Hello, I can't use rib feature here due to following reason: "The resulting rib did not intersect the existing model. Please try changing the "Extrusion direction" to fix problem".
I tried to change the direction but it failed to create feature to.
I can't find what's wrong with it !
The end-to-end of your sketch would let the resulting edges of the rib extend beyond your part.
Move your scetch so the end points are not coincident to the two circles or make your rib with the extruded boss feature instead.
Thanks for your comment !
As far as I understand, I removed the coincident relationship of the two end points of the line, but still get the same problem.
But I can not understand how to "make your rib with the extruded boss feature instead" ?!
I solved it by adding this piece of line and the plane