The number of welding robots used in manufacturing has been growing now for decades, and robotic welding today commands 20% of industrial robot applications. This allows companies to increase accuracy, repeatability and throughput. One step that has been difficult to automate is the correct placement of parts before the welding procedure. It is a critical step that is prone to error; proximity sensors can detect the correct placement of a part. However, factory conditions frequently cause damage to these sensors, requiring replacement and maintenance, rework, and downtime. Relimetrics replaces proximity sensors, making the process much more efficient and reliable. It optimises the welding process, reducing cost and increasing accuracy, repeatability and throughput.