I recommend you to avoid cases like this where the revolved surface is made from combining profile curves joined to arcs. Instead, revolve the curves without the arc, then apply the 0,05 inch fillets, then apply the tiny filled at the bottom mentioned by @pascal.
Even though you can add those vertical fillets while keeping your original revolved surface, in the video tutorial below I opted to split it along the tangent with the ! _DivideAlongCreases _SplitAttangents=_Yes command. Just to show you how it would be better for your future work. Rhino sometimes tend to do bad surfaces while doing something with such compound revolved surfaces consisting a combination of curves and arcs.
An alternative solution is to use ! _SplitEdge to split the vertical edges A and D where they meed the tiny fillet at the bottom, then use ! _FilletSrf to apply 0,05 inch fillets there, then extend their bottom edge with ! _ExtendSrf. Then use the two vertical fillet surfaces to trim off the excess portion of the main model, then split the former and join everything.
Hi,
Pascal, I needed to fillet the verticals,
in the video we see how such interacts with the existing base ring one.
video,excellent MANY THANKS… to understand though a lot of steps just to add that fillet.
OMG
I imagined 4 fillets 4 clicks when I started.
It is not always possible to start with a clean slate annd do the large fillets then others.
Here the small underside rad was already there and if I get sent something as such, to have to undo work so as to do a fillet, is annoying.
the end result of the vid is whats required, though I have the other verticals to do with a different radii, but didnt want to complicate the issue here.
I could have filletCorner the outline, extruded surface downward and trimmed, sort of the video but less steps.
I wish Rhino was more clever in understanding whats needed, option to fillet in one direction, follow line and trim and close.