3D profile/Offset Pocket Operation?

[twchambers]

I'm trying to cut a channel of a fixed width into my part. The base of the channel has a varying height.
The pocket or profile (inside) operations are not suitable as they can only work with a fixed z depth. Using something like 'parallel' works, but is very inefficient as the edge of my channel doesn't align with the angle of the path.
Is there some way to do a 3d profile operation?

[abosafia]

You can use 3d pocket
https://www.youtube.com/watch?v=pbXsssWsDLs

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