Base Bracket Design using Catia V5

Aim: To create a Base Bracket design with the help of a Class A surface with a tooling axis by performing draft analysis.

Introduction:

1. Class A surface: A surface that is given to the plastic modeler which is of aesthetic and outermost surface. The surface made by the designer is known as a Class A surface.
2. Class B surface: A surface that is below the Class A surface, at a certain thickness, which contains engineering aspects on it is known as Class B surface.
   
   
3. Class C surface: A surface that joins the Class A and Class B surface is known as a Class C surface.

Procedure:

1. Creating a tooling axis
   
   
2. Performing draft analysis
   
   
3. Creating a Class B surface
   
   
4. Creating a Class C surface
   
   
5. Creating a solid model

Step1: Creating a tooling axis:

Initially observe the class A surface and check whether the model contains any discontinuity and check joined properly or not. Check the model in all directions. Since there is only one possibility, we can go with the top plane and create an axis.

Creating an intersection at the required position. Creating a dummy tooling axis. Create two lines at the required intersection and bisect a new line with the previous two lines. Therefore we get a

Extracting the surfaces due to fillets are present and offsetting them for a 2.5mm.

Offsetting the base surface.

After all the offsets, trimming and applying fillets are done for the required shape. Hence the class B surface is done.

Extracting the outer boundary and joining with the class B surface. Therefore the Class C surface is formed.

Trimming all the unwanted surfaces and maintain the model without any gaps.

Applying the draft analysis on the class A surface.

Converting the obtained surface model into the solid model.

All views of the component: