3D printing remote production

3D printing remote production

A new way of producing

There is no doubt that the 3D printer, with its endless possibilities, is increasingly changing the way we produce. The technology of 3D printing is in full development and partly because of this development, 3D printing is becoming more accessible and traditional production lines are becoming more efficient and fair. Remote printing certainly contributes to this. What do we mean by remote printing and what are the advantages?

Remote 3D printing

The addition of remote printing allows companies to remotely control a 3D printer from anywhere in the world. A good working network or WIFI connection gives you the ability to turn on a 3D printer in China while you are in the Netherlands or anywhere in the world. This addition brings a number of important benefits.Printing without sharing files

  • Less transportation costs
  • Environmentally friendly
  • Time savings

Printing without sharing files

The fact that an engineer does not want to share his self-developed 3D models is not strange. The monitoring of the files and the knowledge of the engineers is very important in the product development process. Especially in the prototyping process, the files are essential to come up with a new product and this data should not fall into the hands of others. When you print remotely, you can log on to a 3D printer and order your print from anywhere in the world without sharing the data with others.

Less transport costs

Remote printing significantly reduces the need to transport goods. After all, there is no need to send physical goods around the world. All you need to send is the print order via an internet connection. The final, physical, product is then printed on site. Especially when products are produced on the other side of the world, remote printing can be a great advantage in terms of transportation costs.

Environmentally friendly

By removing transportation from the production process, a lot of fuel is saved. In the traditional production process, a product is often transported several times. After development, the product is often made by a manufacturing company in another country, then in some cases it is transported to a local packaging company and then it goes to the stores or to the manufacturer. Since the product is transported several times, many exhaust gases are emitted. Using remote printing, it is possible to produce the entire product locally, including the packaging.

Time savings

In addition to the savings in transportation costs and the environmental benefits, there is also a benefit in time savings. Global shipping takes a lot of time, even though we are spoiled with global delivery times of three days. Remote printing is much faster. The print order is given, the printer goes to work on site and a few hours later you actually have your product in your hands.

The dddrop RAPID ONE has a SMART-module which enables printing through WiFi, a Lan or a network connection. Through the useful app -that can be installed on your smartphone- and the camera in the printer, you can monitor and operate the printer at all times.

How to prevent stringing while 3D printing

How to prevent stringing while 3D printing

What causes stringing in 3d printing?

When the head of your 3D printer has to move from one point in your model to another, the filament can flow out. The result is stringing: small strands of material appear between the printed parts. Stringing is especially common in models that have large open areas, but there are ways to prevent it.

The right material

Whether stringing occurs varies by material. ABS, for example, hardly causes string formation, but PET-G does. Material composition also has an impact, so the degree of strings can vary by brand of filament.

Retraction setting

It is possible to activate the retraction setting in the slicer software. This functionality ensures that the filament is retracted into the nozzle before the print head moves to another part of the product. The retraction speed is also important, if it is set too low, strands may still appear.

Wipe nozzle setting

This option can be combined with the retraction setting. With sweep nozzle, the printer will sweep the last bit of liquid material on the model before retracting the filament and moving the print head to the next location. In this way, wires are minimized even further.

Temperature

If the filament is still oozing after retraction, the print temperature may have been set too high. The material then becomes very fluid, making retraction more difficult to perform. Check the settings with your filament supplier and adjust the temperature if necessary.

Movement speed

The greater the distance between two points in the model, the harder it is to keep the filament in the nozzle. Therefore, for a model with large gaps, we recommend slightly increasing the movement speed. The movement speed is not the same as the print speed, because it is the movement between print points. Note that the speed should not be set too high either, as this could cause the pinhead to overshoot, causing shifts in the model. So find the right balance.

Is the product still not perfect? Your last option is the finishing: you can clear the model of the last strings with a heat burner or a hairdryer.

Creating a solid top layer for your 3D print

Creating a solid top layer for your 3D print

A 3D print usually consists of a solid exterior filled with a grid. This saves time and material, resulting in the same model. Of course, you want the exterior to be smooth and solid, but that can be a challenge for the top layer. How do you ensure a strong and sturdy covering for your product?

