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Dimensions, Tolerance, Assemblies - Coggle Diagram

- - - - consists of several dimesnsions originating from a common reference
    - - simplifies parallel dimensions in order to reduce the space used on drawing
    - - to be used if the function of the object not affected by the accumlation of the tolerances
    - - used both chain and parallel dimensioning
    - - place arrow heads outside the extension line instead to make it easier to read
    - - To dimension multiple same dimensions (N x Dimension)
    - - A circle is dimensioned by its diameter
      - An arc is dimensioned by its radius
      - Holes are located by their centerlines
    - - Marked with a curved dimension line with degree symbol
- - - - A rigid joint fixes two components to one another. It provides no degrees of freedom
    - - A revolute joint has a single rotational degree of freedom, much like a hinge. This joint can rotate around the standard X, Y, or Z axis, or around an edge in the model (a custom axis)
    - - A slider has a single translational degree of freedom. It is used for components that slide along one another. Options are similar to revolute joint options, except that components slide along the selected axis rather than rotating around it
    - - A cylindrical joint provides two degrees of freedom: one translational and one rotational. Components joined with a cylindrical joint always rotate around the same axis
    - - A pin slot joint also allows two degrees of freedom, but components can rotate around different axes.
    - - A planar joint allows three degrees of freedom. It allows two directions of translation in a plane and a single rotational direction normal to that plane. It is useful for joining two components so they can rotate while sliding across the plane.
    - - A ball joint has two degrees of rotational freedom: pitch and yaw. Pitch allows components to rotate around the Z axis. Yaw rotates components around the X axis.