Week 8 - Challenge 1 - Base Bracket Design

OBJECTIVE

To explaining the creation of tooling axis by bisecting method and draft analysis.

INTRODUCTION

Tooling axis is an axis which is the axis along which the whole part come out from the mould which is molding in core and cavity arrangement.

Tooling direction: It is the main focus for part because it defines the movement of the mould part and the chance of plastic part coming out from the core and cavity setup.

In other words, the mould is built from two separate halves (core and cavity) and tooling direction is basically defines the direction of mould pulls out. Tooling direction is also known as primary direction.

Creation of Tooling Axis:

• First of all, import the Class A surface in surface work bench and check for any irregularity or discontinuity by boundary icon.
• If there are any irregularity, correct it and after it analysis the Class A surface for Tooling Direction.
• Here the tooling direction is along Z axis which is focused on the circle.
• A centre point is drawn on circle and an axis system is inserted on that point.
• After this an intersection is drawn on Class A surface along YZ plane.
• Then draw two line using point to point option as shown in below picture.

• After this made a bisecting line using these two lines and the centre point. This bisecting line is called the Tooling axis.

Draft analysis:

Draft analysis command is generally enables us to detect that the part can easily remove at certain angle. This analysis of the draft angle is shows colours for different ranges of angle where the deviation from draft direction at any point corresponds to specified values.

For drafting analysis,

• First we click on insert after that go for analysis and then feature draft analysis icon.
• After that click on compass and pick the axis tree and put it on the Tooling Axis and lock it.
• Then click on colour scale and feed the angle range for the particular colour.

Below the picture showing the Draft analysis of the Class A surface and the Solid part.

Class A surface:

Solid part:

Isometric view:

Front view:

Side view:

Top view: