The Fusion 360 keychain is an example item that comes with Autodesk's Fusion 360 CAD package. It was originally used for a CAM competition hosted in 2017, and is also often-times used as a demonstration or giveaway piece for Fusion 360 events.
I made workholding and CAM to quickly produce the keychain as a demonstration of the Tormach PCNC 1100 in The Construct at the Rochester Institute of Technology
2-Station Soft Jaws
To manufacture the keychains as quickly as possible, a set of soft jaws were made. The soft jaws have 2 stations on them
The first is used to hold the raw stock to machine the general shape and back of the keychain. At this step, the CAM also has an optional step to engrave text or an image on the back of the keychain.
After the first operation, the part is flipped and held in the second station on the side profile that was just finished. The slight curvature of all the side faces help to locate the part in its recess. Once the remaining raw stock is removed, the top surface is roughed with progressively smaller endmills, until finally a 1/16" ball nose endmill finished the surface in simultaneous 3-axis passes. The finishing operation is repeated again at a 90 degree angle to the first, creating a cross-hatched pattern in the part.
The top of the soft jaw was engraved with useful information, such as identifying each jaw, the datum, and the CAM file they were designed to run with.
Each keychain can be customized with text or a vector-based engraved image on the back
It takes 49 minutes to machine one keychain in the current configuration. By making the roughing steps more aggressive, or increasing the stepover of the finishing tool, the time can be reduced by as much as 60%, but with a significant reduction in quality.