Week 10 - Challenge 3 - Door Trim Lower with Engineering Features

TOOLING AXIS:

To create the tooling axis, I extracted a surface from class A and created a point in the middle of the surface by using the point command and created a line at that point through the x-axis. Now, I performed a draft analysis check from that line whether the created tooling axis is in the correct position or not. If in the draft, analysis check the surface highlighted with green colour on both sides of the surface the tooling axis is in the correct position and direction. 

DRAFT ANALYSIS FOR CLASS A SURFACE:

We do perform the draft analysis check for class A surface before we make solid and creation of B-side features. Initially I align the compass to the tooling axis and I gave a 3deg draft angle for the green colour in the colour bar.

CLASS B SURFACE:

To create the class B surface, offset the class A surface inside as per our thickness requirement (here the thickness is 2.5mm, so I offset the class A to 2.5mm inside). Once the offset is created, we can observe some patches on the offset surface by taking the boundary for the offset surface, those patches are formed due to the fillets on the class A surface. We need to cover those patches with the help of the multi-section surfaces command by extracting the patch boundaries. Once all the patches on the offset are covered properly join all the patches with the offset surface, to get the replicated surface of the class A surface. 

CLASS C SURFACE:

I used the sweep command to create the class C surface concerning the boundary of the class A surface. Initially, I extracted the boundary of the class A surface with tangent continuity, and I sweep the extracted boundary.

Closed surface 

Join class A and Class C.

And Trim the Joined class A and C with Class B extrapolate if needed

Closed body 

Select start, Mechanical Design, Part design 

Define the Part body and select closed surface 

CREATION OF LOCATORS:

To create the locators, I created a sketch on the body. After creating the sketch, I pad it 18mm in height and thicken it to 1.3mm and I drafted it with 0.5deg in the direction of the tooling axis. I gave 3mm of chamfer with 45deg of inclination and after I gave a fillet of 0.2mm radius.

2 way locator 

CREATION OF HEAT STAKES:

Draft analysis of closed surface using tooling axis 

Front view 

Left view

Top view 

Isometric view