Since releasing the 2005 version of ShipConstructor, an AutoCAD-based 3D product modeling software for shipyards and designers, Albacore Research Ltd. (ARL) has been working with customers to introduce more time- and cost-saving features. In collaboration with Japanese and Australian shipbuilders, two new features, Accuracy Control Marks and Automatic Straking, are offered. Small inaccuracies easily add up to significant deviations during multiple steps of assembly. Precise fabrication is a means of reducing rework, delays, and waste. In Japan, Accuracy Control Marks are used for two tasks: aligning stiffeners with high accuracy on plates as well as the accurate joining of plates for welding. This feature is now available through the latest update of ShipConstructor2005.