RepStroh
The first, good quality, acoustic, printable violin! the RepStroh! (with optional electric pickup as it is a tad quiet)
See thing:781491 for assembly, as it is close to it, the changes to it should be self explanatory.
extra parts you'll need (McMaster-Carr part #):
diaphragm mount and diaphragm screw
90592A009
90258A187
Needle Bearing
5905K730
here's a video of my father (http://www.sasanach.com/) playing the RepStroh
https://drive.google.com/open?id=0BxMvOsPwI2OLY2dDWExYMWhRSlk
History of the Stroh violin: https://en.wikipedia.org/wiki/Stroh_violin