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DIMENSIONS, TOLERANCES & ASSEMBLIES, What are they?
They are…
DIMENSIONS, TOLERANCES & ASSEMBLIES
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ASSEMBLY MODELLING
What is it?
It is when multiple parts are brought together to define a larger, more complex product representation.
How does it work?
Constructing an assembly begins with bringing in a base component due to its central role. Each component brought in needs to be oriented & located relative to other components in the assembly. Assembly joints are used between elements of components
Types of Joints in Fusion 360
- Rigid
- Revolute
- Slider
- Cylindrical
- Pin Slot
- Planar
- Ball
Bill of Materials (BOM)
Information in the BOM includes:
- Part Number
- Material
- Quantity of each part
What are they?
They are numerical values that are indicated with a unit of measurement (mm) in drawings with lines, symbols or notes.
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Why do we need them?
They help to provide clear & accurate information with regards to the size of the object
Parts of a dimension
1) Dimension text
2) Tolerances
3) Dimension Line
4) Extension Line
5) Extension Line Offset
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Rules of Dimensioning
1) Dimension & Drawings must be neat
2) Dimensions should not be duplicated
3) Avoid dimensioning to hidden lines & features
4) Dimension lines, extension lines & object outlines should not cross over overlap
