Week 9 - Challenge 1 - Base Bracket Design

Week 9 - Challenge 1 - Base Bracket Design

AIM: Create the Base Bracket Plastic 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.

Creating B-Surface & C-Surace

REPORT ON DRAFT ANALYSIS:

Given Class-A Surface

STEP 1: Check the connectivity of the Class A Surface
Ensure that there is no gap between the component, using the join command.
We can visually check it or by clicking the boundary command.
It has 3 boundaries one outer and two inner circle boundaries.
Therefore first check was completed.

STEP 2: Find the tooling axis of the component. The tooling axis is nothing but the mold opens or the cavity opens.
Check visually which is the best possible tooling axis.
Check all three axis.
Along X direction it is possible but expensive and Y direction it is not possible.
Z direction is the best possible tooling axis.

Creating a Tooling axis along Z:

Therefore the main tooling axis is along the z-axis.
Now perform the Draft analysis using the Featured Draft Analysis tool in the tools.
Then after opening the draft analysis toolbox go for the compass and place the compass aligned to the tooling axis and click on the lock symbol after aligning and further click on the surface.

EXPLANATION OF BISECTING METHOD:
Bisecting method is used to find the proper tooling axis using the dummy tooling axis. In Bisecting method, the bisecting line is used which either bisects the two lines or it will show an error which means the two lines are parallel to each other. To know whether the particular surface is tolerable or not we intersect the surface with the respective plane and get a sketch that consists of two lines with the help of bisecting line option we bisect the line which creates a line at the midpoint of the two lines. Likewise, we create a tooling clearing axis for x and y which will be used to create the main tooling axis using the bisecting line option in the line command.

Tooling Axis

Draft Analysis on Class-A Surface

 Now creating Class B Surface:

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

Then perform Extrapolate in order to increase the length

Now trim the surfaces to the required surfaces

Then Offset the surface in order to get the required thickness

Similarly, create the left-side rib

Now Similarly get the slanted as well as the flat surface and offset it to the desired value

And now trim in order to get the required surface

Now fillet the surface to the required amount

Creating Class-C Surface

Draft analysis on part

Isometric view

Front view

Top view

Side view