What is the datum dimensioning method?
Thereof, what is the difference between chain dimensioning and datum dimensioning?
Chain dimensioning is when size dimensions of each object are listed such that the dimensions are lined up next to each other. Datum dimensioning is dimensioning in reference to a single point (datum = one piece of information).
Furthermore, what is the difference between size dimensions and location dimensions? Size dimensions describe the size of each geometric feature. Location dimensions tell the viewer where edges occur inside an object view.
Beside this, what are datum levels?
datum level A surface or level which is regarded as a base from which other levels can be counted (i.e. a datum). For example, sea level is often used as a datum level against which the height of land and depth of the sea bed are measured.
Which type of tolerance specifies a range of acceptable measurements rather than a target dimension?
A tolerancing method using an absolute maximum and minimum allowable dimension. Limit dimensioning specifies a range of acceptable measurements instead of a target dimension.