But then, chaos. The welding robot took 45 seconds. The painting robot after it took only 20 seconds. Soon, the buffer overflowed, glowing an angry red. Doors piled up in a digital traffic jam. The (her favorite tool) lit up like a Christmas tree: Station: Welding Robot. Utilization: 178%.
This was her third attempt.
She realized her mistake. She had used the default “Normal Distribution” for the robot’s cycle time. But real robots sometimes stalled for 5 seconds to clean their nozzles. She double-clicked the welding robot, opened the tab, and changed the distribution to “Negative Exponential.” She added a 2% Failure Rate with a repair time of 10 seconds. tecnomatix plant simulation tutorial