bracing with a radius dish

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staring with a 25 foot radius someone made for me on a CNC machine .

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I lay the same pattern out on a piece of  3/4 and 1/4 MDF.

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using calculations and an article downloaded from the internet ,I figure out spacers.

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 next I drill holes and split the spacers

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and glue them in place on the grid layout

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once screwed down it creates the 25 foot radius

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the dish now has the same curve as the back of the brace

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now a full scale layout

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then cut outs are made to make a layout template

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this transfers to the soundboard

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a homemade go-bar clamp I made a few weeks ago

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 3/8th dowels are spring loaded to glue braces in place

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I glue in a few sections at a time

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the arch is subtle

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the arch will add strength and tonal value

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next I’ll set up a spindle clamp work board and glue the top on

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