The best 3D filament for beginners is PLA (polylactic acid), a biodegradable and easy-to-use material that works well with most 3D printers. PLA is the most popular filament type among hobbyists and enthusiasts, as it offers a good balance of quality, durability, and affordability. In this article, we will explain why PLA is the best choice for beginners, what are its advantages and disadvantages, and how to use it properly.
PLA is a thermoplastic polymer made from renewable resources such as corn starch, sugarcane, or cassava. It is one of the most environmentally friendly filaments, as it can be composted or recycled. PLA is also widely available in various colors, finishes, and blends, giving you more options to customize your prints.
PLA is ideal for beginners because it is easy to print with. It has a low melting point, which means it does not require a heated bed or a high-temperature nozzle. It also has good adhesion, which reduces the chances of warping or curling. PLA prints are smooth, glossy, and accurate, making them suitable for a range of applications, from toys and models to art and jewelry.
What are the drawbacks of PLA?
PLA is not perfect, however. It has some limitations that you should be aware of before using it. PLA is not very flexible or strong, which means it can break or crack under stress or impact. It is also sensitive to heat and moisture, which can degrade its quality and performance over time. PLA is not recommended for outdoor use or for parts that need to withstand high temperatures or mechanical forces.
Another drawback of PLA is that it can produce unpleasant odors or fumes when heated. Although PLA is generally considered safe and non-toxic, some studies have suggested that it may release harmful substances such as ultrafine particles or volatile organic compounds (VOCs) during printing. These substances can cause irritation, allergies, or respiratory problems if inhaled or exposed to for long periods. Therefore, it is advisable to print PLA in a well-ventilated area or use a filter or an enclosure to reduce the emissions.
How to use PLA?
To get the best results from PLA, you need to follow some basic guidelines and tips. Here are some of them:
Choose a high-quality PLA filament from a reputable brand or supplier. Cheap or low-quality filaments may have inconsistent diameter, color, or composition, which can affect the print quality and reliability.
Store your PLA filament in a cool, dry, and dark place. Use a sealed container or a ziplock bag with a desiccant to prevent moisture absorption, which can cause bubbles, cracks, or jams in the filament.
Use the recommended settings for your 3D printer and filament. Check the manufacturer’s instructions or the filament label for the optimal temperature, speed, and flow rate. You can also experiment with different settings to find the best ones for your specific model and design.
Use a cooling fan to improve the print quality and prevent overheating. PLA tends to cool down quickly, which can cause layer separation or stringing. A cooling fan can help to solidify the filament faster and create a smoother and more detailed surface.
Use a raft or a brim to improve the adhesion and stability of the print. A raft is a thin layer of filament that covers the entire print area, while a brim is a narrow strip of filament that surrounds the base of the print. Both of them can help to prevent warping or lifting of the print, especially for large or complex models.
Use a sharp blade or a sandpaper to remove any excess material or imperfections from the print. You can also use a heat gun or a hair dryer to smooth out the surface or fix any cracks or gaps. Be careful not to overheat or damage the print, as PLA can deform or melt easily.
PLA is the best 3D filament for beginners because it is easy to use, affordable, and versatile. It can produce high-quality prints with minimal effort and hassle. However, PLA also has some drawbacks, such as low strength, poor heat resistance, and potential health risks. Therefore, you should use PLA with caution and care, and follow the best practices and tips to ensure a safe and satisfying 3D printing experience.
