A part was chosen in teams of 4 to take apart different mechanical components and CAD them. This part was a car fan clutch which had a lot of fun symmetrical and mirroring geometries which gave the team a lot to work with.

The teardown of the Fan Clutch

All pieces

From there each layer was split between the team to reCAD only using measurement tools like calipers.

I 3D modeled the following pieces on SolidWorks while heavily using the Linear Pattern feature (as well as the standard Extrude and Draft).

CAD of Bottom Housing(Outside)

CAD of Bottom Housing(Inside)

CAD of Fan Fin

CAD of Full Assembly

Additionally I made a drawing for documentation practice:

CAD Drawing Documentation of Helical Piece