Thursday, March 3, 2016

Why do we use DATUM?

datum is a point, line, or surface from which dimensions are taken. It is the place to start. This is important to note when marking out a job. The datum can be a single point eg the centre of a hole or face of a feature to a component.
A datum is used to reduce errors when marking out, and measuring by reducing the accumulation of errors.
Can you find the datums on this drawing?
Datum points

1 comment:

  1. Hi!

    I trust this is Adam that has made the very helpful videos through the YT channel "Engineering Solved"?

    If so, I would be extremely appreciative to get ahold of your Excel workbook: https://www.youtube.com/watch?v=RN0EScURIOY&list=LL8ekCXKJA1d6tmDTc0iYKcA&index=4&t=0s

    Wish you all the best!

    Kind regards,
    Martin

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