Week 8 - Challenge 1 - Base Bracket Design

AIM: Create a base bracket platic component through the given Class - A surface. To begin with, the tooling axis for the given Class - A surface should be created meeting the requirements of the draft angle and at the end perform the draft analysis on the model.

REPORT ON DRAFT ANALYSIS:

Given Class - A Surface:

• Check the continuity of the Class - A Surface

Ensure that there is no gap between the Class - A Surface by simply using the Join command, or we can always use the boundary command also & there is only three boundaries one outer boundary and two inner circle's.

• Find the tooling axis for the component

The tooling axis is nothing but axis where the mold or cavity will opens. Check visually which is the best tooling axis, check all the three axis:

Along X axis it is possible but the manufacturing cost will increase

Along Y axis it's not possible to manufacture

And Z axis is the best tooling axis for this class - A surface

• Creating a Tooling axis along Z axis:

So, the main tooling axis is along Z axis, Now perform the Draft Analysis tool in the tools. Then after opening the draft analysis tool box go for the Compass to define the new current draft direction and place the compass alinged to tooling axis and click on the symbol after aligning and further click on the surface.

• Now creating Class B Surface:

Initially extracting the right side of the rib using extract option from Class A surface.

Then perform Extrapolate in order to increase the length

Now trim the surfaces to required surfaces

Then Offset the surface in order to get the required thickness

Now similarly follow the same steps for the left side rib also

And now get the slanted as well as the flat surface and offset it to desired value

And then trim it to required surface

Now fillet the surface to required amount

Now Creating Class C Surface:

EXPLANATION ON BISECTING METHOD:

Bisecting method is basically use to find the proper tooling axis using the dummy tooling axis. In Bisecting method, bisecting line is used which either bisect the two line or it will show error which means the two lines are parallel to each other. In order to know whether the particular surface is toolable or not we intersect the surface with the help of bisecting line option we bisect the line which creates a line at the mid point of the two lines. Like wise we create tooling clearing axis for x and y which will be used to create the main tooling axis using the bisecting line option in in the line command.