1. Create and move a box

The first thing you need to do is create a box to represent the fuel tank. Create the box using the following dimensions.

Move the box to the following location

2. Chamfer and edge move

For the FuelTank we need to chamfer the outside upper edges and move the inner edge in towards the center . Convert the box to editable mesh and select the outer front edges and type 0.05 into the chamfer box. Select the newly created right inner edge and move it in towards the UnderbodySupport. Type in -0.5 into the "X" co-ordinates for the right side and 0.5 for the left side. Now we can create the radius edges on the underside. Select both outer lower edges and type 0.15 into the chamfer box. While the edges are still selected type 0.05 into the chamfer. If you want an extra smooth appearance, with the edges still selected type 0.022 into the chamfer box. Before continuing on we need to remove the polygons from the top. Select the "Polygon sub-object and select the top polygons and delete them.

Figure 1 Result after first chamfer and edge move

Figure 2 Result after second edge chamfer

3. Filler tube

To create a simple filler tube we need to create a cylinder and move/rotate it into location. Create a cylinder with the following dimensions.2.625

Now rotate the tube to 110 degrees in the "Y" axis and move it to the following location

Convert the tube to an editable mesh and delete the polygons on the end inside the tank. Open the "Material Editor" and add the Misc_01 texture to the FillerTube and add an "Unwrap UVW" modifier to the stack. Now we can mirror the FillerTube to the other three corners. Make sure the FillerTube1 is selected and select the mirror tool. Type -3.6 into the Offset box, change the "Mirror Axis" to "Y" and ensure the "Copy" checkbox is selected and click on "OK". Now select both the filler tubes and again click on the "Mirror" tool. This time change the distance to 2.625 and the "Offset Axis" to "X".

Figure 3 Result after mirror

Figure 4 First mirror settings

Figure 5 Second mirror settings

4. Creating the Air Tanks (Air Receivers)

The items we need to create are a cylinder and a sphere. Use the following specifications for each

Now that we have a cylinder and a sphere we need to convert both to an editable mesh and using the polygon sub-object remove the polygons from each end of the cylinder and split the sphere in half by selecting the top half of the polygons and seleceting "Detach" from the"Edit Geometry" roll-out. One you have done the meshes edited we need to move the two halves of the sphere in to location at each end of the cylinder. Use the "Osnap" selection box to select and move each half. Once you have the sphere halves in location select the cylinder and attach the sphere halves. Do not attach the cylinder to the sphere halves. Now select and rename the mesh "AirReceiver1" and then using the "Rotate" tool rotate the AirReceiver 90 degrees in the "X" axis. Once you have that done move the AirReceiver1 to the following location

This should place the AirReceiver1 approximately in the center of the FuelTank lengthwise and approximately central between the FuelTank and the MainBase

Figure 6 Sphere end polygons selected

Figure 7 Detach tool

Figure 8 Cylinder polygons selected for deletion

Figure 9 Sphere halves in location

Figure 10 AirReceiver in location

5. Texturing the FuelTank

Open up the "Material Editor" and drag the Main_01 texture onto the FuelTank1. Add an "Unwrap UVW" modifier to the stack of the FuelTank1 and use the "Select Face" sub-object to select the entire right side including the radius edge. Click on the "Planar Map" button and map the texture to the labeled section of the texture. Repeat the process for the other side and then continue with the rest of the FuelTank1. The texture mapping end result should be similar to figure 12

6. Texturing the Air Receiver

Open up the "Material Editor" and drag the Main_01 texture onto the AirReceiver1. Add an "Unwrap UVW" modifier to the stack of the AirReceiver1 and use the "Select Faces" sub-object to select the entire object. Click on the "Planar Map" button. Now that we have a flat shape in the "Edit UVW's window we need to rotate it 90 degrees using the "Rotate + 90" tool. Resize the map to fit the Air Receiver texture. Once you have done this deselect the "Select Faces" sub-object and you will notice that the lettering on the AirReceiver is reversed. To correct this we need to flip the texture in the horizontal plane. Go to the "Tools" menu in the "Edit UVW's" window and select "Flip Horizontal" from the menu and you will notice that the text is now reading correctly.

Figure 13 Rotate tool

Figure 14 Texture mapping located correctly

Figure 15 Flip horizontal

Sometimes it is usefully to have the air receivers mapped to separate textures however for this tutorial there is no real need.

The size of the fuel tank textures are kept large as this is a very visible part of the locomotive and the large portion of the texture allows for weathering effects.

You have now successfully created and textured the Fuel Tank and the Air Receivers for a locomotive.

Chapter 9

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