Weird Diagonal Lines When Extruding Circle

[bsdrury1s]

Hello,

I am brand new doing my first tutorials. I essentially know zero about Fusion 360.

In this Youtube video ( https://www.youtube.com/watch?v=HXRMzJWo0-Q ) , the dude extrudes a circle and the result is the gray "solid" / "face" (I'm still learning the terminology so bear with me.) allows him to create a new sketch to hollow out the inside of the circle.

I must have a setting wrong that I have no idea how to identify. When I extrude the circle, I get some odd diagonal lines instead of the gray and have no options to create a sketch. How do I get the diagonal lines to turn into gray?

Thanks
Brandon

[jeff_strater · Accepted solution]

It looks like you have a section analysis active in your model.  See the photo below.  Just click on the lightbulb icon for this analysis to disable it:

[bsdrury1s]

Well, that was easy!  Thank you very much!