Prototype
Adaptive EEG Actuators
Soft robotics, pneumatics, EEG hardware
Soft actuators for adaptive EEG electrode positioning using pneumatic control.
Designed soft actuators that sit above BCI electrodes to enable adaptive EEG recordings, with the goal of minimizing noise from small head movements. The actuators are driven by a pneumatic system with two valves for inflation, deflation, and holding pressure, allowing controlled electrode positioning.
The parts were cast in 3D-printed molds using Ecoflex 30 and bonded with silicone glue to maintain a through-hole shape. Version 1 expanded too broadly and became unstable, so it was replaced by a bellows-shaped version 2 that provides more linear motion and better reliability. The bellows grooves also act as channels for cable routing.
Highlights
- Pneumatic actuation for adaptive EEG electrode positioning
- Ecoflex 30 casting with 3D-printed molds and silicone bonding
- Bellow-shaped V2 improved linear motion and stability
Tools and Methods
- Ecoflex 30
- 3D-printed molds
- Pneumatic valves
- Silicone bonding