Door Arm Rest Week 8 Challenge

1.TOOLING AXIS:

Extract base surface of the given class A surface of door arm rest and place a point by extracting ARC on surface and making it into circle by using three point circle.Draw a line normal to the extracted surface.It is the tooling axis.

SLIDING AXIS:

The side face of the door arm rest class A surface is extracted and untrimmed and a point is created on the surface. A line is now drawn normal to the surface which acts as the slider axis.

Offsetting Class A Surface :

The class A surface is offsetted to a distance of 2.5mm as per the design parameter.

Removing side ribs :

Generally in door arm rest any inward ribs can not be created and there is a surface which has not been extrapolated.

Removing the ribs :

The ribs from the back surface is removed by using join sub elements to remove command.

Class B Surface :

The fillet surface on the bottom is created using multisection selecting the side edges as profile and the edge of the base as guide. Then the remaining portions are filled using fill command.Now the edges of the created offset is extrapolated and is named as class B Surface.

Boundaries :

Boundaries are extracted from the class A surface.

Class C Surface :

The smooth curve is swept using sweep ----> Line type -----> with reference surface -----> 90 deg angle (5mm sweep length). The edges are joined to form the class C surface.

Joining A & C surface :

The class A surface and class C surface are joine using join command.

A,B & C Part :

class C surface is trimmed with the A & C surface join to create the final part of A, B & C surface trims.

Final Part :

After joining all the faces there will be a surface left to fill in the bottom.

The class B surface hole is filled and the Class A surface hole is extrapolated then is trimmed to form the final part or final surface.

Final Surface finish of door arm rest :

Part body conversion :

The work bench is changed to part body workbench from surface design work bench. Using closed surface command the surface model is converted into solid part body.

Draft Analysis :

Part body is created to the given CLASS A surface and draft analysis is done.There are many deviations in class A surface that need to be done by class A designer.