Week 11 - Project - A pillar Design with Master Section

Draft Analysis of Master section.

Before creating the solid and incorporating B-side features, we conduct a draft analysis check specifically for the class A surface. The process begins by aligning the compass with the tooling axis and setting a 3-degree draft angle for the green color on the color bar. If the surface is entirely highlighted in green, it indicates that the draft angle has been correctly applied to the class A surface. However, if the class A surface is not fully highlighted in green, it suggests that the draft angle for that surface may be the issue.

Desgine verification from Various Orientation.

TOOLING AXIS AND  SIDE CORE AXIS:

The tooling axis refers to the opening direction of a mold's core or cavity. It plays a crucial role in determining the component's orientation during mold, core, and cavity design, as well as in conducting draft analysis for the component.

CLASS B SURFACE:

The component has a thickness of 2.5mm. Our objective is to generate a B surface that closely resembles the A surface but offset by 2.5mm. However, during the offsetting process, certain irregularities occurred, resulting in discontinuities. To resolve this, I utilized a combination of extract, extrapolate, trim, and fill surface commands and tools to repair the surface and ensure a closed boundary.

C SURFACE:

To create the C surface, I utilized the A-Surface as a reference and employed two separate commands: Sweep (with a reference surface) and Boundary. These commands were used independently to generate different portions of the C surface. Once both portions were created, they were joined together to obtain the final C surface.

DOG HOUSE

A dog house is an important engineering feature utilized in plastic design to provide support. It serves as a base for mounting various engineering components such as snaps, locators, and screw bosses, thereby enhancing their strength.

To ensure the durability of the component during ejection from the mold cavity, dog houses undergo draft analysis. These engineering features, including the dog house, are constructed on the B-surface.

The design of dog houses aims to prevent sink marks on the Class-A surface caused by screw bosses, as well as address length issues when incorporating screw bosses that need to be assembled to other components. When perpendicular screw bosses are required in relation to the tooling direction, a specific process is followed:

1. Create a rectangular shape that encloses the screw boss, ensuring it remains open on one side.
2. Apply a sweep operation, pulling inward along the tooling axis.
3. Close the top face of the shape using a multi-section surface.
4. Thicken the shape outward by 2.5 mm.

Detailed tree structure.