Challenge

Week 8 - Challenge 1 - Base Bracket Design

AIM

Create the Base Bracket Plastic component through the given Class-A surface.

REPORT

Given Class A surface :

1. Report on Creation of tooling axis

Using join or boundary commands check the connectivity of the given Class A surface
Visually inspect the best possible direction for tooling axis. In this case we select Z-axis as our tooling direction.
We now look for the best position for the tooling axis to pass through. In the Class A surface we can see two holes. We select the bigger hole which is near to the center of the surface for the tooling axis.
Now using the point command we create a point in the center of the hole.
Using the line command we create a dummy tooling axis along the z axis direction passing through the point we created earlier
Now we create a plane with yz plane as the reference at the above point.
Now we use the intersection command to create an intersection between the class A surface and the newly created plane.

Now we use the bisecting line method for the creation of tooling axis.
We draw two lines on two surfaces on their vertices using the line command point to point option.
Then we again open the line command and click on the bisecting lines option and select the point.
A new line is formed along z axis which is the new tooling axis.

2. Draft Analysis on Class A Surface

3. Creating Class B Surface

Firstly extract the right side rib of Class A surface using extract command.
Then using untrim command untrin all the extracted surfaces.
Then using the extrapolate command extrapolate the untrimmed surfaces inorder to increase the length.
Now trim the surfaces to form the required surface.
Then using Offset command offset the surface to 2.5mm inorder to get the required thickness.
Similary extract the left side rib and repeat the same steps.
Now Similarly do the same steps for the slanted as well as the flat surface and offset it to 2.5mm.
And now trim everything inorder to get the required surface
Now fillet the surface to required amount, we get the Class B Surface.

4. Creation of Class C Surface

Use the boundary command to identify and select all of the boundaries of the Class A Surface.
Use the sweep command. Select the line option. Select 'with draft direction'. Click on the first boundary and select the tooling axis and set the angle to 3 deg. Then finally select the direction.
Once sweep is applied to all the boundaries click on join option and join them all. Thats your C surface

5. Creation of Final Trim

Once Class B and Class C are created, use the trim command to join them as required.

6. Creation of Closed surface

Once the final trim is created, open the part window and define the work on part body.
Click on closed surface option and click on the final trim.
The New body is created.

7. Draft Analysis on Closed surface

Just as draft analysis was done on A surface, we do draft analysis on the closed surface.

RESULTS

1. Isometric view

2. Front view

3. Side view

4. Top view

Ship work like this
in your own course.