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# Advanced Sketch Tools - PowerPoint PPT Presentation

Advanced Sketch Tools. Mirror Entities. Need to have an axis to mirror about. Need to determine axis of symmetry. Copy. Need to pick a ‘start point’ on the selected entities The ‘start point’ is the reference point for those entities. Rotate. Scale. Move. Linear Pattern.

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Presentation Transcript
Mirror Entities
• Need to have an axis to mirror about
Copy
• Need to pick a ‘start point’ on the selected entities
• The ‘start point’ is the reference point for those entities
Defining New Sketch Plane

Insert >> Reference Geometry >> Plane

• Need up to 3 references for the plane
Info for a plane

1 Point

1 Line

3 Points

1 Line

1 Edge

(in the same plane)

Info for a plane

Parallel Plane:

• Choose 1 reference face
• Choose 1 offset point/vertex

Plane at an Angle:

• 1 reference face – choose ‘at angle’
• 1 axis or rotation
Info for a plane

Offset Distance:

• 1 Plane – Choose ‘offset distance’

Perpendicular to:

• 1 sketch entity
• 1 point
Info for a plane

Tangent To:

• 1 non-planar face
• 1 point on the edge of that face
Understanding Projections

Projection:

• A “VIEW” of an object
• Intended to be shown on a PLANE

18

### Orthographic Projection(3rd Angle Projection)

40

Interpreting Views
• One method of interpreting sketches is to reverse the mental process used in projecting them
• Each view provides certain definite information about the shape of the object and all are necessary to visualize it completely
First- and Third-Angle Projection
• There are two main systems used for projecting and unfolding the views:
• Third-angle projection which is used in the United States, Canada and some other countries
• First-angle projection which is primarily used in Europe and Asia
• You should understand both methods