I’ve been working with sketch up for over 8 hours, and I still find the simplest things to be extremely frustrating.

For example, 9 times out of 10, the auto inference system can not find the center of a circle.

I’ve tried:

Single Clicking the face, then trying to draw a line

Double Clicking the face,

Tripple Clicking the face

Converting to Group

Converting to Component

I have the best chance of finding the center by clicking the move tool, then trying to move the circle. Once the move tool finds the center, I quickly switch to the line tool and it can usually find it.

Can anyone explain to me why it is so hard to find the center of a circle? What am I doing wrong?