Creating Different Layers in an Inventor Drawing and Exporting to AutoCAD

You can create layers in Autodesk Inventor and have those layers export to AutoCAD. Here are the steps that I've found work pretty well when trying to export an Inventor drawing with layers that AutoCAD will recognize.

Adding Layers to Inventor Drawings

Make sure the style library for the project is set to Read/Write
When a model/dwg is open

Manage tab-->Styles Editor

Expand Layers
Click New…

Will create a copy of the currently selected layer
Rename as required

Here you can edit the color, linetype and lineweight

Just like in AutoCAD layer manager

Once layer(s) have been created Save and Close the styles manager
Back in the drawing

Shift right-click, change selection to part priority

Select the desired part

Right click --> select as edges

Go to annotate tabe

In the format panel, select desired layer for selected part

Layer manager inside the Styles Editor

Set up AutoCAD to recognize Inventor Layers

Open AutoCAD or ACAD Mech
Open the Layer Manager
Create the layers you wish to export from Inventor

The names of the layers much match exactly
Set colors, line types and line weights as desired

Once layers are created, save the ACAD file as a drawing template

Exporting Inventor DWG to AutoCAD

In Inventor select File>Save Copy As
Select AutoCAD dwg as the file type and click Options
Choose the AutoCAD version you are working with
Click Next
On the next screen select the Export Options as desired
Before clicking Finish, make sure you search and select the AutoCAD Template file that was created to match the Inventor layers
Click finish