Week 9 - Attachment Feature Creation (Ribs & Screw Boss) - Challenge 1

Creation of solid model of Door handle by using Class A surface and also adding engineering features like ribs and screw boss to door handle and also to perform draft analysis on class A and final component.

Door handle:A Door Handle is built to detach the door latch to enable the door's opening.

Important terminologies:

1. Ribs: They are thin extensions that run perpendicular from a wall or plane. They are commonly used to provide additional support and strength to a part. Thickness and location are essential to rib design.
2. Screw boss: Bosses are projections designed to accept inserts, self-tapping screws, etc. for use in mounting, fastening or assembling parts.

1)Steps to be followed to create tooling axis:

• Initially, confirm the surface through which the tooling axis to be passed and extract the surface.
• Create a point on the surface and offset a plane on that point and make an intersection of class A surface using offseted plane.
• Make 2 lines about the 2 walls and make a bisector and the bisector itself is the tooling axis.

2)Steps to create class B surface:

• Offset the class A surface to distance of 2.5mm inwards .
• Make sure that there is no incomplete patches within the surface .

3)Steps to create class C surface:

• Create the boundary all along the edges of the class A surface.
• Using sweep command, create surface along the boundary along class A surface.

4)Initially, join the Class A and CLAss C surface and trim with Class B surface.

5)Changing to part design work bench, craeate the soild pf Door handle using its suface model.

6)Steps used to create ribs:

• Extract the surface , on which ribs to be designed and make a sketch on it.
• Extrude to appropriate height as per design rules.
• Thicken it as per design rules and provide draft angle of 0.5degree.
• Unitrim it to solid door handle and fillet the rib of 0.25mm radii.
• Reapeat the similar procedure to create the 2nd rib at distance more than 6mm.

7)Steps to create screw boss:

• Create a sketch on extracted surface on body and make a sketch of concentric circles as per design rules.
• Extrude it to a distance as per design rules.
• As per design rules, follow it.
• Add it to the main body.

8)Steps to do draft analysis on class A surface and final out product:

• ON the draft anlaysis and change the material mode.
• Place the coordinate system on the tooling axis.
• Select the component that needed to be analysed.
• Repeat the similar steps to perform the Draft analysis to class A surface.

9) Publish Tooling axis, Class A , Class B , Class C surfaces for ease of accesible.