January 19, 2026
Description
The bioinspired soft walker is controlled by the fully integrated pneumatic logic gates. Plug a 4 mm pneumatic tube into the socket in its back and pressurize it with 1.75 bar @3.44 L/min and the soft robot starts to walk. Its gait is inspired by the diagonal gait of a turtle. If you want to read more about the science behind our soft robot and its control you can read the paper here: https://www.science.org/doi/10.1126/scirobotics.adh4060
This video shows the walker in action and its robustness:
And if you want to learn more about our research and our other robots please have a look at:
https://www.livmats.uni-freiburg.de/en/research/demonstrators
The soft robot is printed in TPU A70, please be aware to select avoid crossing perimeters.
Here are our print parameters:
Nozzle Diameter: 0.4
Default Extrusion Width: 0.3
Layer Height: 0.1
Perimeters: 5
Bottom Layers: 10
Top Layers: 10
Perimeter Generator: Classic
Avoid Crossing Perimeters: on
Seam Position: random
Infill: 95%
Print Temperature: 220 °C
Max Volumetric Flow: 0.5 mm^3/s
Over extrusion: 125%
License:
Creative Commons — Attribution — Noncommercial — NoDerivatives
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