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Dimensions, Tolerance and Assemblies - Coggle Diagram
Dimensions, Tolerance and Assemblies
Types of dimensions
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Dimensioning Circle, Arc and Hole
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Rules of dimensioning
Dimension lines, extension lines and object outlines should not cross or overlap
Dimensions should not be duplicated, i.e. same dimension should not be repeated on different views, or the same information need not be given in two different ways
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Types of Tolerance
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Bilateral Tolerance: allowed to vary in two directions from the specified dimension. Both directions need not vary by the same amount.
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Assembly Modelling
Constructing an assembly normally begins with bringing in a base component, selected because of its central role. Each component brought in needs to be oriented and located relative to other components in the assembly. Assembly joints are used between elements of components.
In an assembly model, multiple parts are brought together to define a larger, more complex product representation
Types of Joints
Revolute Joint: Has a single rotational degree of freedom, much like a hinge.
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