While 3D printing is a relatively new technology, it has come a long way since its beginnings in the 1980s. With more advanced printers and continuously evolving printing materials, we are witnessing a revolution in manufacturing and prototyping across various industries. As one of the most user-friendly and eco-friendly filaments, PLA is among the most popular types. Today, you can also find PLA+, an enhanced version with improved properties. We’ll explore the advantages of PLA and tips for achieving successful 3D printing results.

What is PLA+ Filament?

PLA+ (Polylactic Acid Plus) is an upgraded version of the traditional PLA filament, a biodegradable thermoplastic derived from renewable resources like cornstarch or sugarcane. PLA is known for being environmentally friendly, easy to print with, and producing high-quality prints with minimal warping. However, PLA+ enhances these properties, offering a more robust and versatile material for various 3D printing projects.

Key Properties 

Increased Strength and Durability

PLA+ is designed to be stronger and more durable than standard PLA. The addition of other materials, such as TPU (Thermoplastic Polyurethane) or ABS (Acrylonitrile Butadiene Styrene), improves the filament’s tensile strength and impact resistance. This makes PLA+ suitable for producing parts that need to withstand mechanical stress or regular wear and tear.

Improved Flexibility

While standard PLA is relatively rigid, PLA+ offers increased flexibility, reducing the likelihood of parts breaking under stress. This property makes it an excellent choice for functional prototypes, mechanical parts, and objects that require slight bending or flexing.

Higher Heat Resistance

One of the drawbacks of standard PLA is its low heat resistance, which limits its use in applications involving higher temperatures. PLA+ addresses this by providing better thermal stability, allowing printed objects to withstand temperatures up to 70-80°C without deforming.

Enhanced Layer Adhesion

PLA+ exhibits superior layer adhesion compared to standard PLA. This results in stronger, more cohesive prints with fewer issues related to layer separation or delamination, particularly in complex or large models.

Applications of PLA+ Filament

With 3D printing finding new applications every day, the enhanced properties of the 3D printing PLA make it suitable for more uses, both in industrial and hobbyist settings.

Prototyping

Due to its balance of strength, flexibility, and ease of use, this filament is ideal for creating functional prototypes. Engineers and designers can quickly produce and test prototypes for mechanical parts, consumer products, or customised components, knowing that the material can handle stress and minor heat exposure.

End-Use Parts

PLA+ is often used for producing end-use parts, particularly in cases where environmental considerations are important. Its durability and biodegradability make it suitable for applications like packaging, household items, and consumer goods.

Educational and Hobbyist Projects

PLA+ is popular among educators and hobbyists for creating models, educational tools, and artistic projects. Its ease of use and quality finish make it a go-to material for beginners and experienced 3D printing enthusiasts alike.

Medical and Dental Models

The precision and quality of PLA+ prints make it suitable for medical and dental models, where accuracy and detail are critical. PLA+ can be used for producing anatomical models, surgical guides, and dental prototypes.

Advantages of PLA+ Filament

Eco-Friendly

Like standard PLA 3D filament, PLA+ is made from renewable resources and is biodegradable, making it an environmentally friendly choice. This is particularly advantageous for industries and individuals looking to reduce their environmental impact.

Ease of Printing

PLA+ is known for being one of the easiest filaments to print with. It has a low tendency to warp, requires no heated bed (although using one can enhance results), and can be printed at relatively low temperatures (around 200-220°C). This makes it accessible to both novice and experienced 3D printers.

High Print Quality

PLA+ produces prints with a smooth surface finish and sharp details, making it ideal for both functional and aesthetic projects. Its enhanced layer adhesion contributes to the overall strength and integrity of the printed object.

Wide Compatibility

The 3D printing PLA is compatible with most FDM (Fused Deposition Modelling) 3D printers, making it a versatile option for users with different printer models and setups.

Variety of Colours and Finishes

One of the coolest advantages of this filament is its availability in a wide range of colours and finishes, including translucent and metallic options, allowing for creative and aesthetically pleasing prints.

Tips for Successful 3D Printing with PLA+

Optimal Temperature Settings

PLA+ generally prints well at a nozzle temperature between 200-220°C. Start at the lower end of the range and adjust based on your specific printer and filament brand. A heated bed set to around 50-60°C can help improve adhesion, especially for larger prints.

Bed Preparation

A clean, well-prepared print bed is crucial for successful PLA+ printing. Use materials like painter’s tape, glue stick, or specialised adhesion sheets to ensure the first layer sticks well to the bed.

Cooling

Proper cooling is important for achieving a high-quality finish with PLA+. Use a cooling fan to help solidify the layers quickly, reducing the chance of stringing or sagging.

Storage

PLA+ is hygroscopic, meaning it absorbs moisture from the air. Store your filament in a cool, dry place, preferably in a sealed container with desiccant packs, to maintain its quality over time.

Calibration

Regularly calibrate your printer to ensure that the bed is level and the nozzle is at the correct height. Proper calibration is key to achieving consistent and high-quality prints with PLA+.

Bottom Line

3D printing with PLA offers a blend of accessibility, environmental consciousness, and versatility. Understanding its properties, advantages, limitations, and best practices for printing can help you harness its full potential and bring your creative ideas to life with precision and ease. Whether you’re prototyping, educating, or creating art, this material provides a reliable and user-friendly medium for your 3D printing endeavours.