Door Arm Rest Week 8 Challenge

DOOR ARM REST CLASS B&C SURFACE CREATION:

STEP 1:  CONNECTIVITY OF CLASS-A SURFACE

• First check the connectivity of the given surface or component
• This is done by creating boundaries or by using Join command
• Ensure that there is no gap between surface connection

STEP 2: TOOLING AXIS CREATION

• First visually analyse the possible direction of Tooling direction.
• Here we can see the pocket, so take it as a surface bath of tooling axis.
• To create tooling axis on this surface first extract the base surface, and create normal line along with surface and centre poin of surface.
• This normal line is called Tooling axis. 

After creating Tooling axis, perform Draft analysis for the given class A surface.

FAULT IN CLASS-A SURFACE:

The above pictures shows there is error or fault in given class-A surface.

Class-B surface creator not allowed to edit or change given class-A surface, need inform to team.

After getting approval start to create Class-B&C surface.

STEP 3: B-SURFACE CREATION

• B-surface creation is done by offsetting class-A surface to required thickness.
• Offsetting class-A surface with fillets are more complicated, so go with extract and untrim the surfaces.
• Extract the all the sketch or surfaces used to create object and Untrim it.
• Extrapolate the surfaces till interact each relative surfaces.
• OFFSET it into required thickness of part
• Trim the surfaces to get proper surface without fillets, then fillet it.

 POCKET :

• Extract base surface and untrim surface.

• Offset this surface along with thickness.

• Like base surface create offset surface for the remaining area of Class-A surface.

• Trim all the surface with each other to get offseted Class-B surface.

UPPER SURFACE OR REMAINING SURFACE:

FILLETS:

• Perform fillet for the all edges after get complete Class-B surface, Otherwise it is more complecated to create class-B surface.

STEP 4: CLASS-C CREATION

• Create the boundary around the given Class-A surface. 
• If this boundary has more surface, then split it into two or more boundary around the surface.
• Here the boundary has lots of intermidiate joints, this create gap while sweeping.
• To avoid this issue split boundry into two or more to make it as easy.
• Now sweep the boundary with direction of tooling axis.
• This sweeping area is the thickness of the Class-C surface.
• Make extrapolate the sweep area to attain the intract with Class-A and Class-B surface if required.
• Do trim operation sweep area with both class-A&B surfaces.

  

make it solid by using close command on Part workbench

STEP 5: DRAFT ANALYSIS

• Draft analysis is done after determine the tooling axis.
• Ensure weather all the surface angles are more than 3 degrees along with tooling axis direction.
• There are some colour codes are used to easily determine the angle value
• If the whole angle is more than 3 degrees, then surface colour turned into Green for one type scale and for another scale it has 5 colour variation.
• Here our surface area has more than 3 degrees.
• Below 0° angle indicated by red in colour, these are has negative angles.

Already we saw that there was an error or issue in draft angle in given class-A surface.

VIEWS:

 

STEP 6: PUBLICATION

• Create publication for Tooling axis, Draft analysis and B&C-surface creation