Available in: Sketch

Sketch a circle by defining three points along its circumference.

  1. Click the 3 point circle sketch tool icon (3 Point Circle tool icon).
  2. Click to set a start point.
  3. Click to set a second point.
  4. Click a third point to set the diameter.

Alternatively:

  1. Click the 3 point circle sketch tool icon (3 Point Circle tool icon).
  2. Click and drag to set a start point, then release to set a second point.
  3. Click a third point to set the diameter.

Optionally, immediately after the circle is created, input a numerical value (or type "=#" to input a variable) for the diameter and press enter. This dimensions the circle without having to use the dimension tool.

To input a variable in any dimension field after the geometry is already sketched, the equal sign (=) is not required. Type "#" to input a variable.

See the Learning center course Introduction to Sketching (Onshape account required) for more information.