9 Common 3D Printing Problems and their Solutions With VIDEO


3D printers can be complex machines. They can be used for creating amazing printed models and prototypes.

It is not uncommon to encounter frustrating moments while using the machine. Sometimes the machine might not print correctly, even though you have set everything correctly.

We have compiled a list with possible solutions to common 3D printing issues that you might encounter when operating your machine.

Let’s get started!

Common 3d Printing Issues and Solutions

1. There are cob-like strands that run across different parts of this model.

Stringing is a common issue in 3D printing. This happens when the printer head leaks some of the filament in spaces where it shouldn’t be printing.  This can cause prints to look horrible.

Temperature can be adjusted to prevent this. This may not stop strings from forming when printing complex models.

The best way to eliminate this problem is to enable your printer’s retraction settings. This setting allows the filament retract to the nozzle prior to the printer head moving. This prevents the filament dripping and reduces stringing.

2. My 3D Model Begin to Bend From The Edges

Warping occurs when the base of the printed model begins to bend from the edges. Warping occurs when the base of your model is not parallel to the platform. Warping can cause distortion of the model at the edges and cracks in the print.

Warping occurs when the print cools quickly. This is when ABS or PLA filament Print begins to contract, slightly distorting it

There are several ways to fix this problem. One solution is to use a preheated printing platform. Getting the temperature of the platform a bit below the material’s melting point. This will allow the first person to print to lay flat on the platform. The slicer software allows you to adjust the temperature of your filament.

If that doesn’t work, you can apply an adhesive to the platform. This will hold the base layer in place and stop it from rising. Also, ensure that the printing platform is level. If the platform isn’t calibrated correctly, it can cause warping. Check Make sure the platform is calibrated.

3. Why is my model cracking?

Airflow is one of the leading causes of cracking in prints. These often appear on the sides and bottom of printed models. The printing will crack if there is too many airflows around the print.

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If possible, cover the entire printer to protect it from the wind.  To prevent air from reaching the printer, cover it with sheets of plastic, paper, and cardboard.

Cracking can also be caused by low filament temperatures. Printing at lower temperatures will result is a weaker layer bond. This can be solved by adjusting the temperature of your extruder.

To get the best interlayer bonds for most filaments, you will need to find a temperature close to the high end of the filaments’ ranges.

4. How to Clear a Blocked Nozzle

If the nozzle does not work when you try to print a 3D-printed model, it could be blocked.  There are many reasons why this happens.

One reason for a clogged printernozzle is hardening of molten resin from previous prints. It can also be caused due to dirt buildup or snapped filament.  It can also happen when filament bits are left behind after spools have been changed.

There are many ways to clear blocked pipes 3d printer nozzles.  The simplest way to get the nozzle untangled is to use a small needle to remove the solidified material. You can also break up the blockage into smaller pieces so it is easier to remove the filament next time.

Cold pulling is another method of unblocking thenozzle. To do this heat the hot end to 250 degrees Celsius. Then, push the filament through heated nozzle until previous material is removed. Let the hot end cool.

You can also remove and clean the gunk with solvents. ABS and PTEG PLA can be chemically dispersed using acetone and ethyl alcohol. You can simply submerge your nozzle in the solvent and the stuck filament will be released.

5. Too Much Filament is Being Extruded

Over extrusion happens when too much material has been extruded. This can lead to inaccurate models and lower quality prints. If your print shows signs like stringing or oozing, it could be that your printer is over extruding.

This problem can be eliminated by decreasing the extrusion multiplier. The flow setting of the 3D slicing program shows the printer’s rate of extrusion. To prevent the printer extruding too many materials, reduce the setting by 2.5% increments

If decreasing the extrusion multiplier doesn’t work, you can try lowering the print temperature. The filament will melt faster if it is heated up. This causes the filament to fly out of the nozzle faster than usual.

Reduce the print temperature by 5 degrees increments until you reach the temperature at which over extrusion is stopped.

