So I'm attempting to knit this surface, create a solid out of it, and merge it with the other body. However, despite being in contact with the other body it does not want to merge.

As you can see, they are still separate bodies.

I tried Combine, but it doesn't allow me to select vertices for fillets like a normal body.

I also tried Intersect, but could get it to work.

Not sure what the problem might be. Any input would be appreciated.

Thanks