Using one body to stamp another with the split tool, stuck.

[jonYDM8U]

I thought I could easily create a slope for my vanity sink with a slot that could be used as a splitting tool to cut the shape out of the sink bottom, but when I split and cut, nothing seems to be removed from the target body.

Perhaps someone can shed some light on what I'm doing wrong.  Thanks.

https://knowledge.autodesk.com/community/screencast/ebabaf9e-eba4-4d44-acbc-3d78451ec574

[jhackney1972]

Maybe a better idea would be to make your sloping bottom a surface and use the Replace Face command.  If you attach your model to your post, others may be able to help you faster.

[TrippyLighting]

Can you share your model?

[WHolzwarth]

Following your way, I've "filled" the sink sketch with faces and stitched them to a cutting body.