The mechanism
We moved the axis.
The axis of rotation sits at the foot bed and stays there. The platform tilts through a mechanical joint with no slop, so the surface answers the moment you load it. Your ankle rotates around a fixed axis. Now the board does too.
Fixed-axis joint
The axis of rotation is held at the top surface. It does not travel, so the platform cannot slide out from under you.
Indexed tilt stops
Range is bounded mechanically. The board reaches its limit and holds rather than dumping you off the edge.
Pneumatic chamber
Air pressure sets how much the platform gives, from firm and controlled to soft and reactive.
Integrated compressor
Pressure is changed from the app or from the control on the unit. Nothing to swap, nothing to pump by hand.
Embedded sensor
Acceleration and angular velocity, sampled 800 times per second and sent to your phone over Bluetooth.


