Week 8 - 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.

REPORT ON DRAFT ANALYSIS:

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

STEP 2: Find the tooling axis of the component. The tooling axis is nothing but the mould opens or cavity opens.
Check visaully which is the best possible tooling axis.
Check all three axis.
Along x it possible but expensive and y is not possible.
z is the best possible tooling axis.

Creating a Tooling axis along z:

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

Here, Line shown in dotted green is our tooling axis.

Creation of Class B:

Now for Class B creation, we have extracted surface from Class A and untrimmed them to obtain the original parent surface.

These surfaces are then offset to the required thickness.

After offsetting, all the surfaces are trimmed into the required shape

Required fillets are given to the surfaces.

Draft Analysis on the Final Component:

For this analysis, main tooling axis is taken draft reference.

Following results were obtained:

Final Trims:

Class A & Class C:

To make sure that there is not any open boundary between class A and class C, we have used join option to created the single body. This is done to make sure that the parting line doesn't lie between the these two surfaces.