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

Tooling Axis

It is defined to make sure that all the surfaces maintained a minimum draft angle with drafting direction so that the process can be smoothly carried out.

1. A point is made along the flat surface and a new axis system is created.
2. A dummy tooling axis is made based on the visual inspection
3. The model then intersected with multiple planes to make intersection sketches.
4. The sketches are inspected and lines are created along the direction with minimum draft angles, these lines are bisected to give the final draft angle.

 

Rib Calculation

Determining height with height-to-width ratio.

The maximum width of the rib is: 1.2 mm

The minimum width of the rib is: 1.06 mm

The minimum Draft Angle is:0.5 deg

The final Height of the Rib is: 9.56 mm

The final rib root diameter is: 3.188 mm

Height to diameter ratio is: 3:1

The thickness of the model is: 3mm

Boss Analysis

Heignt to diameater ratio is : 3:1

The boss diameter is : 3mm

Height of the boss screw is : 9mm

RIB & Boss Screw

Draft Analysis

The draft analysis is conducted to make sure that every surface has a minimum draft angle with the tooling direction.

• The draft direction is selected and the view is changed to material mode.
• The surface to be drafted is selected, and all the draft angles are visually analyzed with the help of color code. If there is any problem the draft direction is tilted or moved accordingly.

Class A Surface

 

Solid Model With Ribes

 

Standard Views

Front View

Side View

Top View

Isometric View