flavorings are added to the gumball to achieve different flavors. According to the designers, the 3D printed gum tastes the same as traditional gum, with a special texture that you will know in your first try.

TOP10-Who says corks can only be used to fill wine bottles?

Corks are usually used as stoppers for wine bottles (about 80% of corks are used as stoppers). A Dutch firm has found another use for it: cork fibre for 3D printing. The material, called CorkFill, can be used in any FDM 3D printer without special technical requirements such as temperature. This fibre is normally printed at 210°-230° C (410° -446° F).

TOP11- Re-creation of bamboo

After fibrils, a Netherland based company is targeting bamboo, a plant normally associated with pandas that flourish in China’s mountain forests. Bamboo is hollow and grows fast. The material, called BabooFill, is a blend of PLA/PHA and bamboo fibers, 100% organic, cohesive and isotropic, and has a nice smell, and the  taste is similar to that of popcorn.

TOP12- Flax and fiber

A French design company, is innovating around flax. They designed flax based 3D-printed fibers that can be used in a variety of contexts, such as architecture, recreation and 3D printing. The fiber, which is based on PLA, is biodegradable and compatible with most FDM 3D printers. It is more durable and flexible than plastic, and each printed layer is thinner than that of plastic, reducing the overall weight of the print.

Disclaimer: this article is based on a Chinese post on xincailiao. The views expressed herein are those of the author alone.Geeetech makes no representations or warranties of any kind, expressed or implied, as to the accuracy, reliability or completeness of the content. The content of this article is for reference only and does not constitute any investment and application suggestions.Geeetech shall not be liable for any loss , damage,claim, injury of any kind resulting from any error(s),omission(s) in this artical post.

Lignin has traditionally been a waste product from paper manufacture. A number of research groups have previously worked on ways to recycle it, for instance using it to produce carbon fiber, stronger concrete and even to reduce the cost of making batteries.

In reality, however, much of it is still burned to produce bioenergy, as part of the papermaking process,

“This is why we’re researching into alternative possibilities for making better use of this raw material in future,” says Marie-Pierre Laborie, a professor at the University of Freiburg,whose team has come up with an innovative way to “reuse” this natural material by transforming it into a biopaste using 3D printing technology. The viscous biopaste is easy to process, solidifies quickly and is suitable for producing complex structures.

In this system, liquid crystals based on cellulose, the main component of plant cell walls, ensure not only the strength but also the good flow properties of the biopaste. The other component, lignin, can ‘stick together’ the microstructure in the process of creating the biosynthetic, as Robert Gleuwitz discovered in his doctoral thesis. Its orientation subsequently determines the characteristics of the biosynthetic: for instance, it can respond more rigidly or more flexibly, depending on the direction from which the force comes.

Further research work are necessary until industrial application is possible. Until now the team has used exceptionally pure lignin which is produced in a pilot biorefinery at the Fraunhofer Center for Chemical-Biotechnological Processes (CBP) in Leuna – whether the waste product from the paper industry can also be directly processed still has to be researched. As Lisa Ebers shows in her doctoral thesis, the characteristics of the biosynthetic varies in many ways, for instance by chemically processing or varying the components: Trials to date have used lignin from beech trees – if it is obtained from other plants it will have slightly different material characteristics such as different liquid crystals, even though they are all based on cellulose. The optimal quantity ratios also differ depending on the planned application. In addition, the researchers will soon be testing an entirely different possible use: the quality of soil can be analyzed with the help of the bio-based material. This takes place by studying the degradability of lignin and cellulose in various types of soil.

The results arose from a research project by the Sustainability Center Freiburg and the Fraunhofer Society. The research and 3D printing trials took place in cooperation with Prof. Dr. Dr. Christian Friedrich and Dr. Gopakumar Sivasankarapillai at the Freiburg Materials Research Center (FMF) of the University of Freiburg and with Dr. Gilberto Siqueira in the Swiss Federal Laboratories for Materials Testing and Research (EMPA) in Dübendorf, Switzerland.

The polymers vary in texture, from ultra-soft to extremely rigid. They can be 3D printed, are recyclable, and stick to each other in air and underwater.

Such materials are expected to be used in fields ranging from prosthetic limbs to flexible aerospace components.

The resin consists of long strings of repeating molecular motifs, while the elastomeric polymers exhibit lightly crosslinked chains providing a rubbery feature to the material. Different amounts of BMI were “inlaid” onto the polymers and connected to two cross-linked molecules of furan and maleimide by a thermal reversible DA reaction. It has been found that changing the number of cross-linked molecules adjusts the stiffness of the material, potentially raising it to 1,000 times the level of a standard photosensitive polymer.

Researchers also noted that the temperatures when the crosslinkers dissociate are nearly same for different stiffness levels. This property is useful for 3D printing.

In the evaluation experiment, the team found that changes at 80ppm and 176ppm indicated that the process slowed down when the crosslinking agent was used up. The tensile strength of 3D-printed DAP is also higher than that of molded samples, at 0.5-0.7mpa, indicating that the material has the ability to fill gaps in traditionally printed parts.

The team further tested its DAP network, matching different cross-linking densities with different mechanical properties to create parts with mechanical mismatch interfaces. A pressure test shows that the component has a higher strength than parts manufactured using conventional FDM polymer materials.

“Right now, we can easily achieve around 80% self-healing at room temperature, but we would like to reach 100%. Also, we want to make our materials responsive to other stimuli other than temperature, like light.” says Frank Gardea, corresponding author on the study and research engineer at the United States Army Research Laboratory

The team concluded that the new materials have the potential to be applied to parts in terms of strength and elasticity, but the amount of BMI needs to be adjusted to create the parts. Their new 3D-printed materials, though still in need of further tweaking, will one day be used to make a range of diverse objects that are 100% self-healing.

Source:　army-technology; i3dpworld