Challenge

Week 9 - Project - A pillar Design with Master Section

AIM

To study the given master section and create the B side and a dog house on it.

REPORT

1. Creation of tooling axis

Check weather the given A surface is ok and without any patches using the boundary option or join option.
Once that is checked, study the master section given.

Select all the 4 vertical lines of the dog house master secton.
Using points created between two points options create a point in the middle of any two lines
Using bisecting line method, create a line passing through that point using two opposite facing lines.
Using the other opposite facing lines create another bisecting line through that point.
Now create a bisecting line bisecting these two lines which is our tooling axis.

2. Draft analysis on class A

Once the tooling axis is created, we run the draft analysis on A surface.
The compass is placed on the tooling axis and the analysis is run.
As you can see the surface clears the draft analysis proving that the tooling axis is correct.

3. Creation of B surface

4. Creation of C Surface

Use sweep command to create the C surface.
Select the class A surface, and using sweep command sweep the edges of the class A surface 90 degree and 3 degrees according to the design of the surface.
Join or trim all these multiple sweeps created to form a single C Surface.

5. Final join

6. Creation of closed surface component

Once the final join is done, go to part design and select closed surface option.
Select the trim.
The closed surface component is created as a part body

7. Creation of the Dog house

First create a plane on the inner walls of the dog house section using plane creation by through two lines option.
Create a sketch of the outer walls of the dog house by creating a rectangle around the dog house section and then coinciding the sketch with them.

Define the work in a new body and open part design workbench.
Pad the sketch to both sides by measuring the master section.
Shell the block on one side for 2.5mm.
Give a draft of .5 degree to the outer walls.
Then create a side core axis using an extract from the outer wall of the dog house and creating a line normal to that extract passing through the point.
Give draft of 0.5 degrees to the inner region of the dog house using the side core axis.
Give appropriate thickness to the dog house where it contacts the backside of the surface.
Doghouse wall thickness at the intersection of the part wall should be 40% or less than the main wall stock.
The height of that thickness should be between 3.0 – 6.0 mm
For that we extract the inner walls of the dog house using multiple extract.
We then extract the base of the final join surface.
We offset that to around 5mm in the upward direction.
We trim this with the multiple extract.
Cut the extra portion using line and split
Extrapolate the trim surface.
Then offset the extrapolated surface outise by 1mm.
Then we go the part design and use split to cut the padded body using this offset to get the thickness.
Apply draft of 0.5 degree to that surface using side core axis.
Then we create a sketch for the upper rib of the dog house following the same procedures as we did before.
Using profile line we draw lines emulating the rib design and then coincides them together to get the required shape.

8. Draft Analysis on the final body

RESULTS

1. ISOMETRIC VIEW

2. FRONT VIEW

3. SIDE VIEW

4. TOP VIEW

TREE STRUCTURE

Ship work like this
in your own course.