Datums

A datum, is a point, line or surface of a component to which dimensions are referred and from which measurements are taken during inspection. The datum point or points on a component are in

Engineering Symbol For Datum Point

reality datum features since it is with respect to features that other features relate. Thus, the various features on a component are dimensioned with respect to datum features. The definition of a datum feature will be dependent upon the functional performance of a particular component. In the example shown in Figure 4.2, the datum faces are the flat faces where the underside of the hardened insert contacts the step in the movable jaw. The 15mm dimension to the centre line of the bolt and the 30mm dimension to the top of the movable jaw are dimensioned from the datum surface. The underside of the movable jaw is 10mm from the datum surface but it is in the opposite direction and hence is labelled '-10'.

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Responses

  • CARAMELLA
    What is an engineering drawing datum?
    8 years ago
  • SAMIRA WELDE
    How draw the mechanical drawing with datum?
    7 years ago
  • ambrogino bianchi
    How to make datums engineering drawings?
    7 years ago
  • amina
    What are datum points,datum lines and datum faces?
    3 years ago
  • EMMI
    What is a datum point in engineering?
    2 years ago
  • paul
    How to draw datum line in engineering graphics?
    2 years ago
  • Jose Cisneros
    HOW TO ANALYSIS DATUMS DRAWING?
    11 months ago
  • darren
    How to find datum points on an engineering drawing?
    9 months ago
  • ambessa russom
    What is the datum in engeering?
    6 months ago
  • Mindy
    How to make a datum line engineering?
    6 months ago
  • negassi
    What is a datum engineer drawing?
    5 months ago
  • diamond
    How to insert datunms in an egineering drawing?
    4 months ago
  • Eila
    How to find datum point on drawing?
    4 months ago
  • p
    How to select a suitable datum in engineering?
    3 months ago
  • patricia
    How are datums identified in engineering drawing?
    1 month ago
  • semere
    What are datum lines engineering?
    1 month ago
  • jussi
    How to check a materials datum engineering?
    21 days ago
  • Andrew
    How to check datums engineering?
    21 days ago
  • Mikki
    How are datums shown on drawings?
    6 days ago
  • cassandra esposito
    How to create datums on drawing?
    2 days ago

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