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

SWITCH BEZEL DESIGN

OBJECTIVE : Attachment feature creation (Ribs & Screwboss) with creation of class B and C surfaces using the given class A surface, creating tooling axis and performing draft analysis.

CREATING TOOLING AXIS

• Tooling axis is created using the bisecting method.
• Extracted the base flat surface of class A and created a reference point.
• Intersected the class A along the xy plane created and drawn 2 lines along the sloped faces.
• Then created a bisecting line for the 2 lines through the reference point and created the tooling axis.
• Published the tooling axis.

DRAFT ANALYSIS ON CLASS A SURFACE

• Changed the view mode to Material mode.
• Insert>Analysis>Feature draft analysis
• Activated the compass and then by dragging the red point, placed the compass along the tooling axis and locked it.
• Clicked on the part and analysed the draft angle of component.
• Considered the min. draft angle as 3 degree.
• The green colour area shows that the component satisfies the given draft angle.

CREATING CLASS B SURFACE

• To create class B surface, the whole class A surface is offseted by 2.5 mm.
• A surface patch was missing, so i used the Multi section surface command to fix it.
• Then I extrapolated the whole class B to a small value.

CREATING CLASS C SURFACE

• Using the Boundary, Sweep, Multi section surface commands class C surface is created as different patches.
• Extrapolated the edges to meet the gaps and trimmed to create a single class C surface.
• Joined class A and C together.
• Then trimmed the join with the class B surface.
• Finally, under the partbody used the close surface to make the component solid.

CREATING RIBS

• Ribs are created based on the design rules.
• All the dimensions are taken according to the design considerations.
• Positioned sketches are created and then padded the sketches accordingly.
• After providing the draft, used the boolean operation to add it to main body.
• Then fillets were given.

CREATING SCREW BOSS

• According to the design considerations given, basic sketches are created.
• Padded the sketch and then draft is provided.
• Using the boolean operation added the screw boss to the main body.
• Fillets were given.
• Using the traslate command created the second screw boss.

DRAFT ANALYSIS ON FINAL SOLID COMPONENT

• Final draft analysis is performed just like the steps explained in the draft analysis of class A surface.