The forebeam is the distal structural link on a manipulator arm, bridging the gap between the elbow joint and the wrist or gripper assembly. It must balance high rigidity to prevent deflection under load with low mass to minimize inertia during rapid movements. Engineers often manufacture this section from cast aluminum or carbon fiber composite to optimize the payload capacity of the entire kinematic chain.
Check the cable routing along the forebeam, it looks like the pneumatic lines are catching when the wrist rotates past ninety degrees.
Also heard as
- forearm
Related terms
Work envelope
The three-dimensional boundary of space that a robot arm can physically reach.
Workspace
The complete set of spatial coordinates that a robot's end-effector can successfully reach.
Underactuate
To design or control a mechanical system so that it has fewer independent motors or actuators than its total degrees of freedom.