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Line Cut


New member
Hello everyone.

Have a quick question about line cutting. I am not sure what is the correct term for what I am looking for. Every product for those lines showing how the parts are put together. Maybe it is called the parting lines or parting cut. For example, if you look at the cellphone from the back, there is a cut line to remove the battery cover. How do you make a cut on an object and even make a cut on the curve objects.

Another example is a car, like the line cut to make the door.

Rhino 3D.jpg

Thanks for any advice!