Week 8 - Challenge 3 - Coin Holder Design
AIM:
- To create the center console coin holder plastic component through the given class a surface and at the end performing the draft analysis on the model.
OBJECTIVE:
- To ensure proper tree structure is followed.
- Geometrical sets should have a proper name based on the sketches present inside of it.
- All the sketches should be created under the geometrical set.
- Use of the close surface feature to make a solid body from the surface.
- To publish the tooling axis, class A, B and C surface.
Tooling Axis:
The tooling axis is a direction along which the core and cavity tends to move. Here the tooling axis is created in direction, which is normal to one of the Flat surface of the Coin Holder.

CLASS B SURFACE:
- Consider the thickness of the component as 2.5mm. Now we need to create a B surface which will be similar to the A surface at an offset value of 2.5mm.
- In this operation we are creating A class B surface in 4 different geometrical sets.
- First, we are creating a side wall. To create this surface, we need to extract the class A surface as shown in below in below figure.
- Once the surface is extracted , untrim it and then extrapolate it by a required value on each side using point continuity. Trim them to form proper walls. Now offset it by 2.5mm.

- Similarly, we need to extract the base, top wall and outer flange surface of the center console coin holder in different geometrical sets and perform similar operations on it as mentioned above.
- Once all the surface are created trim these surface to form a class B surface. Give the appropriate fillets to form class B surface.
CLASS C SURFACE:
- To create a class C surface, first extract the boundaries of the class A surface and extract the adjacent surfaces to the boundary as shown in the figure below.

TRIM SURFACE:
- After creation of class A, class B and class C surfaces, we need to trim class B and class C surface to form a new surface. Then join the trimmed surface with class A surface to form the final required surface.
- Now using the close surface option from part workbench form a solid body from surface body.

Quick Views( Front , Side , Top , Isometric Views )-

Draft Analysis -
- Using the analysis option, we can perform the draft analysis on class A surface and final body of center console coin holder.


CONCLUSION:
-
Center console coin holder plastic component using class A surface have been successfully created and draft analysis have also been performed for the same.