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21 Mar 2015

Posted by Larry Atha in Larry Atha Tonewood Testing / Builds

Thanks to our Host, Mr, DaCosta, who has inspired me to publish and share these experiments.  


I am Larry Atha, an aspiring amateur builder.  By training and past experience, I performed shock, vibration and acoustic measurements.  I did experimental modal analysis (typically of flight systems and subsystems).  I hope to use this forum to show the usefulness of frequency response function measurements (FRFs) in my first few builds.  FRFs are transfer function measurements - measuring input and output.  These FRFs are typically displayed in the frequency domain, and then I plan to use techniques from experimental modal analysis to fit these measurements. This will hopefully permit me to characterize the modes, mode shapes and the damping at these modes of my builds.  By recognizing these modes and mode shapes and the damping at the modes, I hope to be able to learn to be able to better control my results.  Has anyone been using FRFs and Experimental Modal Analysis to help control their builds?  

  248 Views · 11 Replies ( Last reply by hoytbasses )


Rope Binding

25 Mar 2015

Posted by Phil Armstrong in Help Forum

I seen some nice rope bindings on some guitars and may some day make an attempt at it. Question is how is it done. My guess would be individual pieces chamfered ed I think on a 45 and fitted together very carefully.

Could someone shed some light and hopefully there is a tutorial I have not found showing it.

  149 Views · 11 Replies ( Last reply by the Padma )



25 Mar 2015

Posted by the Padma in Help Forum


  64 Views · 1 Replies ( Last reply by Phil Armstrong )

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