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Crash Test Winner
by Carolyn Schwaar Oct 4, 2025
Which infill pattern enhances the crashworthiness of your 3D printed parts?

In a new study, which may not come as a surprise to veteran makers, the cubic-subdivision won out over the octet, gyroid, grid, and concentric, among five others, as the infill that had the highest energy absorption efficiency due to its desirable "progressive folding" failure mode. This ensures that parts, like helmets, can absorb a maximum amount of energy while transmitting the minimum amount of peak force. Researchers used glass-filled PLA.

Source: Demo sphere by Nicholas Seward
About the Author:
Carolyn is All3DP’s senior editor and a journalist with 25+ years covering business and technology. Passionate about making tech accessible, her work also appears on Forbes.com.
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