datumgräns
A datumgräns, often translated as datum line or baseline, is a fundamental concept in metrology and engineering used as a reference for measurements. It establishes a defined starting point or an imaginary line from which other dimensions, positions, or geometric features are measured. The purpose of a datumgräns is to ensure consistency and accuracy in manufacturing and inspection processes, allowing for the reproducible measurement of parts and assemblies.
In practice, a datumgräns can be represented by a physical feature of a part, such as a
The concept of datumgräns is closely related to datum features and datum targets, which collectively form a