PLA (Polylactic Acid) filament is the most popular material for 3D printing, and for good reason. This comprehensive guide explains why PLA should be your first choice when starting your 3D printing journey.
What is PLA filament?
PLA is a biodegradable thermoplastic made from renewable resources such as corn starch or sugarcane. Unlike petroleum-based plastics, PLA is environmentally friendly and safe to use in home environments. It melts at lower temperatures than other filaments, making it ideal for beginners.
Advantages of using PLA
PLA offers many benefits that make it perfect for 3D printing at home. It prints at lower temperatures (180–220°C), which reduces energy consumption and wear on your printer. The material produces minimal odour during printing and doesn't require a heated print bed, simplifying the printing process.
Best applications for PLA
PLA is excellent for creating decorative objects, prototypes and toys. Its vibrant colours and smooth surface make it perfect for figures, ornaments and display pieces. However, PLA is not ideal for objects exposed to heat or outdoor elements, as it can deform above 60°C.
Print settings for optimal results
For the best results with PLA, set your nozzle temperature between 190–210°C. Use a print speed of 40–60 mm/s and enable the cooling fans after the first layer. These settings ensure strong layer adhesion while maintaining print quality.
Storage and handling
Store PLA filament in airtight containers with desiccant packs to prevent moisture absorption. Damp filament can cause print issues such as stringing and poor layer adhesion. Properly stored PLA can last for years without degradation.
Environmental benefits
Choosing PLA supports sustainable production. The material is biodegradable under industrial composting conditions and produces fewer harmful emissions during printing compared to petroleum-based alternatives.
