Exhaust Tutorial

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This tutorial is designed to walk the user through the steps in making an exhaust system out of bent parts in the Exhaust interface. For initial information on the Exhaust interface, see Exhaust Design

Things To Know

  • This tutorial is designed to walk the user through creating an exhaust system in the Exhaust Design interface. As you go through this tutorial, later procedures will assume that you understand all earlier procedures. Because of this, it is very important that you carefully step through this guide, understanding everything along the way and following all steps in order.
  • A few key items need to be addressed before starting the step-by-step instructions of this tutorial. It is very important for Bend-Tech users to completely understand these items:
1) Center Line & Apex
  • Center Line: In the Exhaust Design environment we are working exclusively with the center-line of a part, as compared to the inside or outside.
2) Locational Orientation
  • Designing in the Exhaust Design interface seems to work the best if users imagine they are standing underneath the vehicle at a 45 degree angle, looking upwards. This way left is left and right is right. Take a minute and examine the Tri-Star to get your orientation.
Notice how the vehicle in the picture is setup with the same orientation.

Orientation exh tristar1.png Orientation4 exhaust.png

3) Designing Parts
  • It is possible to create parts in the template and custom part interfaces, however, starting out this way tends to get confusing for new users of the software. It appears that there is a higher level of success with customers who start out designing parts directly in the assembly interface.

Start Up

1) Start by double clicking the "Bend-Tech 7x" icon to start up the program.Bend tech icon.png
Material Die3.png

2) Select the "Exhaust" icon Exhaust icon.png in the Task Menu under the "Create New" section to open the Exhaust interface. The window that opens should be labeled [Exhaust Design – 1].

3) For the purposes of this tutorial, click the "Maximize" button Min Max Close Tab.png at the top right of the Exhaust Design window.

4) For the purposes of this tutorial. The "Die & Material" tab is located in the upper left corner of the window. Select the "2.00 Material" and "4.0 Die" as seen here.

Changing the "Grid Spacing"

Exhaust grid3.png

1. Start by selecting the "Spacing:" value field and changing the value to "6".

  • This will give the user more control and accuracy when creating their lengths of pipes in the display area.

2. Also, select the "Width:" value field and change the number to "240" to make our grid a complete square.

Creating a Muffler

1. Select the "Muffler" Exhaust muffler1.png button and the "Add Muffler" window will open.

2. Select the "Next" Exhaust next1.png button.

Exhaust muff tut3.png

3. Type "10" in the "Width (A):" value field, "6" in the "Height (B):" value field, and "18" in the "Length (C):" field to create the overall dimensions of the part.

4. Select the "Next" Exhaust next1.png button.

5. Type "3" in the "Horizontal Offset (A):" value field, "3" in the "Vertical Offset (B):" value field, and "2" in the "Diameter (C):" field to create the inlet tube.

6. Select the "Next" Exhaust next1.png button.

7. Type "6" in the "Horizontal Offset (A):" value field, "3" in the "Vertical Offset (B):" value field, and "2" in the "Diameter (C):" field to create the outlet tube.

8. Select the "Next" Exhaust next1.png button.

9. Finish the part by saving it to the list of mufflers. Check the check box next to "Save this muffler for future use" and name it "Muffler 1".

10. Select the "OK" OK button1.png button.

Exh muff tristar2.png

11. Place the muffler near the center of the Tri-Star in the display area.

(Note: It really doesn't matter where the muffler is placed on the grid. The very next step will make sure that the following steps will all make sense. Additionally, rotate the part in the display area in order to look at the muffler from the side. This will help you avoid confusion in the upcoming steps.)

Creating a Section of Pipe

  • With the Grid Spacing at "6", you should notice that it's possible to place a length of pipe on any 6 inch increment of the grid. This insures accuracy of placement, but may seem tedious if you'd like to count in increments of feet, or yards. To avoid counting every inch of pipe that we'll need to use in this tutorial, leave the "Grid Spacing:" at "6" so we can move six inches at a time.

1. Select the "Set Base" Exhaust setbase1.png button and click the front end of the muffler in the display area so that the blue line appears to go straight through the inlet tube.

Exh muff2.png

2. Select the "New Section" Exhaust newsec1.png button and create a section that runs from the inlet tube exactly 1 foot along the blue line.

Exh muff3.png

3. Then, create a new section along the same line that is 36 inches (3 feet) long. This will be used to create an offset part.

Exh muff6.png

Creating an Offset Part

Exh addoffset10.png

1. Select the "Offset" Exhaust offset1.png button and click on the new part in the display area. The "Add Offset" window will open.

2. Select the "4 Bends" option and select the "Next" Exhaust next1.png button.

3. Type "18" in the "Distance to Center:" value field to set the offset halfway down the length of the part.

4. Select the "Next" Exhaust next1.png button.

5. Type "6" in the "Vertical Offset:" value field to create a 6 inch rise on the part.

6. Select the "Next" Exhaust next1.png button.

7. Type "8" in the "Top Width: A" value field and "24" in the "Bottom Width: B" value field to establish the size and location of the offset.

8. Select the "Next" Exhaust next1.png button.

9. Don't change the any of the dies that are going to be used for these bends as long as they are set at "4.0" as directed in the beginning of this tutorial.

10. Select the "Next" Exhaust next1.png button.

11. Name and save the offset specs to whatever you'd like.

12. Select the "OK" OK button1.png button on the last window and the outline for the offset part will appear in the display area.

  • "The offset is complete."

Exh partdefine2.png

Creating a Tail Pipe

  • These steps will also include creating an offset part, but by using 2 different methods. This first method will use the "Offset:" value field in the "Grid" section.

1. Start by setting the base from the inlet tube to the outlet tube of the muffler with the "Set Base" Exhaust setbase1.png button.

  • It should change to look like the picture below.

Exh muffoffset1.png

2. Once the base has been changed, create a new section that only extends "6" inches from the base of the muffler.

Exh muffoffset2.png

3. Then, start creating a new section starting at the end of the 6 inch pipe from the previous step. Before finishing the part though, change the "Grid Offset:" to "6" and then place the end of the pipe exactly 6 inches below and 6 inches left down the blue line as seen below.

Exh grid spacing4.png

Exh muffoffset5.png

4. Lastly, while still operating in the "New Section" function, select the end of the pipe and create one more "12'" inch length of pipe.

Exh muffoffset6.png

The part is now complete.

Exh muffoffset4.png

For further information on the Exhaust Designer, see Exhaust Tutorial II.