Search found 7 matches

by Ken Lewis
Sat Sep 29, 2018 11:02 pm
Forum: Contemporary Acoustic Guitar Design and Build - Trevor Gore
Topic: testing with an iPhone
Replies: 4
Views: 2138

Re: testing with an iPhone

I sometimes use Spectrum Analyzer on andriod. Readings look to be same as those I get with VA and Adobe Audition on my PC.
Ken
by Ken Lewis
Tue Mar 20, 2018 10:55 am
Forum: Instrument Builders Forum
Topic: Counter sinking bolts BO/BO fretboard extension
Replies: 13
Views: 4411

Re: Counter sinking bolts BO/BO fretboard extension

I use m6 or, 1/4" even, for this exact application with no problem. You're right, the m5 version probably won't be found in your neighborhood hardware store but a quick Google search turned up several vendors. A search from your neck of the woods might turn up something more applicable to you but he...
by Ken Lewis
Sun Mar 18, 2018 11:50 pm
Forum: Instrument Builders Forum
Topic: Counter sinking bolts BO/BO fretboard extension
Replies: 13
Views: 4411

Re: Counter sinking bolts BO/BO fretboard extension

A connector bolt like this one shouldn't require any counter bore. The low profile keeps it out of site.
Hardened and plenty strong.
connector.jpg
connector.jpg (35.65 KiB) Viewed 3913 times
by Ken Lewis
Mon Jul 20, 2015 12:28 pm
Forum: Contemporary Acoustic Guitar Design and Build - Trevor Gore
Topic: SS 14 fret falcate
Replies: 9
Views: 4830

Re: SS 14 fret falcate

Well now, Late night is probably a poor time to run tests and hurredly post the results. It wasn't even 'til a few days later that I realized that 24.5 x 10^-3s/kg was an unrealistic number for my monopole mobility. (after doing some more reading in the design book) I'm surprised no one was quick to...
by Ken Lewis
Tue Jul 14, 2015 11:00 am
Forum: Contemporary Acoustic Guitar Design and Build - Trevor Gore
Topic: SS 14 fret falcate
Replies: 9
Views: 4830

Re: SS 14 fret falcate

Trevor Gore wrote "You seem to have something going on at ~300Hz. Do you know what that is?" Not sure at all, thinking it could be just ambient or system noise I recorded some taps using a recording software (Audition) whereby I could do a noise reduction thus eliminating anything other than sound f...
by Ken Lewis
Mon Jul 13, 2015 11:55 am
Forum: Contemporary Acoustic Guitar Design and Build - Trevor Gore
Topic: SS 14 fret falcate
Replies: 9
Views: 4830

Re: SS 14 fret falcate

Hello Martin Here is my data for the half plates for the lutz top L 563mm W 210mm t 5.3mm mass 243g fl 99.4hz fc 174hz flc 69.25hz By all means please run the numbers as a check for me. I came out at 2.8 mm Oh! I used standard SS top numbers for f (75 I think) Getting to Trevor's response I did some...
by Ken Lewis
Fri Jul 10, 2015 9:57 am
Forum: Contemporary Acoustic Guitar Design and Build - Trevor Gore
Topic: SS 14 fret falcate
Replies: 9
Views: 4830

SS 14 fret falcate

Hi all I recently buffed and glued the bridge on a 14 fret SS. Lutz top with Ovangkol B&S . I followed the Books' methods for bracing and thicknessing top and back as well as laminated maple top linings and live back. Top thickness 2.8 mm, back thickness 2.4 mm. Before installing bridge the the spec...