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I am pretty new to blender, trying to cut a mesh in different pieces. I know I can cut a mesh and then separate the mesh using the bisect tool, but I don't want to cut the plane, I want to separate based on a cut I made earlier. I have already made the cut using the cut-through function, but I am a bit lost once I have made the cut.

I want to be able to select one of either sides and separate it in two different meshes, but so far no luck. The picture is seen from above, but I want to select all the vertices left from the drawn line and separate them, thus having 2 different objects.

enter image description here

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    $\begingroup$ Once you've cut, press V to rip the mesh, then put your cursor over the left or right part, press L to select. To separate as a new object, press P $\endgroup$
    – moonboots
    Jan 5 at 16:57

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Here's a demo of what @moonboots has stated in his comment. In Edit Mode, press K to start Knife Tool then make your cut and press Enter (aka Return Key) to confirm the cut. Leave the cut vertices highlighted while returning to Select Box mode. Then press V to Rip Vertices and then immediately press Enter to confirm the Rip operation. Then hover over any side of the mesh you want to separate and press L to Select Linked faces. Press P > Selection to Separate the selection into its own object. Now you can tab back into Object Mode. Notice you have separated the mesh into 2 objects.

enter image description here

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  • $\begingroup$ Make sure all your vertices in the cut are highlighted $\endgroup$
    – Harry McKenzie
    Jan 6 at 15:07

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