Original model by: D@n!, source:
I cleaned the model and transformed it into STL format. I also provide a decimated model for easier handling.
Excerpt from Wikipedia:
"David is a masterpiece of Renaissance sculpture created between 1501 and 1504, by the Italian artist Michelangelo. It is a 5.17-metre (17.0 ft) marble statue of a standing male nude. The statue represents the Biblical hero David, a favoured subject in the art of Florence. Originally commissioned as one of a series of statues of prophets to be positioned along the roofline of the east end of Florence Cathedral, the statue was placed instead in a public square, outside the Palazzo della Signoria, the seat of civic government in Florence, where it was unveiled on 8 September 1504." (http://en.wikipedia.org/wiki/David_%28Michelangelo%29)
If you slice with Cura, rescale to preferred size and then sink to bed about half way of the curved base. If you want to include the curved base, use brim (recommended) or raft (not tried).
If you slice with Slic3r, rescale to preferred size and then set the layer height to 0.000 mm up to mid way of the curved base. To include the curved base, use a wide brim (6 mm or more) or raft (not tried).
The model is very tall and has a narrow base => ensure good platform adhesion and limit your xy acceleration by reducing printing speed.