The language of the robot cell

Accuracy is how close a robot's actual pose gets to the absolute Cartesian pose it was commanded to reach.

The base frame is the Cartesian coordinate system fixed at the robot's mounting base, serving as the reference origin from which the arm's motion and other frames are measured.

Cycle time is the time a robot takes to complete one full repetition of a defined operation, from start position back to start.

Degrees of freedom (DOF) is the number of independent motions a robot can make, and six of them is what lets an arm place its tool at an arbitrary position and orientation in space.

A delta robot is a parallel-kinematic machine whose end-effector hangs from three arms driven by three base-mounted motors, giving very fast, light pick-and-place motion.

A digital twin is a virtual model of a specific robot or cell that mirrors its geometry, kinematics, and, when connected, its real-time state so you can simulate, validate, and monitor without touching the hardware.

An end-effector is the tool mounted to a robot's faceplate that does the actual work, such as a gripper, welding torch, vacuum cup, or dispenser.

Euler angles describe an orientation in 3D space as three sequential rotations about coordinate axes, which FANUC controllers express as W, P, and R.

Forward kinematics is the calculation that takes a robot's joint angles and computes the resulting position and orientation of the tool center point in Cartesian space.

Hand-eye calibration is the procedure that solves the rigid transform between a robot's camera frame and the robot itself, so pixel detections can be converted into robot coordinates the arm can actually move to.

Inverse kinematics is the calculation that turns a desired tool position and orientation in Cartesian space into the joint angles a robot must hold to reach it.

Jerk is the rate of change of acceleration over time, and limiting it is what makes a robot start and stop smoothly instead of snapping into motion.

Jogging is manually driving the robot from the teach pendant under operator control, done at reduced speed with the deadman held and the cell clear.

Joint interpolation (motion format J) moves a robot to a taught endpoint by driving all axes so they start, accelerate, and stop together, with no control over the path shape or tool attitude in between.

Linear interpolation is the motion mode (L) that drives the tool center point in a straight line from a start point to an end point while controlling tool orientation across the move.

Machine tending is the robotic loading and unloading of parts into and out of a production machine such as a CNC mill, lathe, press, or injection molding machine.

Mastering is the procedure that teaches a robot the correspondence between each joint's encoder count and its known mechanical zero position, so the controller reports absolute joint angles correctly.

Orientation is the tool's attitude in space, expressed as the three angles W, P, and R that describe rotation about the X, Y, and Z axes of the mechanical interface coordinate system.

Overshoot is how far the robot's actual position travels past the commanded target before it settles back to that target.

Path accuracy is how closely a robot's actual TCP trajectory follows the commanded line or curve between programmed points, measured during continuous motion rather than at stops.

Payload is the mass a robot can carry at its faceplate across the working envelope, and it has to cover everything mounted there, the end-effector plus the workpiece, not just the part being moved.

A pose is the complete spatial state of a rigid body: its position and its orientation together, six numbers for a body in free space.

Reach is the maximum horizontal distance a robot arm can extend from its axis 1 centerline to the wrist center.

Repeatability is how consistently a robot returns its tool to the same point when commanded to the same pose again and again, expressed as a tight ± band in millimeters.

A singularity is a robot pose where a wrist or arm control point lands on its control plane, so the controller can't resolve one unique configuration from the Cartesian coordinates and the robot can't move through it.

The Tool Center Point is the reference point of the tool frame, defined as an (x, y, z) offset from the robot's mechanical interface, that the controller uses as the point being positioned and moved.

A tool frame is the coordinate system attached to the robot's faceplate that defines the tool center point's location and orientation relative to that mounting flange.

A vacuum gripper is end-of-arm tooling that holds a workpiece by pulling air out from between one or more suction cups and the part surface, so atmospheric pressure presses the part against the cups.

A work envelope is the full three-dimensional volume of space the robot's tool center point can physically reach given the arm geometry and joint travel limits.

The world frame is a standard Cartesian coordinate system fixed in the robot's work space, and it's the reference that user and jog frames are built on top of.

On a 6-axis industrial arm, the wrist is the cluster of the three outermost axes (typically J4, J5, and J6) that orients the tool without moving the arm's reach.