Lecture Autodesk inventor Part creation

Lecture Autodesk inventor Part creation. The main contents of the chapter consist of the following Sketched features, sketched feature operations, sketched feature terminations, base feature, adding sketched features, another sketched feature.

Part Creation

Sketched Features

Sketched features include: Extrude

Revolve

Sweep

Loft (Blend)

Others (e.g., Rib, Coil)

Sketched Feature Operations

Boolean operations are included as part of the feature construction

Operations include:

Join (Union)

Cut (Subtract)

Intersect

Sketched Feature Terminations

To Next – extrude to next

surface

From To – extrude from one

existing surface to another

To – extrude to selected

surface

Angle – revolve through a

certain angle

Full – revolve 360 degree

Through (All) – extrude all the way through a part Blind (Distance) – extrude to a fixed depth

Base Feature

the first model

feature to be

created

Other features are

created using

constraints that

locate them relative

to the base feature

Base Feature

Adding Sketched Features

Establish a sketch

plane (share sketch)

Sketch

Constrain

 Some constraints

used to relate new

feature to base

feature

Create Feature

 Extrude, Join

Another Sketched Feature

New sketch plane

Create Feature Extrude

Cut

Sketch

Constrain

Dimension

Sketched Feature Requiring a Work Plane

If there are no convenient

faces that can be used to

orient a sketch plane, a

work plane must be created

Sketch, constrain

Create feature Extrude, Join

Placed (Referenced) Features

Placed features are

features that do not

require a sketch

Examples include

holes, chamfers,

fillets and shells

NOTE: In Inventor,

holes require that

center points be

placed on sketch

Parent-Child Relationships

Parent-child relationship refers to way in which one feature is derived from, and consequently dependent upon another feature

Child must appear below parent in feature tree Base feature is parent to all other features

Parent deleted  child deleted

Feature Modifications

Part Creation

Cul De Sac