1/2 Scale Electric Violin - EPV R2

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This package contains all the components needed to build a half-scale model of the Electric Parametric Violin (Revision 2). The violin was designed in Solidworks 2012 as part of a parametric model that generates any necessary size. If you're interested in CAD files, you can find them here. UPDATE: I've added split parts for smaller printers. See the instructions below for more details. This is my third attempt at designing an electric violin - the first was a half-scale model for my daughter, and the second was a sixteenth-scale model for my son. As with my last design, this violin's roots can be found in the excellent FFFiddle by David Perry. A full range of EPV sizes are available: • Four-quarter Scale • Three-quarter Scale • Half Scale • Quarter Scale • Eighth Scale • Sixteenth Scale Instructions Quick Start: See the instructions document for detailed build instructions. Split versions of large parts are included for use on smaller printers. I printed all parts with a raft, 15% infill, and four shells. The fingerboard should be printed without support since it's difficult to remove from the long holes in the part. (If you do want to print this with support, you can use a piece of music wire with a bend in the end and a drill to clean it out.) I used ABS, but any stiff polymer should be acceptable. UPDATE I've had a couple of requests to update this model for printers with a smaller bed. The A and B variants of the body and the fingerboard are split parts. When building with split parts, I recommend the following steps: • Sand the joining surfaces • Use an adhesive appropriate for the material being joined (I generally recommend epoxy, but YMMV) • Assemble the parts .. For the body, use one-eighth inch diameter dowel pins that are one inch long to provide a mechanical connection between parts. .. For the fingerboard, I recommend assembling the parts on the truss rod (with tensioning wire fully assembled), then assembling the violin. The tension of the assembled parts will clamp the joint together. Additional components required: • Schaller M6 Mini tuners (three plus three) • K&K sound "Twin spot" piezoelectric pickup • One-quarter inch rod or tube (tube is preferred - rod will need to have a hole drilled in it) • Violin strings • Twenty inches of music wire (zero-point-two-five millimeters to zero point-zero-three-five millimeters diameter - alternatively, a ball-end violin string can be used) Tools: • Hacksaw - use this to put a slot in the end of the tube that will catch the knot in the end of the music wire • Small Phillips screwdriver - for driving tuner screws • A variety of grits of sandpaper - used to smooth the surface of the fingerboard. A small amount of the appropriate solvent helps too. • Ten millimeter wrench - for tightening the tuner banjo nuts • Triangular or knife-edge file - for making notches in the bridge and nut for strings. With care, a sharp knife can be used for this. • Appropriate tools for cleaning support material from prints