In this video,
You will get to learn,
-Datum
-Datum Reference Frame
-3-2-1 Principle
-Order of Precedence.
Please checkout our other videos also,
Tutorial 3: GD & T Symbols & Terminologies(Part 1): https://youtu.be/qFUk7J6-ubs
IMP Subjects for Design Engineers: https://youtu.be/veWFp4cg6R8
First angle & third angle of projection: https://youtu.be/eLIIGTyk4yc
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