Blog2018-07-10T11:55:40+00:00

3D print tip: What to do with overheating

It is summer and we cannot stop talking about the  temperatures. Sometimes it is too hot, the other time it is too cold. With 3D printing it is actually no different. The correct temperature remains the codeword when making good 3D prints. After all, it remains a plastic process, in which temperature is an essential part. At a higher ambient temperature, a number of things will be important to keep the printing process stable. You can read which parts these are and what you can do about them. The basic principle of 3D printing is that a plastic (filament) is heated to make it liquid, [...]

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Bicycle manufacturer Batavus gratefully uses the dddrop 3D printer

The dddrop 3D printer shortens development time: “On a physical model you can see much faster where the design problems are” Digital design- and visualization software and even VR glasses can not match a physical model for Gerhard Korendijk,  mechanical engineer at Batavus. “Especially if you want to discuss a concept in a broader group.” Since his department has its own 3D printer, he regularly sends a file to the dddrop 3D printer at the end of the working day to have a tangible prototype in his hands the next morning. Accell Nederland is the bicycle manufacturer of Batavus, Sparta, Koga and Loekie. Accell Nederland is [...]

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Benefits of printing with a closed chamber

Purchasing a 3D printer may result in some stress in choice because there is a lot to choose from. An important difference is the construction of the 3D printer. There are 3D printers on the market without a casing/cabinet, these printers are very sensitive to the ambient temperature. There are also 3D printers on the market with a closed casing/cabinet, so the temperature is considerably better to regulate. These closed chamber 3D printers are generally more expensive, but also offer more possibilities with better print performance. Print temperature To be able to make a deliberate choice on which 3D printer the most suitable is for [...]

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Why every engineer needs a 3D printer?

In the initial phase of 3D printing, the market was divided in to 2 markets: the professional printers offer the best features, but where not affordable for many companies. The cheaper printers were unreliable and hobby-like. Alfred Uytdewilligen had the hope that these two extremes would crawl towards each other. A meeting in the middle would have to deliver an affordable, reliable and professional 3D printer. When this had not happened in 2012 he decided to do it himself. Under the traditional dutch name dddrop he developed, in cooperation with customers, the first affordable and professional 3D printer. A survey of trade magazine and news [...]

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3D print tip: How do I make sure that my print does not warp?

Especially with ABS but also with less common materials like nylon, the materials sometimes wants to deform during printing. This warping leads to unsuccessful products and sometimes even to a hard hit: the printhead clashes up against the pulled up material. Naturally you want to avoid that! Why does a product warp? A print can distort because the material shrinks when it cools down. How much a product shrinks depends on the shrinkage strength of the material. Because the printbed is nice and warm, the shrinkage at the bottom will be minimal.  The higher the products, the more shrinkage. This difference creates stresses in the [...]

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3D print tip: What is delamination and how do you prevent it?

We are talking about delamination in 3D printing when there is a shrinkage higher in the product, during printing. When and how fast a product shrinks depends heavily on the type of material you use while printing. PLA and PET-G are not sensitive to this, but when you use more complex, shrink-sensitive materials such as ABS or FLEX, there is a greater risk of shrinkage and warping. For example when the materials cools too much during the printing process. Warping the 3D print Warping can occur at two locations in the model. First of all at the bottom of the product, so directly on the [...]

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Closed versus Open systems

Where the purchase of a professional 3D printer the first years was only reserved for the major players in the market, 3D printing is becoming more and more accessible. Also a professional 3D printer is becoming more affordable, there are machines from €4.000,- that deliver good quality models. Printing a prototype yourself is closer than you might think. Imagine that you don’t have to wait six weeks for a model that you already know is just not good enough.  Instead, in the evening, before you go home, you turn on the 3D printer yourself and the next morning the prototype awaits for you. Which 3D [...]

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Keep your ‘printer head’ cool!

What a spring season! In the Netherlands we’ve already been able to enjoy many sunny days with very high temperatures. Several heat records have been broken, and the summer hasn’t even started yet. For most people, the hot weather is a blessing, but for 3D printing the high temperature can pose an extra challenge. You might have already noticed this in the past weeks. That the right temperature is very important with 3D printing needs no further explanation. The dddrop printers are equipped with a closed chamber, to limit the influence of the environment. But you can imagine that when the temperature rises, it might [...]

