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Step 3Shims might be necessary
The tines need room to vibrate, so depending on the type of surface chosen and the way the bar is mounted, it may be necessary to lift the grounding bar up off the instrument body using a shim. This just requires 3 more holes using the grounding bar as template.
The photo shows a steel bar and a wood square dowel for shims. Plastic, clay, bondo, rock hard water putty or other materials could be used.
The shims in the photo are trimmed and clean but they could be made of scraps, rough and irregular of edge, as long as the thickness is consistent.
Metal tines can be bent away from the instrument to give more vibration room (action), the more action the easier it will be to play.
Later steps show examples where no shims are needed.
The photo shows a steel bar and a wood square dowel for shims. Plastic, clay, bondo, rock hard water putty or other materials could be used.
The shims in the photo are trimmed and clean but they could be made of scraps, rough and irregular of edge, as long as the thickness is consistent.
Metal tines can be bent away from the instrument to give more vibration room (action), the more action the easier it will be to play.
Later steps show examples where no shims are needed.
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