1. Design Intent
Stephen H. Simmons
TDR 200
Copyright - Planchard 2012

2. Design Intent Design Intent is NOT the intent of the design.
Design for change.
Utilize geometry for symmetry, reuse common features, and reuse common parts.
Copyright - Planchard 2012

3. Design Intent (Cont:)
Build change into the following areas that you create:
sketch, feature, part, assembly or drawing
Copyright - Planchard 2012

4. Design Intent (Cont:)
How your model reacts as parameters are modified.
Example 1: If you have a hole in a part that must always be .125≤ from an edge, you would dimension to the edge rather than to another point on the sketch. As the part size is modified, the hole location remains .125≤ from the edge.
Copyright - Planchard 2012

5. Design Intent (Cont:)
How your model reacts as parameters are modified.
Can you use End-Conditions to address design Intent?
What are the various End-Conditions?
Copyright - Planchard 2012

6. Design Intent - End Conditions
Blind - Extends the feature from the selected sketch plane for a specified distance - default End Condition.
Through All - Extends the feature from the selected sketch plane through all existing geometry.
Up to Next - Extends the feature from the selected sketch plane to the next surface that intercepts the entire profile. The intercepting surface must be on the same part.
Copyright - Planchard 2012

7. Design Intent - End Conditions
Up To Vertex - Extends the feature from the selected sketch plane to a plane that is parallel to the sketch plane and passing through the specified vertex.
Up To Surface - Extends the feature from the selected sketch plane to the selected surface.
Offset from Surface - Extends the feature from the selected sketch plane to a specified distance from the selected surface.
Copyright - Planchard 2012

8. Design Intent - End Conditions
Up To Body - Extends the feature up to the selected body. Use this option with assemblies, mold parts, or multi-body parts.
Mid Plane - Extends the feature from the selected sketch plane equally in both directions.
Copyright - Planchard 2012

9. Design Intent (Cont:)
How your model reacts as parameters are modified. Use:
Design Tables
Copyright - Planchard 2012

10. Design Intent (Cont:)
How your model reacts as parameters are modified. Use:
Global Variables
Copyright - Planchard 2012

11. Design Intent (Cont:)
How your model reacts as parameters are modified. Use:
Equations
Copyright - Planchard 2012

12. Design Intent (Cont:)
How your model reacts as parameters are modified. Use:
Geometric 2D relations
Horizontal
Vertical
Collinear
Perpendicular
Parallel
Etc.
Copyright - Planchard 2012

13. Design Intent (Cont:)
How your model reacts as parameters are modified. Use:
Mates:
Symmetric
Width
Lock
Parallel
Distance
Etc.
Copyright - Planchard 2012

14. Design Intent (Cont:)
How your model reacts as parameters are modified. Use:
Symmetry
Copyright - Planchard 2012

15. Design with Symmetry - Summary
Symmetry important when creating a 2D sketch, a 3D feature or an assembly.
Mirrored shapes have symmetry where points on opposite sides of the dividing line (or mirror line) are the same distance away from the mirror line.
For a 2D mirrored shape, the axis of symmetry is the mirror line.
For a 3D mirrored shape, the symmetry is about a plane.
Copyright - Planchard 2012