Challenge

Week 9 - Challenge 1 - Base Bracket Design

BASE BRACKET DESIGN

Aim;

Design a base bracket plastic component through the given class-A surface.

Design procedure;

Creating a tooling axis in class-A surface

Creating a tooling axis in class-A surface;

The direction in which the mould open and closes is the tooling axis.
check the connectivity of the surface and ensure there will be no gap between the surface and then define the tooling axis.
while creating a tooling axis give the tooling axis on a flat length surface or the surface which have a hole on it.
create a point on the surface where we are going to create the dummy tooling axis and using the command create an axis. if there is a circle or flat length surface which is recommended.

Draft analysis;

The draft analysis technique is used to analyse whether our part model created in CAD is manufacturable based on the draft condition applied.
Minimum draft angle is considered as 3 degree.
Step 1= enter part in catia.
Step 2= go to material mood.
Step 3= go for draft analysis.
Step 4= drag axis bar to the tooling direction of part.
Step 5= check for draft and make parting line as per analysis.

Class B-surface;

Class B surface are the secondary surfaces in plastic component design
In this model class B surface is extracted from the class A surface and it is Offsetted at 2.5mm is downward direction.
To create the class B surface, I considered the entire surface has 3 parts. Rib-1, Rib-2 and base surface.

Class C-surface;

Class C is often specified for interior surfaces not readly visible, surfaces that will be covered by another part when assembled or surfaces which the customer feels do not need to meet a high cosmetic finish.
C-surface connects the class A-surface and class B-surface.it is created using sweep command. Boundry of the class A-surfaceis swept along the tooling direction.

Final output;

Final part draft analysis;

Ship work like this
in your own course.