Wiring harness design in CATIA V5 - 3D modeling Week 7 Challenge
WIRING HARNESS ASSEMBLY FLATTENING AND DRAWING
INTRODUCTION:-
Here i'm going to create the engineering graphic file for a previously made wiring harness assembly file. Catia have dedicated workbench to generate flattend graphic representation of the 3D wiring harness assembly file. It is helpful to create a simplified visual of complex wiring harness bundles. For an electrical engineer, 2d graphic representation is given as the input for wiring data. Flattend models can be easily converted into a drawing files with all the relevant informations are included.
Workbenches used:-
Electrical harness assembly
Electrical harness Flattening
drafting
Flattening methodology:-
Wiring harness assembly-

This is the previously made harness file. For the purpose of flattening, we move onto Wiring harness flattening workbech.
First step isto specify required Wiring harness flattening parameters.

After specifiying parameters, we can use extract command to import the assembly product file to flattening workbench.
use flatten command make the flattend model of wiring from the assembly file.

Required main bundle needs to be selected and pressing 'select all branches'.
The option 'active plane' is used to specify on which plane we want to make the flattening.
clicking ok will generate flattened model of the assembly.


Using the toolbar, We can adjust the positions and lengths of all branches according to the requirement.


After finishing neccessary manipulations, The 2D drawing can be generated.
Making a new drawing file and importing the front view from flattened model:-

Input data will not include the necessary geometries, We need to change certain options from the properties of the front view to show all details. Enabling 3d wireframe shows the wires and protective coverings.

The symbols for connectors and wires are made as per the specification of flattening properties. Inorder to generate 3d views, we may need to change those settings.

Finished Drawing:-

Conclusion: Studied and Prepared Flattening of a wiring harness assembly. Generated 2d graphic drawing of the flattened model.