Injection Molding Machines (IMM)

3D printing: problems and solutions

Of course, all beginners in 3D printing want to avoid potential problems as much as possible. But this is the most difficult stage. The culprits can be incorrect print settings or hardware malfunctions. Lack of practical experience with a 3D printer also plays a role.

In addition, a 3D printer is a rather capricious machine, and you often have to find your own approach to it. As you can see, there are many possible causes of difficulties. And so that the problems that arise during 3D printing do not leave you at a dead end, we have compiled this section. In it, we will try to list the most common problems in 3D printing and effective ways to solve them.

Problems when printing on a 3D printer

Problems when printing on a 3D printer can arise for anyone, no one is immune to this. Therefore, it is important to know about the typical difficulties in 3D printing and be able to solve them. Users can solve almost all problems with 3D printing on their own without any particular difficulty. Only in the case of physical damage is it advisable to contact a special service center without trying to fix the problem yourself. But below we will look at common problems with 3D printing that absolutely any user may encounter.

Problems with 3D printers

FDM 3D printing has certain characteristics. Problems with 3D printers are often caused by these characteristics, and they should be solved with this in mind. Let's not delay any longer and get down to business.

1. Insufficient adhesion (the model does not adhere well to the 3D printer table)

To build a high-quality object, it is extremely important to ensure that the plastic adheres well to the work platform. Otherwise, the sample is unlikely to print properly. Possible causes of insufficient adhesion:

• Large gap between the nozzle and the 3D printer bed;
• The working platform is not calibrated;
• The printing speed of the first layer is too high;
• Incorrect temperature or cooling settings.

How to solve it: If the problem is with the 3D printing settings, change them according to the requirements for the specific plastic. Be sure to calibrate the 3D printer platform according to all the rules. This is a very important step in the printing process. It is also possible to apply special materials to the platform for better adhesion: Kapton, blue tape, or special glue.

2. Under-extrusion or over-extrusion

These terms refer to insufficient or excessive plastic feed, which leads to poor-quality prints. Although these problems are diametrically opposed, they have the same root cause. Reasons:

• Incorrect plastic filament diameter setting;
• Incorrect extrusion ratio;
• Mechanical problems.

How to solve: Set the optimal 3D printing settings or check the plastic feed unit and pressure mechanism.

3. Overheating during 3D printing

During the 3D printing process, plastic is fed at a very high temperature onto an equally hot platform. If the cooling parameters are set incorrectly, the model will overheat, leading to deformation.

The main causes of this problem are high printing speed and insufficient cooling. The solution is to determine the optimal parameters for a specific material. After all, the melting and cooling temperatures differ for different plastics.

4. Thin plastic webs on the model

This is a common phenomenon that is quite difficult to get rid of. Small plastic webs in several places on the object are normal. But if there are too many of them, it is worth digging into the 3D printing settings. Most often, the correct setting of the plastic retraction parameter helps to get rid of such threads. Check the values of the distance and retraction speed. Basically, after a few trials and errors, you will understand how to set this parameter correctly. Also pay attention to the temperature regime. Too high an extruder temperature will cause excessive melting of the plastic and its leakage.

5. Layer offset

This is a fairly serious problem in 3D printing, the occurrence of which should alert the user. Such failures can signal problems with the electronic or mechanical components of the 3D printer. However, you may have set the print head movement value too high. Try lowering this parameter. You should also place the printer on a flat, stable surface and not touch it during operation. Excessive movement can cause the print head to shift.

6. Plastic is not feeding

This happens quite often, and it is no cause for concern. Possible causes:

• Low extruder temperature;
• Print speed too high;
• Clogged nozzle;

First, try pushing the plastic through manually. If that doesn't help, reload the filament. Still no luck? Try changing the 3D printing settings and restarting the model. If that doesn't work either, it's time to clean the nozzle. Special needles of the required diameter are available for this purpose.

7. Cracks and layer splitting

This can happen both during and after printing. Sometimes it is due to poor-quality plastic, but more often the reasons lie elsewhere. Namely:

• Too low printing temperature;
• Too high layer height.

As you may have guessed, correcting these settings will help solve this problem.

Defects in 3D printing

We have listed the main problems in 3D printing. Of course, there are many more possible difficulties, but most of them can be solved by setting the correct values in the slicer. This is something you need to learn. With experience, you will understand how to adjust the required parameters and learn how to eliminate defects in 3D printing. That concludes our article. If you have any additional questions that we have not addressed, please email us and we will add your questions if necessary!

