I want to fillet the edge generated from the intersection, shown in blue below. to do this, i tried to join the breps (i also tried boolean interection), but unfortunately this doesn’t generate the edge that i want to fillet. How can i do this?
In both cases what you need to first notice is that you can’t have a fillet with constant radius. Your fillet is maximal at the lower part of the cylinder and 0 at both ends of your blue line.
From there you can easily come up with a strategy to 1) find the intersection between both sets of cilinders and (2) then trim each of them by the intersection curve, and lastly (3) create a variable fillet