The way I would make this is as 2 intersecting polysurfs connected by a loop of fillets that look like this:
FilletLoop.3dm (2.6 MB)
If you use the script found here it takes just 2 clicks to connect the 2 pollysurf into one.
The way I would make this is as 2 intersecting polysurfs connected by a loop of fillets that look like this:
If you use the script found here it takes just 2 clicks to connect the 2 pollysurf into one.