Many of the movements of automated liquid handlers are controlled by the stored geometries of the labware being used. Often referred to as “Labware Definitions”, these geometries control not only how the pipetting tip locates the center of a container but also how the tip moves relative to the liquid during aspirating and dispensing. Many labware definitions are created by trial and error. This approach can take a great deal of time and is often inaccurate due to the complexities of the internal geometry. Small errors in defining labware can have a significant effect on the accuracy of liquid transfers. Telos has developed sophisticated tools and methods to accurately determine the dimensions of any labware type or configuration.