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ColorFabb released 2 new light weight materials based on TPU and PLA. These materials use a blowing agent to create microscopic bubbles in the material during printing and therefore can lower the density by almost 60%. I tested the printability and strength of the LW-PLA at different levels of foaming to see for which applications it might be usable.
The material is available in black and white and sells for $45 a roll.
Test samples and methods:
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