I'm trying to split an advanced object into 2. I do have read various articles and question on StackExchange - but I can't simply manage to succeed.
So far I've tried the Bool Tool Difference using a plane and also a box, and also the MACHIN3Tools Mesh Cut.
I've attached a screenshot of the plane I want to use for cutting into the object.
The goal is to have the top of the bust/statue remove completely, and have the bust/statue "closed" - so I can 3D print if with the slightly modified head missing something :)
If I use a box I get the following result, but I can't easily remove the top part, and the bust/statue also looks "open", which won't work with 3D printing.
How can I the easiest remove the top of the bust/statue with a plane or a box, alongside having the bust/statue closed (hope it make sense).