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If you're just getting started with 3D printing, you've probably come across a wide range of filaments. You may also have noted that PLA is one of the most popular 3D filaments in the market. This 3D filament is used by designers in industry as well as hobbyists on their home 3D printers. Below, we discuss why PLA is easily the best filament for 3D printer projects and tips on how to get more out of it.
What is PLA?
PLA or polylactic acid (PLA) is a thermoplastic. It is made from renewable resources such as sugar cane, cornstarch, and even tapioca roots. It does not contain petroleum products and is fully biodegradable. Many people prefer using this material for 3D printing because of its ecological origins. It is also quite popular because it is quite affordable.
Reasons to Choose PLA for 3D Printing.
If you're trying to determine which filament to use for your 3D printing projects, consider the many benefits of using PLA filament below.
- You can print at low temperature
PLA filament melts at a low temperature. You can therefore print at a lower temperature than with other 3D printing filaments. Printing at a lower temperature offers great advantages when it comes to controlling the outcome of the printing process. It reduces the risks of warping. PLA is also less likely to clog the 3D printer's nozzle during printing. When compared to thermoplastics that have higher melting temperatures, you will be better able to achieve sharper features and surface details with PLA.
- It is easy to use
PLA is an especially great 3D printing material to use when you're just getting started with 3D printing. This is because it is one of the easiest to use for 3D printing. PLA adheres easily to a wide variety of surfaces. You can work with this material even without a heated bed and still achieve great results. As it does not contain petroleum products, it does not emit smelly fumes when it is heated.
- The post-processing is easy
When considering the 3D printing process, you should also consider what happens after the print is completed. This is post-processing. It is the stage that results in the finished product. Post-processing with PLA prints is easy. These products can be finished in a wide variety of ways. You can sand them down, polish and paint them. You can also glue, mill, and drill parts to achieve your complete design.
- There is a wide variety of colors and blends available
PLA filaments come in a diverse range of colors. The material can also be blended with various other materials to achieve different properties. It is now common to find PLA blends featuring wood, metal, carbon, and many other materials. This has meant that the applications of PLA have increased.
- It is biodegradable
PLA is a great choice, especially for those concerned about the impact of their prints on the environment. PLA is an eco-friendly material. It is non-toxic and biodegradable. It also requires less energy to print products with PLA. It is the best choice for businesses and individuals that are committed to sustainability.
Limitations of PLA
While PLA offers many benefits, it isn't without its drawbacks. There are many reasons people opt for other materials for 3D printing.
- Low heat resistance
PLA melts at low temperatures compared to other thermoplastics used for 3D printing. Products made from this plastic can therefore deform when exposed to high temperatures. This is something you should consider when choosing materials for products that will be exposed to heat.
- It has a lower tensile strength than other thermoplastics
PLA is a strong material. However, when compared to PETG filament and ABS, its tensile strength is low.
Tips for Printing with PLA
If you have settled on PLA for your next 3D printing project, keep the following tips in mind to ensure great results.
- Keep a close eye on the temperatures
The temperature you use while 3D printing with PLA is vital. It is important to keep the temperature just right. If the printing temperature is too high, the molten PLA will begin to ooze out of the nozzle. This will result in poor prints. The ideal temperature range for printing with PLA is 190 to 210 degrees centigrade. The temperature you choose will depend on the diameter of the filament you're using. Opt for lower temperatures within this range if you're using filaments with a diameter of 1.75mm. If you're using 2.85 mm filaments, go for higher temperatures within this range.
- Pay attention to stringing
Have you noticed the stringing of the extruded filament? You should adjust your temperature. The stringing of PLA filament is a sign that the PLA is melting too quickly because of high temperatures. Try reducing the temperature by 5-degree increments until the nozzle stops leaking material.
- Increase the temperatures if layers fail to adhere
If you notice that layers are not adhering properly, it could be that the temperature you're using is too low. The PLA may be cooling too quickly, and the subsequent layer may not be able to adhere properly as a result. Try increasing the temperature in five-degree increments until the print looks better.
- Keep the filament away from moisture
PLA is hygroscopic. That means that it will absorb moisture from the air around it. When this happens, the filament becomes brittle. It may even form bubbles during printing. This will result in poor-quality prints. For best results with your prints, you should ensure that you store the filament in an airtight container. This will keep it safe from moisture.
Conclusion
PLA is, without a doubt, one of the best filaments available for 3D printing. It is even available as blends with other materials offering even more applications. It is a great filament to use if you're just getting started with 3D printing. Use the tips outlined above to get even better results with your PLA 3D prints and take your creativity to the next level.