Designing the Northwood
CAD Model - Wire Frame
The wire frame view lets allows the designer to see other walls or surfaces in relation to other features of the model (ie. the cavity and the face of the putter or the shaft hole and the bottom of the putter).
Northwood Milling and ABS Prototype
This shows the raw milling and 3D printed model side by side - they are the exact same dimensions although the picture makes the raw head look much smaller.