Add a tangent constraint to a sketch

Learn how to use the Tangent command to constrain a curve and another object in a sketch so that they touch at a single point but never cross each other in Fusion.

Note: The constraint commands are only available in the Sketch contextual tab as you edit a sketch.
  1. Click Sketch > Constraints > Tangent tangent icon.

    The Tangent constraint icon displays next to the cursor in the canvas.

  2. In the canvas, select the sketch geometry you want to constrain.

The sketch geometry snaps to maintain a tangent connection. A constraint badge displays next to the constrained geometry in the canvas, indicating that the geometry is constrained to remain tangent to each other.

tangent constraint example