Project model edges

Project brings edges of the model into the sketch as fixed geometry. Use them to draw against the model: a lid along the rim of a box, a pocket around a boss. Projected geometry follows the model when it changes.

Access: Sketch mode toolbar > Project (P).

Steps

1. Click Project.
2. Click an edge of the model to project it, or a face to project all of its edges.
3. Draw and constrain against the projected curves.

How projected geometry behaves

• It is fixed: it cannot be dragged, trimmed or extended. Constraints and dimensions to it work as to any curve.
• At every rebuild it moves to where its edge is now, so the sketch follows changes earlier in the history.
• If its edge is gone, it stays where it was and the sketch shows a warning (SKETCH_PROJECTION_DANGLING). Delete the projection and project the new edge.
• Delete a projected curve or point to remove the whole projection.

Limitations

• Straight edges and circles or arcs parallel to the sketch can be projected. Other curves, such as a circle seen at an angle, cannot yet.
• Edges of features after the sketch in the history cannot be projected into it.

Related

• Create a sketch
• Troubleshooting