Official Luthiers Forum!

I have a GB deck I bought awhile ago. It is non adjustable for height.
The go bars I got with it are fiberglass rods cut to length for that fixed height.
I now am using radius dishes composed of two thicknesses of mdf, so they
are 1 1/2".
My question is are my go bars now too long? Seems to me they might make too
much pressure now. Anyone have a formula to measure the pressure relative to
go bar deflection?

There was something a few weeks ago. If I understood it correctly, for a given go-bar material, once you've flexed them a little bit, the pressure remains unchanged until you've bent them a ton. The farther you bend them, the squirrellier they'll get though. Make sure you wear your goggles.

Mike

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Mike Lindstrom

If you got that from Blues Creek you are fine. The standard length is 21 1/2" about the same as the opening . I brace on a 1 " disk with the same go bars you do and they work. You need to have about an 8 to 10 lb force

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John Hall
blues creek guitars
Authorized CF Martin Repair
Co President of ASIA
You Don't know what you don't know until you know it

John, do you glue on your tops and bottoms with the go bar deck?

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Steve Smith
"Music is what feelings sound like"

No I don't use a gobar for gluing tops and backs , I have a press.

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John Hall
blues creek guitars
Authorized CF Martin Repair
Co President of ASIA
You Don't know what you don't know until you know it