Hello CATIA 3DExperience Fans,

Here is my last tutorial Design Fast #4 edition!

You will learn how to design a pipe between 2 parts in Assembly Design.

1 part is fixed and can be manually moved. The pipe will automatically follow the new position and update the curve between the 2 parts.

Step 1: Assembly and Parts Preparation
Create a Physical Product (assembly)

Insert a new Part called “Socket Fix”

In part Design, Sketch a circular socket Ø40mm

Use the feature Shaft to make a cylindrical socket

Add a geometrical set in the part

Create a point in the center of the cylinder

Create a line from the point and the direction of the cylinder

Insert a new Part Called “Socket Move”

Repeat the same step as the previous part

Go back to assembly application

Use the engineering connection and Fix the “Socket Fix”

Use the robot to move the “Socket Move” in 3D

Step 2: Create a flexible pipe
Insert a new 3D Part in the assembly

Call it “Flexible Pipe”

Switch to Generative Shape Design

Insert a geometrical set in the part

Create a spline between the 2 points using the lines as support

change the connection to Curvature continuity

The link should be kept between the 3 parts

Now you have a 3D Curve

Use the sweep feature with the option Radius and center

Select the 3d curve and put a Ø40mm

The surface is created

Step 3: Transform a Surface into a Solid
The pipe surface is created in the geometrical set

now define in work object the body and switch to Part Design

Click on the feature Thick Surface

Select the pipe surface created

put 2mm thickness

The pipe is now a solid

Step 4: Move the socket and update the Assembly
It is time to go back to assembly design

Use the robot to move in 3D the “Socket Move”

the pipe will become red

Use the update button

the pipe is updated and it will follow the direction of the new socket

[ Be careful, if the curve is too curvy, you will have singularity in your design and the pipe will not be created ]

Watch and Learn 🙂

If you want to see more of Design Fast Video look at our Playlist on YouTube: https://www.youtube.com/playlist?list=PLmp6SPutyGtMvIgoQMkMgo9u9xxoAs43e

And find the model on this GrabCad link:  https://grabcad.com/library/flexible-pipe-3