Abstract
The following quote was obtained by the news editors from the background information supplied bythe inventors: “Examples of the tool used in a robotic arm include welding tool, grinding tool and drillingtool. When the robotic arm is operated to perform welding, grinding or drilling tasks, the coordinates ofthe tool center point (TCP) of the robotic arm need to be calibrated first, so that the tool can properlymove on a predetermined path or trajectory.