Model created in Zbrush. It is watertight and ready for printing/milling. Although there are some undercuts, it was created with molding and casting in mind. Inlcudes 3 file versions:
With minimal background thickness to minimize amount of casting materialWith extra background thickness for more durable prints
Nominal size (although easily adjustable in any 3D software) is: 20 mm wide 34 mm tall 7 mm deep and 1140 cmm volume.