Week 8 - Challenge 3 - Switch Bezel Design

AIM: To create the switch bezel plasctic component using the given class A surface.

OBJECTIVE:

1. To create a tooling axis and perform draft analysis on the given class A surface.
2. To create a class B surface.
3. To create a class C surface.
4. To join all the three surfaces to each other and create a closed surface.
5. To create a 3D part model from the surface model and perform draft analysis.

CLASS A SURFACE

A tooling axis is created with the help of bisecting lines and a draft analysis is performed on class A surface.

Fig 1: Class A surface

Fig 2: Class A surface with tooling axis

Fig 3: Surface A draft analysis

CLASS B SURFACE

Class B surface is the engineering surface on which features like boss, ribs are provided. It is formed by offsetting the class A surface by a distance equal to the thickness of the product.

Fig 4: Class B surface

CLASS C SURFACE

Class C surface joins class A surface and class B surface.

Fig 5: Class C surface along with class A surface

Fig 6: Surface model of switch bezel

Fig 7: Part model of switch bezel

Fig 8: Draft analysis of part model

It can be seen from figure 8 that for the given tooling direction draft is above 3 degrees.

Fig 9: Draft analysis of part model in different orientations

CONCLUSION

Hence a switch bezel plastic component is created with the help of class A surface provided. A draft analysis is performed as shown in figure 8 and 9, which shows that for the given tooling direction the components draft is above 3 degrees which is the acceptable limit.