Basic Fillet Question re Dimension

[Anonymous]

New to all this but learning and making some progress. I am working on the bottom of a basic cylinder that is 1-1/4" tall. All I want to do is round over the outside edge where the bottom meets the sides. So when I select the bottom edge and select Fillet, I am prompted to input a dimension. Say I input 1/2". What is the actual 1/2" telling it? Is it the radius of the fillet? If so, does that mean the fillet will go 1/4" in each direction from the selected edge totaling 1/2" altogether? In other words it would start where the edges meet, go 1/4" up the side and 1/4" toward the center of the bottom? Or is the 1/2" dimension telling it something else, like to go 1/2" up the side and 1/2" toward the center of the bottom? Thank you.

[JDMather]

1/2

You can verify by creating an associative 2D drawing.

[Anonymous]

Thank you, but I'm totally new to this and that answer did not help me at all. And what is an associative 2D drawing?

[TrippyLighting]

It is the radius of the fillet.

Or, in other words, if you cut your cylinder in half  right through the main cylinder axis, that crossection will be a rectangle 1-1/4" tall and as wide as the diameter of the cylinder you specified.

If you filleted the bottom edge you'll see two arcs on the bottom of the cylinder. THe radius of that arc is the 1/2" fillet radius.

[JDMather]

You can create a 2D drawing directly from your model and dimension it.

[Anonymous]

Thank you both, that was very helpful.