Week 8 - Challenge 2 - Base Bracket Design

AIM:-

To create the Base Bracket Plastic component through the given Class-A surface with creating the tooling axis for the given Class-A Surface meeting the draft angle requirements and perform the Draft analysis on the model.

TOOLS USED:-

Boundary, untrim, multiple extract, bisecting line, draft analysis, intersect, sweep, close body surface.

PROCEDURE:-

• Creating tooling axis:-

1. Open the given CAT part file.
2. Check for gaps between surfaces for that click on join and then preview.
3. Extract the boundary and then dissemble the boundary.
4. Find the correct tooling axis where the material doesn't interfere with the tooling axis and all the elements can be created.
5. Create an axis system using the centre of the fan cover.
6. Intersect the YZ plane with respect t the Class-A Surface.
7. Hide the Class-A Surface and create point-to-point lines on the suspended drafts.
8. Create a bisecting line with the two lines and point to create a tooling axis.
9. The tooling axis is created for the component.

• Publication:-

1. Publication is done to the component to make it visible and navigate easily.
2. To publish the component got to TOOLS-->PUBLICATIONS and then select the tooling axis and the Class-A Surface.
3. A separate tree structure is formed under the main part.

• Draft Analysis:-

1. Before going to draft analysis go to customized view parameter, under MESH, check MATERIAL, and then click OK.
2. Now for draft analysis go to INSERT-->ANALYSIS-->FEATURE DRAFT ANALYSIS.
3. Use the compass to define the draft direction.
4. In the colour scale change the draft angle to 3 degrees.
5. The component changes to green in an indication of passing draft angle.
6. Use running point to check the angle on the component.
7. The draft analysis is complete.

• Creation of Class-B Surface:-

1. Extract the surfaces from the Class-A using multiple extract and untrim them.
2. Use extrapolate to make sure that all the untrims are properly intersected to trim and offset the surfaces to 2.5mm to create the thickness.
3. Trim the extra surfaces using the trim command.
4. Insert them into a new geometrical set and name it with respective part names.
5. Apply fillets to the model after creating the entire surface.
6. If the fillets are outside the fillet value will be added to the thickness of the component, for instance, the thickness of the component is 2.5mm the fillet value is 3mm so the outside portion value should be 5.5mm to get a uniform thickness.