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

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

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

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

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

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

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

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

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

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

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

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

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

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

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