How to Cut an Object using Knife Project in Blender 2.77

Do you want to make holes in an object? In this video, we will learn how to use Knife Project to cut holes in an object in Blender. Let's see how it works.

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Step 1: Add a cube by pressing Shift + A » Mesh » Cube

Add a new cube in Blender

Step 2: Add new circle by pressing Shift + A » Mesh » Circle


Step 3: Enter the R key, hit the X key and type 90 to rotate the circle 90 degrees around the x-axis.


Step 4: Press the Numpad 5 key to switch from Perspective View Mode to Orthographic View Mode (» Read more: How to change between Perspective (Persp) and Orthographic (Ortho) Views in Blender ).


Step 5: Enter the Numpad 1 to view from the front of the cube


Step 6: Hit G to move the circle to the center of the box. And press the S key to scale it.


Step 7: Enter A to deselect all visible objects in the scene. Hold the Shift key, right click on the circle first, then right click on the cube


Step 8: Switch to Edit Mode by pressing Tab. Select Tool » Knife Project. Press T to open the Mesh Tools panel if you don't see the Mesh Tools.


I. Case #1

If you select the Cut through item in Knife Project, you will cut both two sides of the cube


Step 9: Press the Delete key » Faces to cut holes in the cube.


II. Case #2

If you deselect the Cut through item in Knife Project, you will cut only one side of the cube - the front of the cube


Step 9: Press the Delete key » Faces to cut a hole in the front of the cube delete-face-to-cut-a-hole-in-the-front-of-the-cube-in-blender-2-77