Prevent sagging

The solid top layer is printed on top of the aforementioned grid that fills the print. This means that the top layer must span the gaps in the filling. Logically, the material sometimes sags through those holes. To ensure that the material reaches the other side properly, you can do the following:

Increase infill percentage

The infill is the foundation of your top layer. You can imagine it’s hard to create a proper top layer when the foundation exists mostly out of air. Try to increase the infill percentage to create a better bearing capacity for the top layer. Try to find the optimal ratio, so you don’t lose unnecessary material and time.

More layers

In addition to the filling, the number of compression layers can also be the reason why the top layer is not firm. The top layer consists of several solid layers that are bonded together. To get a smooth top layer, it must be thick enough. As a rule of thumb you can use a height of 0.75mm for the entire surface layer. Depending on the pressure height, you will therefore have to use several layers to achieve a top of 0.75mm. With the standard layer height of 0.25mm you would need at least 3 layers for a solid top.

Why 3D printing becomes more accessible

Why 3D printing becomes more accessible

Starting with 3D printing

Do you think 3D printing is a (too) big investment for your business? That might be a misconception. 3D printing is becoming more accessible, both in terms of purchase cost and the knowledge required to operate the printer itself. Technologies continue to evolve, and the 3D printer is obviously no exception. The 3D printer is also developing rapidly. There are several affordable, quality plug & play 3D printers on the market, accessible to a wide audience. 

 

 

 

 

 

Over 25 years ago, we didn’t even know what we could do with a 2D printer, and now we are already in the midst of 3D printer development. The companies or households that do not own a 2D printer, for printing text and images, are probably only a handful. Will the same be true for the 3D printer in 20 years? That’s hard to say, but the fact is that professional 3D printing will no longer be just for large companies by then.

3D printing techniques

When we talk about 3D printing, we distinguish three main techniques and therefore printer types. In all these techniques, the product is built up from individual layers. The computer ‘reads’ these layers from digital slices of the 3D CAD design. For making functional parts, SLS and FDM are the preferred methods. In addition, SLA printers are available to make products with a very smooth surface, high precision and functional mechanical properties. FDM is the most popular and accessible technique for making products.

The current 3D printer market

We can divide the current 3D printer market into three segments: the high, mid and low segments (the last being the hobby printer). The hobby printers are available in various webshops, with prices ranging from €250 to €3000. These printers generally do not have a closed housing and are therefore very sensitive to the environment. Nice for home use, but when the product is intended for prototyping or small series, it is advisable to switch to a printer from the middle or high segment.

The mid-range printers are priced between €4000 and €20,000. These printers are well-developed machines with many features, yet are easy to use. The included software automatically converts your 3D models to printable files. Especially the printers with a closed housing and an open filament system can be used for numerous applications. Finally, there are the high-end printers. This includes the printers with prices above €20,000, which is a large investment. It is therefore important to determine what the printer can do for your business and how much it will actually be used.

Is 3D printing worth the investment?

You may fantasize about owning a 3D printer, but the question remains whether it is worth the investment. A 3D printer is especially beneficial in three parts of the development and production process; in prototyping, in producing small batches, and in creating “new” shapes that are not feasible with traditional techniques.

3D print prototyping

More and more companies discover 3D printing as a useful tool for making prototypes. The biggest gain is time. You no longer lose weeks on making scale models or waiting for an externally produced product. With your own 3D printer you can start the print when you leave in the evening and the next day your scale model or product is finished.

Producing small series with a 3D printer

The current, traditional, production methods are mill-turn and injection molding techniques. For small batches, these techniques are very expensive. When you for instance only need 50 pieces of a certain part, it is much cheaper to print these yourself. Moreover, you have very little risk of stocks. You just turn on your printer and there the parts are.

Printing ‘new’ shapes

Traditional manufacturing techniques are limited in making certain shapes. Hollow products, for example, are fine to produce with a 3D printer. This means that your designers have fewer limitations in the development and production process.

