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dimensions, tolerances and assemblies - Coggle Diagram
dimensions, tolerances and assemblies
Dimensions
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Chain dimensioning
Only used when the function of the object will not be affected by the accumulation of the tolerances
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Tolerances
Biliteral tolerance
allowed to vary in two directions from the specified dimension. Both directions need not vary by the same amount.
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assemblies
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Revolute Joint
Has a single rotational degree of freedom, much like a hinge.
Fit
interference fit
there would still be an allowance for two parts to move, such as in a door hinge.
clearance fit
it would be difficult to move (or remove) the two interfacing parts. Usually, a lot of force is needed to remove the two parts. Examples are shafts that are fitted through bearings, so that the shaft does not slip.