6. Layer Shifting Halfway through Print

Layer shifting occurs when the layers of your 3D model are misaligned, giving it a ‘staircase’ look. This makes the entire model unusable. This happens when there is an issue with the extruders/X/Y movement system. It can also happen because of poor maintenance.

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There are many reasons why the printer may suddenly print models that have shifted layers. Printer belts and pulleys may be loose. As with all mechanical parts, a 3D printer’s pulleys or belts can become loose over time. This can cause layers to shift due to slippage.

To fix this problem, inspect your printer’s motion system. Check the tension of the belts. If the belts are loose, make sure you check the printer’s built-in tensioner. If not, you may have to replace them. Make sure that the screws holding the pulleys in place are tight.

Layer shifts can also occur when the printer head collides and the model being printed. Most 3D printers are unable to detect collisions. They will continue printing regardless of whether the path becomes blocked. To solve collision-related issues, simply lower the printer’s travel speed.

You can also enable Z-hop from the slicing program.  The printer head will skip over any parts that have been printed during travel if this setting is activated. This ensures that any printed areas are not reached by the nozzle.

7. Printer stops extruding mid-print

It is not uncommon for a printer to stop extruding halfway through a print.  There are many possible reasons this might happen.

One reason this can happen is when your printer runs low on filament. If you have a large project to complete, it is a good idea check how much filament is left in the spool. Replace it with a new one if it runs out.

It is possible for the extruder’s middle to become clogged. If this happens, make sure to inspect the extruder for signs of obstructions. Also, check for dust in the spool. As dust can build up in thenozzle, it is important to ensure that the filament is free of dust.

There is also a possibility that the extruder motor driver might be overheated.  During the printing process, the mechanism is constantly moving, pushing the plastic back-and-forth. The motion generates heat and if it doesn’t have sufficient cooling, the driver overheats. To fix this problem, turn off the printer.

8. Weak Infill Patterns

Infill This is what gives your model its strength.  It connects the outer shell to the print and keeps the upper surfaces from bursting. Weak infills will result in a weaker final product. This issue can be eliminated by changing a few settings.

A different infill pattern is the best option. You can choose from a variety of patterns using the software. Some patterns have less hollow space between them, making them stronger than others. You can try a solid honeycomb or triangular pattern if haven’t used them already. They will give your model more strength.

Try lowering the speed of the printer. The extruder will struggle to keep up if the speed is too high. There might be under-extrusion in some parts of the infill. This can cause infill to become weak and stringy. Adjust the speed settings to reduce the printing speed.

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If using a different pattern and lowering the speed doesn’t work, then increase the width of the infill extrusion. The 3D printing software This allows you to adjust the extrusion width of the infill. This allows the printer create thicker infills that will strengthen your printed model.

9. Inconsistently in Extrusion

To create accurate models, consistent extrusion is crucial. Inconsistent extrusion can affect the final appearance of the model. If you inspect the printer as it prints, you can see if there is an inconsistency. If the extrusion is not straight, or if it is uneven in size, then this is a sign that something is wrong.

First, check if the filament is stuck to the spool. If it is, then the spool won’t be able to move freely. This will have an impact on how the filament is extruded.  To fix this, you need to make sure that there isn’t much resistance. To allow the mechanism to work smoothly, lubricate it.

A blocked extruder could also cause filament extrusion inconsistencies. Check Check to make sure there are no obstructions or dirt. If you find any, clean it up or contact the manufacturer for assistance.

It is also important to consider the quality of filament used. Low quality filament contains additives that reduce the consistency of extrusions. Some plastics can also degrade over time, which reduces their quality. Try a new spool to test if the problem is resolved.

Conclusion

Sometimes 3D printers can be frustrating. That’s because there are many problems that’ll emerge right when you use the printer.

Common 3D printer problems are usually not difficult to solve. In fact, most issues can be solved almost instantly by altering the settings on your printer’s software.

However, in the case of a mechanical failure, it is best to consult your printer’s manufacturer for assistance.

We hope you find our 3D printing troubleshooting guides helpful and will be able to resolve any issues that you might have when using a 3D printed product. I hope you enjoy it. do very well in your 3D printing business.

Good luck!

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