To Create an Intersect Circle
By using the Intersect option, you can create a Constructed Circle by intersecting a cylinder and a plane. The plane must be normal to the axis of the cylinder, so that the intersection is a circle.
1. Click > 
Circle. The CMM Construct tab opens.
Circle. The CMM Construct tab opens.2. Select the parent reference Csys from the Parent Csys drop-down list.
3. Select Intersect from the Type drop-down list.
4. Select 2 measure or construct steps in any order.
a. Select a measure or construct step of type cylinder.
b. Select a measure or construct step of type plane.
5. Click OK.