VSP-G1 Sound Post GAUGE
VSP-G3 MASTER GAUGE.
VSP-G1 Violin Sound Post Gauge
The gauge consists of two parts.
1 Main Body and 2, spring loaded slider inside the body and held
together by friction. In application, ( By pulling on two ends) the gauge is set slightly longer than expected Sound Post
length. Using a suitable tool (here our model PRO2-Plus) the
gauge is introduced towards highest point inside the violin sound box
and then carefully maneuvered towards the spot intended for the sound
post. The gauge now assumes the length of the sound post. Then the
gauge is moved back towards the high point inside the violin sound
box, tool is tilted and withdrawn showing the length of the sound post.
The PRO-Plus inserting tool is used to more
accurately define sound post position. The handle arm extension is
lowered to show position of the top of the gauge.
VSP-G3 MASTER GAUGE
Basic construction is similar to that in model VSP-G1.
In addition, a ball with swivel cap is added to the end of the main
For best accuracy the measurements are
done in three steps:
1. A mark is Placed at top of violin sound box, to show
position of the sound post. The Gauge is introduced inside the sound
box and set in intended position, Place a mark showing the spot
at the sound gauge bottom. Withdraw the Gauge and copy length in
2. Place the swivel cap back on the ball, facing the top. Position the
gauge between top and bottom marks. Pull the gauge up to ensure the
swivel cap is in good contact with the violin inside top. Push down on
gauge to shorten the length, thus ensuring it can be withdrawn without
disturbing the swivel cap. Withdraw the sound post gauge, attach
magnetic plate, copy the angle of the swivel cap.
3. Repeat sep 2 with the sound post gauge swivel cap pointing down.
Length and angles can be traced to tape on the cutting board. Sound
post blank is placed in line with the sketch. A saw guide is aligned
the angle lines and the sound post is cut.