Keep the force inside.
Compact actuators belong within the forearm. Bearings, fasteners, heat paths and service access belong in the design from the beginning.
Engineering / Custom actuationEnergy → movement → feedback
Power,
precisely placed.
A capable hand begins long before the fingertip. We design the motor, transmission and feedback together, so strength can live inside human proportions.
Motor / reduction / position sensingInteractive 3D / Actuation
Actuation · Three-dimensional study
Follow one continuous motion path.
The stator surrounds the rotor. A shaft drives the sun gear; three planets turn inside a fixed ring. Their carrier becomes the output.
Actuation principle study: simplified gear surfaces and prescribed motion. This four-to-one example is not the selected hand drive or a tested actuator.
Inside Actuation
- Motor
- A stationary electromagnetic structure and a rotating shaft introduce motion.
- Reduction
- The sun, planets and fixed ring connect the input to a slower output carrier.
- Bearing
- Supports the rotating assembly while the housing carries its reaction loads.
- Feedback
- A rotating encoder target and stationary sensor make position observable.
Compactness is a system decision.Follow the force
From the motor to the worldEvery connection
Every connection
has a consequence.
Select a stage to follow how electrical energy becomes contact, and how the hand learns what happened.
Explore the connections
The actuation loop
A functional diagram of the proposed hand architecture. Select a stage to inspect its role; this is not a wiring drawing or a force simulation.
A local driver regulates motor current. Electrical energy becomes shaft torque; losses become heat that the compact enclosure must remove.
Explanatory diagram · Select a connection to inspect its role.
The design ambitionStrong enough to hold.
Strong enough to hold.
Sensitive enough
to let go.
The useful measure of a hand is how it meets the object. It must build force when contact is secure, yield when contact changes, and release with the same care it used to grasp.
That asks more of a mechanism than a powerful motor. The tendon path, transmission, sensors and control timing must agree about what the fingers are doing.
We are pursuing the smallest complete system that can make that agreement reliable.
Three connected design problemsThe detail
The detail
is the architecture.
Preserve the tendon path.
A changing pose changes cable length. Useful motion requires compatible routes, adequate travel and measured tension—not a cable drawn between two points.
Close the loop.
Commands describe an intention. Sensors describe the result. A controllable hand needs both, with faults that stop the next action from compounding the first.
One revision.
Every consequence.
Changing a gear ratio changes speed, current, mass and heat. Changing a tendon guide changes travel, friction and control. Our engineering process keeps those relationships attached to the same design.
The arm programme remains in development. Full tendon routing, active electronics placement, sustained thermal performance and loaded grasp validation are open. The illustration above explains an actuation principle; native CAD, calculations and independent review determine the actual build.
How we test an idea