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Isometric views and orthopedic projections - Coggle Diagram
Isometric views and orthopedic projections
isometric projection
principal edges equally inclined to viewer and of true length
constructed on 3 axes
cannot converge
orthographic projection
way of representing designs
collection of 2d drawings to define 3d model
6 possible views
first and third angle projections
first angle: object placed between observer and plane of projection
third angle: plane of projection between observer and object
types of lines
visible
represent features of object visible in particular view
drawn as solid, thick line
essential for conveying shape + details, provide clear and accurate representative of object's geometry
hidden
represent features that are not visible in a particular view
drawn as a dashed line
help convey internal features of object
crucial for understanding complete structure of object + internal components
center:
indicate centres of holes, cylinders, symmetrical features.
drawn as alternating long + short dashes
accurately locate and align features
ensure that symmetrical features properly positioned and aligned