Sketching Essentials

Accurate Snapping

• Curves must be snaped accurately when you use the Curves for surface modeling.
• When a Vertex is snapped to a Curve or another Vertex, it turns from purple to blue-green.

• To snap precisely
  • When moving a Vertex, hold Ctrl to enable snapping.
  • When drawing in a sketch, you can snap without holding Ctrl if Object snapping is enabled.
  • See Grid and Snap for more information.

Snap Reference Lines

• When drawing, you can create temporary reference lines to aid snapping. Point the cursor to an object and tap Shift. Snappable reference lines will appear.

Specify Dimensions Numerically

• You can specify the dimensions and angles of a sketch numerically: press the Tab key and a numeric input box will appear on the dimensions.

Constrain to an Axis

• Press the X/Y, or Z key to constrain the cursor's movement to a single axis.

Use Knife Mode

• Use Knife mode to cut one or more Faces as you draw a Curve. You must snap to points on the target Faces as you draw.