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Dimensions, Tolerance and Assemblies - Coggle Diagram

- - - - It has an arrowhead on each end.
    - - ±0.2 is the tolerance. It defines how much the dimension is allowed to deviate.
    - - Extension lines continue or extend from the surface of the object and establish the size of the dimension. They do not touch the object lines and extend slightly past the dimension line.
    - - This is the base dimension. Usually the units (in mm) is not indicated on every dimension text, but at the bottom corner of the drawing.
    - - A gap between the object surface and the extension line, so it is not confused with the visible lines of the model
- - - - 1.Create 3D models and save
      - 2.Create drawings
      - 4.Save drawing
      - 3.Double click on dimension to specify tolerances
- - - - Rigid Joint
        
        Fixes two components to one another; it provides no degrees of freedom.
    - - Revolute Joint
        
        Has a single rotational degree of freedom, much like a hinge.