Curious what a 3D printer can do for your company, without a too big investment? Have a look at our dddrop RAPID ONE or contact us for an informal consultation: info@dddrop.com.

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

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

What does under extrusion mean for 3D printing?

If all the layers of your 3D print are not printed correctly, it is likely due to under extrusion. Under extrusion is a complex problem that can lead to missing layers or layers that are not fully printed, leading to gaps in the model. Unfortunately, we cannot pinpoint a single culprit. Under-extrusion can have several causes, which makes it difficult to determine the actual problem. It usually has to do with using the correct extrusion width.

Unfeasible extrusion width

When we talk about extrusion width, we mean the width of the printing layer that the printer extrudes. How wide or narrow this layer can be depends on the nozzle size used. The printer software has default values for how wide a layer can be for a given nozzle size (100% is the minimum extrusion width for each nozzle and 120% is the maximum). If you enter a layer value that is too thin or if you use the wrong nozzle, the layer cannot be converted to a printing layer and therefore will not print. This results in missing layers in your model. Check which extrusion width is to be used and that you are using the correct nozzle for this width. If you cannot obtain the desired width with any nozzle, the model will need to be adjusted in the CAD software. You can also manually adjust the extrusion values in the printer software, but the options are limited because it must be technically feasible.

Clogged nozzle

When under extrusion occurs, you would expect the solution to lie in pushing more filament through the nozzle and thus adjusting the pressure. This is possible, but only to a certain extend and with the right temperature. When the pressure is too high, the chance of a clogged nozzle is very big. Which in turn causes under extrusion to occur again, because the filament isn’t printed correctly anymore.

Under extrusion is an adhesion issue, that could be caused by an unfeasible extrusion width. The dddrop printers have changeable nozzles, which allows for a big range of extrusion widths that can be printed. Furthermore, dddrop delivers the right basic settings for each material which helps to achieve the best result possible.

Creating a strong infill for your 3D print

Creating a strong infill for your 3D print

Filling is an important factor

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.

Different patterns

There are several different infill patterns to choose from, and each leads to different degrees of strength. Examples of robust infills are lattice, triangular or solid honeycomb. Less robust are rectilinear and fast honeycomb infills. However, these less robust fills may still be preferred, as these types can be printed faster and are robust enough for most products.

Slower printing speed

The infill is usually printed more slowly than other parts of the product. If the print speed is set too high, the nozzle cannot extrude enough material. Result: a thin and stringy infill that does not provide the proper strength. Therefore, try to lower the ‘Solid Infill Underspeed’ slightly so that the printer has enough time for a strong infill.

High infill extrusion

For all products, the thicker the infill, the stronger the product. You can make the infill thicker by increasing the width of the grid. Set the Infill Extrusion Width to 110% to extrude more material and get a firmer grid. However, making the infill thicker means that more material is required and the printing process is slowed down. Therefore, you can simultaneously loosen the infill by placing the grids further apart. To do this, adjust the infill percentage in the slicing software.
3d printing speed

Conclusion

You want to print fast and not waste too much material, but you also want to give your product the right strength. It’s therefore important to find the right balance! Experiment with different infill patterns, the printing speed and the infill extrusion to achieve the result that meets your product requirements.
3D scale model of your new house

3D scale model of your new house

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 was in 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. “You have no clue what you get yourself into,” Sander says. “ It takes a while before you can visualize the house, which makes it very exciting when the walls are finally being built.” To give Sander more insight into his future home, dddrop printed a 3D scale model based on the construction drawings. “It is a perfect replica and everything is in there, even the solar panels and roof tiles. The greatest thing is that you can disassemble every floor. This enables you to look inside the house and see the layout, even some furniture is there. It all comes to life with the scale model, we even made some small adjustments based on it,” Sander says delighted.

Eye catcher

Sander was not the only one who responded positively to the model. It also attracted the attention of others: “We’ve already had a few birthday parties and everyone responded absolutely thrilled. We also showed the model to our architect and contractor, they loved it as well of course!” Sander and his wife have two children and especially the eldest responded enthusiastic. Sander says: “The eldest is 5 and finds it very exciting that we are going to move. With the model, she has the ability to explain the layout and tell which room is going to be hers. The scale model is a success for the entire family and we gave it a prominent place in the house.”

