[Substracting a thin rectangle from an ellipse is not working properly?]

That's also working for me @Old Bruce!

I'm happy actually with both solutions, but it makes me curious why that happens. Try to figure out the orientation/fill behavior.

 

[Substracting a thin rectangle from an ellipse is not working properly?]

That's magic! Many thanks to you, it works as exptected. To be honest never mind that way to go.

[Substracting a thin rectangle from an ellipse is not working properly?]

Hi,

I try to substract a thin rectangle (blue) from an ellipse (red). The desired result should be the ellipse with a thin cut out (where rectangle lies over the ellipse), but what it gives me is a crashed form. I read through this forum and tried many advices (creating curves before substraction, changing fill mode after substraction) but nothing seems to work for me. Do you have any suggestions *hope*?

I attached a  document below.

substract_rectangle.afdesign