Fillet problem

hoàng_long_trần

Hi, so I'm trying to fillet edge of two revolve (Revolve 1 and Revolve 2 or Surface 1 and Surface 2 - link below), but it seemed cannot detect any edges between them, beside of that, I tried Solidworks and it can detect it easily.
How to fix it? Is it just a feature that I need to do other more complex steps to let Onshape know that I want to "wake those edges" up? Urgh.
https://cad.onshape.com/documents/568f44cf36795e94d0b46ac2/w/d9f52058d6b8c2d5710412ec/e/421e96d43f6aae18e0e42328

S1mon

Those are two separate parts. Regular fillets can't be created between two separate parts or surfaces. You need to make sure that you use "add" instead of "new" when you create some of your features and make them solid, not surfaces.