Microfluidic Salamander

Source: will.i.am · 14m video

Why I saved this

Direct inspiration for the salamander-v2 project. The research group takes a biological model (axolotl locomotion) and reproduces it using embedded microfluidic channels instead of motors — fluid pressure drives the limb movement rather than mechanical actuation.

Key takeaway

The breakthrough is casting the actuation system into the body material rather than attaching it externally. The channels are formed during the molding step. This is the same principle I’m trying to apply with the peristaltic pump — the fluid system becomes structural.

What I’m borrowing

• The vertebral spine approach (segmented, tendon-driven) — directly applicable to salamander-v2’s spine problem
• The concept of differential channel pressure for turning (left channels inflate, right channels don’t)
• Their silicone formulation notes (softer than I’ve been using — need to look up the Shore A rating)

What’s different in my version

Mine is much lower fidelity. They have clean fabrication; I have a Bambu printer and a cast silicone kit. The goal is directionally similar — a compliant quadruped — but the method is hobbyist, not lab.