Hallo Karsten,

>> Dosen't look like two solids;-) Please explain: What is base object, what is substractor and what should the result looks like.
>> And if the file is not confidential - please post it - so everyone can have a look and maybe find a solution.

Base object is the cab, cut object is the cube, both solids.
Purpose : Cutting the window(s) out of the cab side(s).
3dm attached.

mfg Oliver.

>> p.s.: Und ich dachte, nur der rote Baron kommt aus der Sonne ...
nein, auch unsere Jäger in der BoB