Model created in Zbrush and ready for printing/milling.
The model is included in 3-parts
Each version is provided as a decimated OBJ and STL (all parts together have 655.000 polygons).
Nominal size (although easily adjustable in any 3D software) is:
Version all the parts together: 30.00 mm diameter / 3.00 mm deep / Volume = 754.70128 mm3
Version the head: 20.00 mm tall / 15.30 mm wide / 2.62 mm deep / Volume = 330.717085 mm3
Version the background: 27.60 mm diameter / 0.50 mm deep / Volume = 293.717944 mm3
Version the frame: 30.00mm diameter/ 1.70mm width/1.50mm deep/Volume = 130.2663 mm3