Sketcher Overview When should you use a sketch? Whenever you have a need for parametrically controlled curves. To sketch shapes that are not available as standard form features. When a combination of features used to create the desired shape make the shape difficult edit. Should there be a commonly used shape that varies in size from part to part,a sketch as part of a user defined feature should be considered. Sketches may be used as base features of a model if the shape lends itself to extruded or revolved geometry. Consider sketches for guide paths for swept features,or as generating curves for free form features. Shanghai Jiao Tong University 6Shanghai Jiao Tong University 6 Sketcher Overview n When should you use a sketch? n Whenever you have a need for parametrically controlled curves. n To sketch shapes that are not available as standard form features. n When a combination of features used to create the desired shape make the shape difficult edit. n Should there be a commonly used shape that varies in size from part to part, a sketch as part of a user defined feature should be considered. n Sketches may be used as base features of a model if the shape lends itself to extruded or revolved geometry. n Consider sketches for guide paths for swept features, or as generating curves for free form features