Lightweight PLA is the first filament of its kind: a 3D printing filament using active foaming technology to achieve lightweight, low-density printed parts. At around 230°C (446°F) LW-PLA starts foaming and it increases its volume by nearly 3 times. 

By decreasing the material flow by 60% you can achieve lightweight parts. 

You can also use the expanding properties to reduce print time by printing big layer heights or extra thick materials. Fine tuning and optimization is required to make the most of your LW-PLA use.

Assuming nozzle size and layer height are fixed, our main input variables are temperature, speed and flow to determine the amount of expansion.

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