Hi Burr,

> Am I fooling myself to think this is a representation
> of a variable fillet?

Yeah actually technically it is a kind of variable radius fillet, since the radius is not fixed and varies throughout the length of the fillet.

But normally "variable radius fillet" means something else, which is a fillet where you have more manual control over setting specific radius values at different spots along the fillet.

The "Constant distance" method automatically varies the radius to fit that single distance value (where the distance is a chord of the arc - the chord plus tangent conditions will determine the radius), it doesn't let you control the radius manually.

- Michael