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What I mean:

How can cut this groove?

The "channel" doesn't go all the way through, probably only half way or so (Using a picture to build my model so I can't tell for sure). It's suppose to be a height adjuster like you would find on a lawnmower for the height of the blades. was wondering if I could use the boolean modifier but I didn't know if one shape has to go all the way through the other shape for the modifier to work properly.

What do you's think?

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Create an object with the shape and depth of your cut.

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And use a Boolean Modifier to cut the shape of that object on to the other.

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You can use knife project.

By hiding the faces you don't want to cut, you can control which faces get cut with the shape and which are left uncut.

Example:

With the shape object selected, Shift-Select the object you want to cut and enter edit mode:

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Select the bottom faces (the ones you want to preserve with no cuts) and Hide them (H)

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Then in top orthogonal view press the Space Bar and type Knife Project. Enable Cut Through** and then unhide the hidden faces (AltH)

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  • $\begingroup$ After you knife project you can then select the inner faces and transform them along the normal (alt+s by default I think) if you want an inset rather than a hole all the way through. $\endgroup$ – Ben Sep 5 at 22:58

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