Fusion
It is hard to tell if the edge has been projected into the sketch which would probably allow the snap of the sketch to it. Some Fusion users do not like this Preference Setting but I find it very useful in such situations.
John Hackney, Retired
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In the video, it looks like the cursor snaps to an edge of existing geometry.
Is that not the expected behavior?
I can't say that I've experienced any problems with any snapping behavior.
For reference, I have used CAD professionally for machine and product design for well over 3 decades. 25 years of those in 3D. I've used Fusion for almost 10 years (alongside a number of other CAD systems, namely SolidWorks and ZW3D).
The setting @jhackney1972 is referring to I turned off shortly after starting to work with Fusion. I never use it!
It is supposed to make things easier for beginners, but it is more detrimental than helpful.
Sketches are the foundation of 3D modeling in Fusion, and I don't want anything in my sketch that I've not explicitly included! If I want to reference other geometry that isn't part of the sketch, I project it into the sketch, and then snapping works just fine.