The most interesting facts about 3D printing and 3D printers

3D printing technology is highly versatile and is often used for rather unusual purposes. Of course, this leads to interesting results that attract a lot of attention. But not all events are covered, and some achievements remain behind the scenes. We believe this is wrong, and in this section we want to list some interesting facts about 3D printing that you may not have known. We will tell you about things that go beyond the usual applications of 3D printing but are nevertheless of great practical value.

Interesting facts about 3D printing

First, let's list some interesting facts about 3D printing. Of course, there are many more points that could be included here. It all depends on people's awareness. After all, today everyone knows that 3D bioprinters can be used to create artificial organs and living tissues, as well as a lot of other similar information. Therefore, we have chosen revolutionary techniques that are only gaining popularity and are of particular interest and value in certain circles.

1. 3D printing of all-in-one tablets

In the US, epilepsy tablets printed on a 3D printer are already available in pharmacies. And scientists do not intend to stop at producing just one drug. Currently, new methods of 3D printing medicines are being developed, with researchers paying particular attention to SLA technology. The main advantage of using 3D printing for this purpose is the ability to gradually release active substances. In other words, such a tablet can be programmed to dissolve sequentially over a certain period of time. If you need to take several different medications a day, this could be a real breakthrough in treatment.

2. 3D printing of food

You probably already know about this, but it's worth talking about in more detail. Today, this branch of 3D technology is not very developed, but progress is moving rapidly. There are already several restaurants serving 3D-printed food, and some chefs are using 3D printing to bring their creative ideas to life. In addition, the production of food using a 3D printer is a real prospect for astronauts. After all, with the help of 3D printing, it is possible to enrich food with the maximum amount of nutrients and serve it in the most convenient form.

3. 3D printing of living tissues

Interesting facts about 3D printing are simply inconceivable without this point. 3D bioprinting is a real panacea in the world of medicine. With its help, scientists intend to create full-fledged living tissues suitable for implantation into the human body. Experiments are currently underway to manufacture artificial organs, bones, blood vessels, and even hair using living cells. And such endeavors are extremely successful! Of course, we are still a long way from mass 3D printing of fully functional organs, but we are definitely moving in the right direction.

4. Space

3D printing promises to become the main technology in space. With its help, people will not only conquer the vastness of the universe, but also explore new territories. 3D printing is used to produce parts for rockets, satellites, and other spacecraft, and the ISS even has its own 3D printer that operates in zero gravity. Moreover, 3D printing is seen as a potential technology for creating human settlements on the Moon and Mars. Who knows how far 3D technology will take us.

Interesting facts about 3D printers

The facts about 3D printing don't end there, but we decided to highlight some of them in a separate section. Here we will list some interesting facts about 3D printers that you may not have known.

1. Industrial robotic manipulators

This approach is increasingly being used in manufacturing: industrial robotic manipulators adapted for 3D printing are used as 3D printers. This is interesting primarily because the build area in such cases is practically unlimited by dimensions or the X, Y, and Z axes. Some companies even position this approach as “5D printing,” with the working platform also in motion. Recently, a concept for a six-axis 3D printer was presented, allowing products to be printed without supports.

2. Tattoo machine from a 3D printer

Tattoo artists immediately noticed the possibilities of 3D printing and decided to use it for their own purposes. Today, there are several projects for using 3D printers as tattoo machines, and their results are quite successful. Needless to say, this application is extremely specific and is unlikely to become widespread. But the idea is interesting.

3. Huge 3D printers and printers for smartphones

3D printing technology is characterized by extremes like no other. This is due to the enormous functionality of the technique, which allows it to be used in a wide variety of areas. 3D printers are used to print houses, huge metal structures, and other large-scale constructions. At the same time, developers are also working on the production of smaller parts. For example, the whole world is eagerly awaiting the 3D printer for smartphones, the concept of which took Kickstarter by storm some time ago. Scientists are printing microscopic structures and complete electronics, giving professional manufacturers a run for their money.

4. 3D printer with artificial intelligence

For such an unusual development, the aforementioned robot manipulator was used, for which not only the control code but also the artificial intelligence algorithm was written. As a test, the 3D printer printed an impressive 4-meter structure: a designer pavilion. The developers were satisfied with the result, but emphasized that this was only an experiment and that the methodology needed further optimization.