Week 9 - Challenge 1 - Base Bracket Design

BASE BRACKET

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.

GIVEN DATA:

Fig.1 Class A surface

STEP 1: Check the connectivity of the Class A Surface

STEP 2: Find the tooling axis of the component. The tooling axis is nothing but the mould opens or cavity opens. Along X is possible but expensive and Y is not possible. Z is the best possible tooling axis.

TOOLING AXIS:

Fig.2 Tooling Axis

Methodology:

· Create tooling axis along Z direction.

· Creating extract from the class A surface and UNTRIM the extracted surface to create the desired surface.

· And EXTRAPOLATE the UNTRIMED surface for getting additional surface to create the closed surface.

· TRIM the EXTRAPOLATED Surface for getting desired shape of the EXTRACTED surface.

· Create boundary in the given Class A surface for performing the SWEEP operation to create the Class C surface.

· JOIN the class A & class C surface together.

· TRIM the JOINED surface for create the Class C surface.

· TRIM the Class C surface and Class B surface to get the final output.

Fig.4.1 Rib

Fig.4.2 Trimmed surface

Fig.4.3 Class A&C Surface

Fig.4.4 Final Trimmed surface

Fig.4.5 Closed surface

DRAFT ANALYSIS:

The Draft analysis is the way of finding the component whether it is producible or not in the production stage. The recommended draft angle is 3 degrees.

Fig.3.1 Draft analysis (close surface)

Fig.3.2 Draft analysis (Class B surface)

Fig.3.3 Draft analysis (Class A&C Surface)

CONCLUSION:

The given Class A surface has been created as a closed surface and the draft analysis has been performed for whether the created product is producible or not.

The draft angle to the product is about 3 degree.