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I am building a car engine and I want to set it to smooth shading. But for some reason it does not work. Has anyone an idea how to fix that?

enter image description here

Here you can download the .blend file.

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up vote 7 down vote accepted

You have an edge split modifier which is causing the faces to look like they are not smooth shaded, but they are.

The edge split modifier is splitting the surface into individual faces so it is no longer a single surface that can be smoothed.

Increase the edge split angle on the modifier to reduce this effect.

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Ohhhh, yes how could I forget about the split angle. It was too small. Thanks! – Codey Mar 19 '14 at 15:48
@Codey If this answer helped you, you can mark it as 'accepted' by clicking the tick icon to the left of the answer. – Ray Mairlot Apr 2 '15 at 17:37
Sorry, I forget about that ;) – Codey Apr 2 '15 at 18:26

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