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Sketching Lecture

# Sketching Lecture - d1 = 10 sin(45 Constraint-Based...

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Questions What is Associativity? Why is it important? What is Bi-Associativity? What are some uses of a Pro/E part model?

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CGT 226 – Constraint-Based Modeling Department of Computer Graphics Technology Constraint-Based Sketching Features that require sketching Extruded features Revolved features Sweeps Blends Variable Section Sweeps Helical Sweeps Ribs
Constraint-Based Sketching What is included within a sketch: Geometry: Lines, Arcs, Circles, Splines, Ellipses, etc. Construction Geometry: Dimensions: (Linear, Radial, Reference) Dimension Relations Constraints: References:

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Constraint-Based Sketching Dimension Relationship: (Relations) Dimension one = (dimension two * 3) d1 = d2 * 3 d1 = (d2 + 5) / 4 d1 = 360 / p1

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Unformatted text preview: d1 = 10 * sin(45) Constraint-Based Sketching • Sketch Constraints: – Equal Length (equal Radii) – Vertical and Horizontal – Parallel – Perpendicular – Tangent – Line-up Vertical – Line-up horizontal – Coincident – Symmetric • Intent Manager Constraint-Based Sketching • Reference: When one feature uses another feature within its definition. Used to pass design intent from one feature to another. • Parent-Child Relationship: Constraint-Based Sketching Order of Operations for Sketching: 1. Specify References (Part and Assembly mode). 2. Sketch Geometry (including construction) 3. Apply Dimensions and Constraints 4. Modify Dimensions 5. Apply Dimension Relations Dimensioning Demo...
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Sketching Lecture - d1 = 10 sin(45 Constraint-Based...

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