Robot cells are characterized by high complexity and accuracy. Robots are often programmed “off-line” in, for example, ROBCAD software to minimize downtime during conversion. To check whether the ROBCAD model is a reliable representation of reality, we have used 3D laser scanning for verification. The scans were matched with the original ROBCAD drawings to find out if the robot cell was built correctly. Systematic control yielded some substantial differences that needed to be adjusted in the model. Thus, the “off-line programming” can take place in ROBCAD based on the actual layout and dimensions of the robot cell. In this way 3D laser scanning prevents expensive collisions and a loss of production time.