The
following is another brief
photo description of the making of an Magnesium bodied 4/4 size violin, this
one is bonded together with Araldite Super Strength two part exopy resin.
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 (20.0mm)
Top bout 169mm
Bridge centre height
(32.8mm)
Middle bout 113mm
E string height above fingerboard (3.0mm)
Bottom bout 210mm
G string height above fingerboard (5.0mm)
Rib height 32.2/33.4mm Fingerboard to bridge
(53.0mm)
Body stop
195mm Tailpiece saddle to bridge
(50.0mm)
Neck stop
130mm Saddle height above belly
(3.0mm)
Body thickness (Internal) 54mm String angle 58 degrees
Fingerboard length 270mm
Vibrating string length 325mm (standard 2:3 ratio
Total length from top of scroll to endpin, approx. 600mm
The arching are: top plate 11.8mm, back plate 10.8mm.
(Internal concavity: top plate 11mm, back plate 10mm.)
with 0.8mm magnesium used for the plates, bass bar and ribs. The rib
locating/edge reinforcement strips are 0.8mm Aluminium.
The neck is Bosnian Maple, blocks and sound post are Spruce, with ebony
finger board, nut, end pin, pegs and tailpiece, with an Aluminium saddle.
The finished weight with attached Dresden chinrest is 518grams, compared to
582grams for the Aluminium bonded
bodied one. The central torsional tube weighs 32grams so there is a further
possible weight saving there.
(the weight of a normal 4/4 sized wooden violin 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
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