Make a model of the stock in a new tab of the robot manufacturing document, then make an assembly with that model fixed to the origin. Give the assembly a meaningful name
Make a version of the main robot document, then import the parts you intend to cut into the assembly
Use planar mates to put the bottom of all parts on the same plane as the stock
Arrange the parts imbedded within the stock model at least ½” from each edge, ¼” from locations you will put fasteners, and ¼” (preferably more) apart from other parts
Right click the assembly tab, then export the entire assembly as a STEP file
Fusion 360 Manufacture
Import your assembly into a new document (File button > Open > “Open from my computer…”)
Click the “Design” button in the top left corner, then select “Manufacturing” from the dropdown
Make sure your units are set to inches (should be shown in top left corner)
Create a new setup by clicking the folder icon
Set your stock point to the box point closest to the origin on the bottom of the material
Set the “stock offset mode” to “From Solid,” then select the model of your material as your stock by clicking it
In the top left corner of your screen, click the arrow to the left of “Models,” then the one to the left of “Unsaved,” then the eye icon next to your stock model in the dropdown to hide the stock
Use a template to make an operation
Right click on your setup, then select “Create From Template” in the resulting menu
Select “Choose Template” and navigate to Local\2052CNCTemplates in the popup menu
Select a template for a specific tool and operation
Right click on the added operation, then click “Edit”
Select part geometry and edit the operation as needed
For every path under your setup
Select “Post Process” under the “Actions” dropdown
Use the “ArtSoft Mach3Mill” post processor
Rename the file to something useful
Click “Post”
Files will be in your Documents folder under “Fusion360\NC Programs”