![Image](https://abload.de/img/g03403710k8d74.png)
First of all, let's add this image. Go to the front view (numpad 1) and press shift a. Then go to Image > Background.
![Image](https://dotec3d.eu/images/tutorial/rim/1.png)
After that, we have to move it a bit down. Press g then z. Use the number I show in the picture.
![Image](https://dotec3d.eu/images/tutorial/rim/2.png)
Then let's create a simple plan. Pres shift a and go to Mesh > Plane
![Image](https://dotec3d.eu/images/tutorial/rim/3.png)
Now we only want 2 vertices, not 4. let's scale it all to y zero. Go to Edit Mode, select all (press a), press z then y then 0. After that press alt m to merge them. Or go to the top menu > Mesh > Merge > By Distance
![Image](https://dotec3d.eu/images/tutorial/rim/4.png)
Now we have to move it into place, select all, press g and move it like in the picture
![Image](https://dotec3d.eu/images/tutorial/rim/5.png)
Now select only the right vertice.
![Image](https://dotec3d.eu/images/tutorial/rim/6.png)
And move it to the left.
![Image](https://dotec3d.eu/images/tutorial/rim/7.png)
Now we use extrude. Press e and use x or y to move it.
![Image](https://dotec3d.eu/images/tutorial/rim/8.png)
Continue with extrude
![Image](https://dotec3d.eu/images/tutorial/rim/9.png)
After that we have this mesh. If you want to fill a hole (probably the last piece) select both vertices and press f
![Image](https://dotec3d.eu/images/tutorial/rim/10.png)
Now we add a Screw Modifier
![Image](https://dotec3d.eu/images/tutorial/rim/11.png)
Change the Axis to x
![Image](https://dotec3d.eu/images/tutorial/rim/12.png)
Set the Steps Viewport to 28
![Image](https://dotec3d.eu/images/tutorial/rim/13.png)
Apply that all
![Image](https://dotec3d.eu/images/tutorial/rim/14.png)
Now add the Weighted Normal modifier. Set the Weighting Mode to Face Area & Angle and select Keep Sharp
![Image](https://dotec3d.eu/images/tutorial/rim/15.png)
Now we have to enable Auto Smooth. Set it to 70°
![Image](https://dotec3d.eu/images/tutorial/rim/16.png)
Almost done. Now we bevel the edges a bit. In Edit Mode go to Edge Selection. Click on one edge, hold shift alt and click on the edge next to that.
![Image](https://dotec3d.eu/images/tutorial/rim/17.png)
Now go to the front view, change the viewport shading (Look above the colored y x z axis there are a few balls). Now press Ctrl b and move the mouse cursor
![Image](https://dotec3d.eu/images/tutorial/rim/18.png)
Looks good. Now continue with the other edges.
![Image](https://dotec3d.eu/images/tutorial/rim/19.png)
It will now look like this.
![Image](https://dotec3d.eu/images/tutorial/rim/20.png)
Let's do that with the other edges (Don't forget to select the inner edges too)
![Image](https://dotec3d.eu/images/tutorial/rim/21.png)
![Image](https://dotec3d.eu/images/tutorial/rim/22.png)
![Image](https://dotec3d.eu/images/tutorial/rim/23.png)
![Image](https://dotec3d.eu/images/tutorial/rim/24.png)
And you're done!
![Image](https://dotec3d.eu/images/tutorial/rim/25.png)