Aluminium cornerless 4/4 Violin

The following is another brief photo description of the making of an aluminium bodied cornerless "Chanot" style 4/4 size violin, to the same spec's as the standard shape 4/4.
The overall measurements are again from 'Juliet Barker', the contour templates are for a Sacconi Strad 1716 & the neck/scroll dimensions are from 'Strobel'.
The completed specifications are:
Body length  355mm                     Top/end of fingerboard to belly      22mm
Top bout      168mm                     Bridge centre height                   33.3mm
Middle bout  112mm                     E string height above fingerboard 2.5mm
Bottom bout 208mm                     G string height above fingerboard 3.5mm
Rib height      30mm                     Fingerboard to bridge                    50mm
Body stop     195mm                     Tailpiece saddle to bridge              50mm
Neck stop     130mm                      
Fingerboard length 270mm 
Vibrating string length 325mm (standard 2:3 ratio
Total length from top of scroll to bottom edge of top plate 600mm  .
The arching are:   top plate 14.4mm, back plate 12.4mm.
(Actual concavity: top plate 13.5mm, back plate 11.5mm.)            
with 1.2mm aluminium used for the plates, bass bar and joining clips and 0.9mm for the single piece rib.
The neck, top block and sound post are again made from unknown wood from a yacht's spar, with ebony finger board, nut and pegs, with the mini tailpiece made from 2.0mm aluminium. 
There is no bottom block or endpin as the mini tailpiece is attached to the belly above the lower end of the the bass bar.
The curved sound holes are 89mm in length and increase in width from 6mm at the top to 7.5mm at the bottom.
The estimated finished weight with chinrest attached was 750grams, the actual finished weight is 750grams, exactly as estimated.
(the weight of a normal 4/4 sized wooden violin, with chinrest attached, is approx. 450grams.
The strings are:
E - D'Addaro Prelude J811 E-Mi 4/4 Polished Steel, Medium Tension.
A - D'Addaro Prelude J812 A-la  4/4 Aluminium Wound. Medium Tension
D - D'Addaro Prelude J813 D-Re 4/4 Nickel Wound, Medium Tension
G - D'Addaro Prelude J814 G-Sol 4/4 Nickel Wound, Medium Tension

Inside views prior to assembly.

Exterior views prior to assembly

Front view

End view

Front view

Oblique view

Side views

 Peg box

Top end view

Top view & scroll

This page was last updated  on 29 June 2004