Week 8 - Challenge 3 - Coin Holder Design

Report -

Drafte analysis of given plastic component -

Draft analysis is important here to check the feasibility of manufacturing the component. A safe draft angle of 3 degrees is provided so that the surface of the component upon shrinking does not stick to the core surface. Upon cooling within few seconds, it is the tendency of the plastic moulded component to shrink towards the core surface. This can cause diffculty to remove the final component or can even damage the surface of the component and core.

Here are the images of draft analysis done of Class A surface and the final solid component -

Draft analysis of the part body -

Here, the colour scale cariant along with draft analysis results are given. Green colour according to th colour scale variant is greater than 2 degree. The draft angle given in this case is 3 degrees. Hence the component upon cooling wont stick to the core surface and can easily be separated from the core.

Draft analysis is purely dependent on the tooling axis. Choosing the direction for tooling axis is done using the check in all the three directions. In this case the direction in which majority of surface characteristics are visible is chosen as the direction for tooling axis. It is then created using bisecting lines method.

Ways of vreating he tooling axis -

Here the tooling axis is taken normal to the extracted base surface because the adjacent walls of the body are normal without any draft.

Isometric view -

Front view -

Side view -

Top view -