On 6/17/2020 9:32 AM, Teate, Stephen via KRnet wrote:
Somehow I chose to us ¼" plywood that I laid two layers of KR cloth on the
front, followed by a silk weave, and a single layer on the back.
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I too started with a 1/4" plywood panel but when finished I didn't like
the thickness. It seemed like the instruments were "recessed". I
started over and laid out 12 layers (as I recall, that was 20 years ago)
of KR cloth, cut to shape, laid a piece of 1/4 round wood trim across
the bottom for stiffness, then added two 1/4" very thin aluminum tubes
from the hardware store as braces from the bottom of the panel to the
firewall shelf. The entire assembly is shock mounted on 5 rubber
corks. Other means of stiffening could be used like small ridges of
foam strips on the back side in areas between instrument / switch
locations if desired.
https://www.dropbox.com/s/1vajeb0u48h0aio/IMG_8717.JPG?dl=0
The nice thing about the panel being translucent before painting was I
could back-light the panel with the instrument in place and see the
mounting hole locations so I didn't need a temple to drill the holes.
The thickness and stiffness of my panel seems to be just right with the
installed braces.
As always, YRMV...........
Larry Flesner
Southern Illinois
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