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

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 properly. Because of this, the work got a bit delayed.” Luckily, the printing went successfully: “the process went through different phases. For example with the stone quarry of Winterswijk, we had difficulty creating real depth. We experimented until we had a beautiful stone quarry. About which print is Eefje the most satisfied? “I think about Ruimzicht, but that is purely because it contains a second layer. The balcony of Ruimzicht is placed separately, which creates more depth,” she says. It is great that you can print separate parts and later secure them on to each other. That makes it even more realistic.

The exhibition

In the meantime, the buildings are finished and shown in the Stadsmuseum. The prints are placed on a big map of the region and photos of the original building are displayed. Besides that, a dddrop 3D printer is printing miniatures on site. There are also videos to be seen that explain the process. This makes the exhibition fun for everyone, young and old. Eefje: “The feedback is very positive. Visitors are enthusiastic about the set-up which gives the exposition
a body. The funny thing is that people picked up the buildings during the opening. I found that fascinating, because it is a museum after all. People just like to feel the buildings and see them from up close.

What’s next?

The exhibition is the last phase of the project: exhibiting the prints. Later on, the prints will be shown in the city centre, so that everyone can see them in a low threshold manner. “It is not clear how we will set this up yet,” Eefje explains. “But this is not the end of the project, the buildings will be shown outside.” Further on, the 3D print group will remain active. Every Tuesday evening, this group comes together and everyone is welcome to join. Eefje: “There is a possibility that other prints will be made for this project. Besides that, there is now time to print and experiment with other things again. Which the members of the group are very excited about!”

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

Is it possible to print with metal?

Printing metal parts

At dddrop we continue to develop. So we are also exploring the possibilities for metal printing. The dddrop EVO Twin 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.

Are you interested in metal printing? Please let us know, we would like to explain all possibilities:

Contact us

How do I keep my nozzle running smooth?

How do I keep my nozzle running smooth?

3D printing is a remarkable technology that brings ideas to life, layer by layer, creating objects right before our eyes. However, like any technology, it comes with its challenges. One such challenge that many enthusiasts and professionals encounter is 3D printing clogging. This issue can halt production, leading to wasted time, resources, and, of course, the frustration of having to troubleshoot and fix the problem. In this guide, we delve into the common causes of 3D printing clogging, how to prevent it, and what to do if your printer nozzle becomes clogged. Join us on this journey to ensure a smoother 3D printing experience.

Common Causes of Clogging

Understanding what leads to 3D printing clogging is the first step towards finding a lasting solution. Here are some prevalent causes:

  • Filament Quality: Low-quality or contaminated filament can introduce foreign particles into the nozzle, causing clogs.
  • Nozzle Alignment: Misaligned nozzles can scrape against the print, accumulating material that eventually leads to clogging.
  • Temperature Settings: Inadequate temperature settings can either cause the filament to burn and stick to the nozzle or not melt sufficiently to flow smoothly.

In the next section, we will explore preventive measures to keep your 3D printing operations running clog-free.

Preventing Clogs

Prevention is better than cure, especially in the realm of 3D printing. Here are some proactive steps to combat 3D printing clogging:

  • Regular Maintenance: Regular cleaning and inspection of your nozzle will help catch potential issues before they escalate.
  • Choose the Right Filament: Opt for high-quality, contaminant-free filaments that are suited for your printer’s specifications.
  • Proper Settings: Ensure your printer’s temperature and speed settings are optimized for the material you are using to prevent overheating or underheating, which could lead to clogs.

Unclogging Your 3D Printer

At some point, you might encounter 3D printing clogging despite your preventive measures. When this occurs, it’s crucial to address the clog efficiently to resume your printing projects. Here’s a step-by-step guide to unclogging your 3D printer: 

  1. Identify the Clog: Determine the extent and location of the clog.
  2. Heat the Nozzle: Warm up the nozzle to loosen the clogged material.
  3. Manual Cleaning: Use a cleaning filament or a fine needle to remove the clog gently.
  4. Cold Pull Technique: Employ the cold pull technique to eliminate any residue.
  5. Check and Realign: After unclogging, check the alignment and ensure that the filament path is clear before resuming printing.

