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28 style rosette measurements
Posted: Fri May 24, 2013 1:05 pm
by Ben-Had
John, have you got the measurements for inlaying this rosette?
Re: 28 style rosette measurements
Posted: Fri May 24, 2013 2:08 pm
by Ben-Had
With a 4" sound hole I get this - Inner and Outer rings .075" wide, Middle ring .192" wide spacing between sound hole and rings is .10"
Inner ring I.D. - 2.1"
Middle ring I.D. - 2.275
Outer ring I.D. - 2.567
Sound about right?
Re: 28 style rosette measurements
Posted: Fri May 24, 2013 5:47 pm
by tippie53
the spacing of the rings are .110 but Martin has a tolerance and .010 is not out of the question
Re: 28 style rosette measurements
Posted: Fri May 24, 2013 7:07 pm
by JRHall
Ben-Had wrote:With a 4" sound hole I get this - Inner and Outer rings .075" wide, Middle ring .192" wide spacing between sound hole and rings is .10"
Inner ring I.D. - 2.1"
Middle ring I.D. - 2.275
Outer ring I.D. - 2.567
Sound about right?
I think your I.D.s should be I.R.s
Re: 28 style rosette measurements
Posted: Fri May 24, 2013 10:53 pm
by Ben-Had
tippie53 wrote:the spacing of the rings are .110 but Martin has a tolerance and .010 is not out of the question
Thanks.
Re: 28 style rosette measurements
Posted: Sat May 25, 2013 6:52 am
by tippie53
I shall find out more and will see if I can get the dead on spec .
I know they changed a good bit. The spec you post are the pre war size the modern is a little heavier.
Re: 28 style rosette measurements
Posted: Sat May 25, 2013 8:54 am
by Ben-Had
I thought maybe that was the case. I think I'll be OK with the measurements I have (or within .005 -.010) but it would be interesting to know the specs.
Re: 28 style rosette measurements
Posted: Sat Jun 01, 2013 7:54 am
by tippie53
I have just posted a documented 1939 Martin D 28 top.