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Remote production is very near

There is no doubt that the 3D printer, with its endless possibilities, changes the way we produce more and more. The technology of 3D printing is in full development and partly due to this development, 3D printing is becoming increasingly accessible and the traditional  production lines are becoming more efficient and fair. Remote printing certainly contributes to this. What do we mean with remote printing and what are the advantages? Remote printing The addition of remote printing enables companies to remotely control a 3D printer anywhere in the world. A well-functioning network or WIFI connection gives you the opportunity to turn a 3D printer on [...]

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3D print tip: A sleek 3D product without strings

When your 3D printer’s head needs to reposition from one point in your model to another, the filament might ooze. The result is stringing: small strings of material appear between the printed parts. Stringing especially occurs with models that have big open spaces, but there are ways to avoid it. The right material Whether stringing occurs, varies per material. For instance, ABS hardly causes strings but PET-G does. The material composition also has an effects, so the extend of stringing may differ per supplier. Retraction setting It’s possible to activate the retraction setting in the slicer software. This functionality makes the filament retract into the [...]

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3D print tip: Creating a solid top layer

A 3D print usually consists of a solid exterior, filled with a grid. This saves time and material, with the same model as a result. Of course you want the outside to be smooth and solid, but that can be a challenge for the top layer. How do you ensure a strong and solid cover on your product? Prevent sagging The solid top layer is printed on top of the mentioned grid filling the print. This means that the top layer has to span the holes in the infill. Logically, the material sometimes sags through those holes. To make sure that the material reaches the [...]

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3D printing becomes more accessible

Do you think 3D printing is a (too) big investment for your company? That could well be a misunderstanding. 3D printing becomes more and more accessible, in terms of acquisition costs and the required know-how to operate the printer yourself. Technologies keep on developing and of course the 3D printer is not an exception. The 3D printer too, is developing rapidly. There are several affordable, good quality plug & play 3D printers on the market, accessible for a wide audience. Over 25 years ago we didn’t even know what we could do with a 2D printer, and now we’re already in full development of 3D [...]

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3D print tip: Why don’t my printing layers merge properly?

When not all layers of your 3D print are printed correctly, this is probably due to under extrusion. Under extrusion is a complex problem that can cause missing layers or layers that are not completely printed, leading to holes in the model. Unfortunately, we cannot point out one single culprit. Under extrusion can have various causes, which makes it hard to determine the actual problem. It mostly has to do with using the right extrusion width. Unfeasible extrusion width When we’re talking about extrusion width, we mean the width of the printing layer that the printer extrudes. How wide or narrow this layer can be, [...]

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3D print tip: Creating a strong infill

dddrop 3D printtips: Creating a strong infill. The infill is an important factor in your product’s strength. Therefore, it’s important to prevent the infill from being too thin or stringy with the tips underneath. Various patterns: There are several infill patterns to choose from and they each lead to different tenacities. Examples of robust infill types are grid-shaped, triangular of solid honeycomb. Less strong are the rectilinear and the fast honeycomb infill. These less robust infills could however still be preferable, as these types can be printed faster and are robust enough for most products. Lower printing speed: The infill is usually printed slower than [...]

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dddrop case study: High-precision parts with poly-carbonate

FROM DESIGN TO MANUFACTURING “Ejair offers a broad range of services, from technical design to the production of small series. We also produce scale models and prototypes. These are very useful, because you directly hold a physical product. For the production of prototypes and small series, Erik-Jan uses the dddrop 3D printer. His customers are mainly machine manufacturers: “A lot of machine parts are not exposed to extreme stresses, temperatures or pressure. Because it concerns one-off or small series production, it’s very interesting to print those parts in 3D”. “I already possessed a hobby printer, but I needed a more advanced one for the professional [...]

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dddrop: printing your new house in 3D!

dddrop: printing your new house in 3D! Building your own house is an exciting project: What will it look like? Will it turn out the way you imagined? Sander Teunissen is the middle of such a construction project and dealt with the same questions until dddrop printed a 3D scale model of his house. The design When Sander and his wife bought the lot, they had the wish to design the house themselves, together with the architect. This way, they had the freedom to determine the layout and the angle of the light. Besides that, they decided to add solar panels and a heat pump. [...]

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Nine landmarks 3D printed: De Achterhoek in 3D, a big success!

Exhibition: Achterhoek in 3D! Almost a year ago, an enthusiastic group of volunteers started an ambitious project: printing the Achterhoek in 3D. After a public voting phase, nine landmarks were chosen for production. The 3D print group used SOLIDWORKS to draw the buildings, after which they were printed with a dddrop 3D printer. Meanwhile, the project is finished and the prints of the buildings are shown in the Stadsmuseum in Doetinchem.           The process “We underestimated the drawing work” project employee Eefje Ernst says. “It was quite a lot of work, because the drawings need to be solid to print them [...]

