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Sketching · Lesson 4: Reusing sketches and pictures

Derived and copied sketches, and sketches traced over a picture.

Lesson goal

Save time by reusing an existing sketch, or by starting from a photo or a scanned drawing.

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2 videos

✎

1 exercise

Intermediate

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Prerequisite: Lesson 3

1. Watch the videos

Dassault Systèmes videos hosted on MySolidWorks: they open in a new tab and a free account is enough. Watch them in order.

Derived Sketch and Modify SketchVideo 1▶Derived Sketch and Modify SketchReuse a sketch: independent copy or derived sketch linked to the original.↗ Sketching Using Sketch PicturesVideo 2▶Sketching Using Sketch PicturesInsert, scale and trace a picture in the sketch.↗

2. Key takeaways

1

A derived sketch stays linked to the original: it follows its changes, only its position differs.

2

A sketch copy is independent: use it when the two profiles must be able to diverge.

3

A Sketch Picture is scaled from a known dimension, then traced with splines and arcs.

Tip

To reproduce an existing part from a photo, take it straight on, with a ruler in the frame: the scaling will be much more accurate.

3. Do the exercise

From a photo of a simple object (wrench, bracket):

  • insert it as a Sketch Picture
  • scale it with a known dimension
  • trace the contour and extrude it
✓To check: Overlay the part and the photo: the contours should match within a few tenths of a millimeter.

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