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E112 Lesson 6 - Coggle Diagram
E112 Lesson 6
Types of dimensioning
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Dimensioning of circle, arc and hole
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Rules of dimensioning
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Dimension lines, extension lines and object outlines should not crossover or overlap
Types of Tolerance
Bilateral Tolerance
allowed to vary in two directions from specified dimensions. Both directions need not vary by same amount
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Assembly modelling
multiple parts brought together to define a larger, more complex product representation
selecting the base component, central role
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Types of fits
Interfearance fit
difficult to move or remove, the two interfacing parts needs a lot of force to remove the parts.
Clearance fit
allowance of two parts to move, such as a door hinge
Type of joints
Rigid Joint
Fixes two components to one another, provides no degree of freedom
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