Blender Cut with a Plane

Question

I have created a tube like object that has different radius sizes every 5 cm. I took this tube and put a cube around it. Cut out the form of this tube out of the cube (boolean modifier, difference).

Now I have a cube that has a hole through it with the form of the tube. I would like to position a plane at the center of this cube and cut it in half. Boolean Modifier does not work. Difference only gives me one half of the cube. But I want two pieces. Subdivide the cube faces and select the vertices and separate is great, but leaves the inner structure uncut.

Is there a simple way to cut this in half ? Is there an addon/script that does this ?

I already lost too much time on this and I need to solve it.

thank you for your help !

Solution

Not too easy to imagine without a screenshot so I might be totally wrong. If the boolean modifier does the job as required and provided that it's possible to choose which half to get, I would:

1. Duplicate the object in object mode (Shift-D)
2. Apply the boolean modifier to each object so that you get the two halves spread over two objects
3. Merge both objects

Maybe you can post a screenshot if I am totally wrong.

Comments

[digit]

Thanks. I solved this by going into wireframe mode, select everything I want and hit P. I am still not 100% happy because selecting by hand is a bit painful but at least I have what I need. Thanks.

[Kay]

@user413734 hav a look at Selection Modes especially Linked, Circle, Border, Extend selection

[Raaz Tuladhar]

Yep a image would be a much more help. but i think as he mentioned duplicate the object in object mode (Shift-D) will be the best option in this matter