SEO mesh doesn't remove top of my wall

[Anonymous]

I'm modelling an unusual shape building.The main building - see on the attached screen shot - is created through mesh substraction from another mesh .When I place the wall and try to use the outer mesh - which forms the body of my building - as operator to shape my wall ( by subtraction upwards ) it doesn't work.Otherwise Mesh to Wall SEO works.

Any good tips welcome!

[Erika Epstein]

Ralph (Wessell)

How would Objective handle this design?

[Anonymous]

Vaaery nice work Norbert & vaaaaaaarey Exhausted .....I tried to make some thing like your model before by using Z of mesh in 3D but it needs hundreds of nodes and as you said (MONKEY's job) then I change all of my idea ...I hope AC
can solve these forms not in 30 second ...20 minuets will be ok..