Week 10 - Challenge 1- Attachment Feature Creation (Ribs & Screw Boss)

FINAL PART

DIFFERENT VIEWS OF CLOSED BODY

IOSMETERIC VIEW

FRONT VIEW

SIDE VIEW

TOP VIEW

TREE STRUCTURE

REPORT:

From the given Class A surface, draft analysis was performed.

Since we have a flat surface,tooling axis was made normal to it and theortically it should clear the draft analysis. But due to problems with the class A,the draft analysis with 3 degree was not cleared. Some surface were of only 1 degree draft angle. The issue can be seen in the above picture. Further Class B and Class C were made made combined to form the closed surface. In part workbench,using the closed surface tool,solid body of door handle was created, and the draft analysis were checked.

Further, for ribs all design rules, except the distance between the two ribs was followed.On calculation, if we follow 2:1 ratio between height and space between, we get 7.5mm as the space. But with this we cannot make the screw bosses in between. The reference images also validates this observation.

Hence a convienient distance was taken.The height of the ribs are 15mm which is 5 times the the thickness 3mm of the cross-section, thickness of rib was 1.2mm which is 0.4 times the body thickness and the draft angle of 0.5 degrees. For screw boss design, all design rules were followed.

The inner hole was made of 5.2mm diameter, assuming an M6 screw; height 15mm and draft angle of 0.5 degrees. Finally each sharp edge was filleted with 0.25mm radius.