Week 8 - Challenge 1 - Base Bracket Design

MAIN OBJECTIVE :

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.

CAT PART :

BASE BRACKET

• THE TREE STRUCTURE HAS BEEN GIVEN IN THE ABOVE PICTURE.

EXPLANATION :

The class A of a cat part was given as the input. The following steps i have followed to find the tooling axis.

• I have created point in the center hole using center point in the circle option in the point command.
• After that i have created a dummy tooling axis using Z direction with with point to direction option.
• I took a plane with referance to the center point and used an intersection command to intersect the line of the class A.
• After the intersection line i took the critical faces which may intervene with tooling. And draw 2 lines from vertex at 45 degreee with refernce to the dummy axis.
• I have a created the original axis using the 45 degree lines using line to bisect command.
• After that i did a draft analysis using compass to check the draft was 3 deg or not and not popping up any deflection.

CREATING CLASS B AND CLASS C :

After draft analysis creating a new geometrical set and performing this below operations.

• In surface work bench selecting the faces of the two RIB's and performing (EXTRACT,UN-TRIM,EXTRAPOLATE) operations on the faces and acquire the outputs and offset them to 3.5.
• The same goes with the base and under base after getting a complete faces use TRIM command to get the acquire the surface after performing those give finishing touch with the edge fillet with 3+2.5 mm radius to get the final class B surface.
• Introduce a new geometrical set named CLASS C and select a boundry of CLASS A using boundary command and the 2 holes on the surface.
• After select those boundary and introduce sweep command to extrude the face upto 10 mm. And use join command to join the class A with class c.
• Use final trim to chop off the extruded part of sweep with class B face to get the final CLASS C surface (COMBINING OF CLASS A AND CLASS B).

FINAL CAT PART :

Jump into the part workbench and define in partbody and select closed surface of the class C and make it a complete solid to complete the task.

NOTE : The following catpart was given below.