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Carbon fiber parts with dddrop 3D printers

3D Printing strong Carbon-fiber parts with dddrop 3D printers At the dddrop 3D printer laboratory the range of printing materials is expanding continuously. The PETG+Carbon material gives our users new possibilities printing high strength parts for applications that demand more than just plastics. The Carbon fibers are really improving the, already quite tough, PETG material specs to new heights. The material is not only strong but also can endure rough (outside weather) conditions. For example: It can be used to print custom clutch levers for top-level motorsports. Just imagine what you can make, using a dddrop Leader PRO and PETG + Carbon material!

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Printing metal parts with dddrop 3D printers

Printing metal parts with dddrop The dddrop Leader PRO allows you to print full Stainless Steel parts at very competitive prices. dddrop developed parts, like special nozzles, to durable print the metal parts. Parts are 3D printed with a special metal filament: BASF Ultrafuse 316LX. After the 3D printing stage, the de-binding and sintering process is almost equal to the MIM (Metal Injection Moulding) pocess. The end result is a true and high quality Stainless Steel 316L part. Ask us for more information!

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3D print tip: How do I keep my nozzle running smooth?

How do I keep my nozzle running smooth? Sometimes the filament does neatly get transported into your printer, but it doesn’t flow from your nozzle. It piles up in the print head. Why does this happen? And of course: how can you prevent this? Piling up in the nozzle When the nozzle is obstructed, the melted material cannot exit the nozzle. It will then fill up with melted filament. The obstruction can occur due to the burning of dirt or filament, especially with a small nozzle. The burning of dirt can happen in a dirty environment, like a workplace where wood, stone or dust [...]

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3D print tip: How to increase your 3D printing speed

How to increase your 3D printing speed Fast prototyping is possible with a 3D printer. However, sometimes a higher 3D printing speed is preferred. Our helpdesk often receive the question whether it is possible to increase the 3D printing speed. This is possible, but it may affect the quality of the 3D print. In this blog, you will find 5 ways to increase your 3D printing speed, but also the effects that it can have on the final product. 1. Customize default 3D printing speed The most common way is to adjust the print speed in the settings of your slicing software. You can [...]

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What are the advantages of the FDM technology?

What are the advantages of the FDM technology? There are many different 3D printing techniques. The best known techniques are: Selective Laser Sintering (SLS), Stereolithography (SLA), and Fused Deposition Modeling (FDM). The SLS technique functions by repeatedly dosing a layer of powder on a powder bed. The form of the product is created by putting the laser on a selection of the powder bed. SLA functions by curing resin using a UV-laser, creating a product layer after layer. FDM is the most popular contemporary technology to create products. FDM technology The FDM technique is based on extrusion. By means of a print head, a [...]

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ICER: a 2m² 3D printed patron St. George

ICER: a 2m² 3D printed patron St. George 3D printing allows the creation of unique designs. As you may have seen before in the video Eric Huls [DUTCH] of Innovation Center ICER started a remarkable project: printing a two square meter model of patron St. George. After successfully printing a smaller prototype, now the real work begins… Challenges Eric is now building part for part a patron of St. George that is entirely 3D printed. Many aspects come into play: building volume, strength, finishing and weather conditions. All this needs to be taken into account during the building process. Building a 2m² that is fully [...]

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Te Kulve makes beautiful bronzes by use of the dddrop 3D printer!

Te Kulve makes beautiful bronzes by use of the dddrop 3D printer! The craft of bronze casting is more than a thousand years old. Over the years, new techniques have been developed that make the work much easier. But how can you as an artist use modern techniques without losing the authentic craft? Artist Jan te Kulve has an answer to this. Te Kulve makes bronze sculptures and masters the old craftsmanship to perfection. Yet, since a year Te Kulve makes use of the modern 3D printing technology to make his work more efficient. “Thanks to the dddrop 3D printer, I can deliver truly [...]

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3DG-Project enters new markets with the dddrop 3D printer!

3DG-Project enters new markets with the dddrop 3D printer! Anyone who has once bought a house in Belgium, is probably aware of the EPB certificate. This certificate is the same as the Dutch Energy Label and is required when selling a house. The company 3DG-Project BVBA is specialized in issuing these EPB certificates. In the past, they made the EPB with 2D drawings of i.a. the insulation. Since three years 3DG uses 3D mockups instead of drawings. With the purchase of the dddrop 3D printer, 3DG also started making 3D mockups for the sale of newly constructed houses. "Compared with its competitors, dddrop delivers the [...]

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