By following these steps, you can resolve 3D printing clogging and get back to bringing your creations to life.

Understanding the Cold Pull Technique

The Cold Pull Technique is a proven method to clear away residue from your nozzle’s interior. Initially, heat the nozzle to a temperature suitable for your filament type, then cool it down slightly below its normal printing temperature. Insert the filament and allow it to cool further. Once cooled, pull the filament out with a swift, steady motion. The idea is that the filament adheres to any residue within the nozzle, and pulls it out when removed. This technique is highly effective in preventing and resolving 3D printing clogging, ensuring a clean nozzle for a smooth printing experience.

The Right Tools for the Job

Having the right tools at your disposal can significantly ease the process of maintaining a clog-free 3D printer. Here are some recommended tools and accessories:

  • Cleaning Filaments: Special filaments designed to clean the nozzle from the inside.
  • Nozzle Needles: Fine needles can help dislodge clogs from the nozzle.
  • Nozzle Brushes: These can be used to clean the exterior of the nozzle.
  • Quality Filament: Invest in high-quality filament to reduce the chances of 3D printing clogging.
  • Temperature Gun: A handy tool to ensure your printer reaches the correct temperature.

Equipped with these tools, you’ll be better prepared to prevent and address clogging issues, promoting a seamless 3D printing experience.

Material-Specific Guidelines

Different materials have distinct characteristics that can affect how they flow through the nozzle, potentially leading to 3D printing clogging. Here are some guidelines:

  • PLA: Ensure proper cooling as PLA can become sticky when overheated.
  • ABS: Maintain a consistent high temperature to prevent the material from hardening and clogging the nozzle.
  • PETG: Clean the nozzle regularly as PETG can leave residues that harden over time.
  • TPU: Print at a slower speed to prevent this flexible material from jamming.

Adhering to material-specific guidelines can significantly reduce the likelihood of encountering clogs while working with various filaments.

Conclusion

Navigating through the realm of 3D printing comes with its fair share of challenges, with clogging being a notable one. However, with a keen understanding of common clogging causes, preventive measures, and effective unclogging techniques, you can significantly minimize downtime caused by 3D printing clogging. Equipped with the right tools and knowledge, you’re now ready to tackle any clogging issues head-on and enjoy a smoother, more productive 3D printing experience. Remember, regular maintenance and adherence to material-specific guidelines are your allies in maintaining a clog-free printing journey.

FAQ

Why does my 3D print keep clogging?
Your 3D print may keep clogging due to impurities in the filament, misalignment of the nozzle, or inadequate cleaning practices. These factors may obstruct the filament’s smooth passage, leading to consistent clogs.

What to do if your 3D printer is clogged?
If your 3D printer is clogged, disassemble and clean the nozzle thoroughly using a cleaning filament or solvent. You can also heat the nozzle to remove any residual filament.

How do I stop my nozzle from clogging?
To prevent your nozzle from clogging, ensure you use high-quality, clean filament and maintain proper alignment of the printer parts. Regular cleaning and periodic maintenance checks can also help in preventing clogs.

Why does my extruder keep clogging mid print?
Your extruder may clog mid-print due to temperature fluctuations, incorrect printer settings, or the use of incompatible filament material. It’s essential to monitor the printing process and adjust settings accordingly.

How often should you clean 3D printer nozzle?
It’s advisable to clean your 3D printer nozzle after every 10 hours of printing. However, the frequency may increase if you use materials prone to causing clogs or if you observe a decline in print quality.

Why is my 3D printer nozzle jamming?
Your 3D printer nozzle may jam due to incorrect temperature settings, a worn-out nozzle, or the use of improper filament material. Replacing or upgrading the nozzle and using the recommended filament and settings can alleviate jamming issues.