Search found 8126 matches

by kiwigeo
Wed Jan 23, 2019 7:50 pm
Forum: Instrument Builders Forum
Topic: Help needed to discover the maker
Replies: 2
Views: 66

Re: Help needed to discover the maker

Have you checked underside of the soundboard? Many makers sign and date their instruments in this location.
by kiwigeo
Mon Jan 21, 2019 9:28 pm
Forum: Instrument Builders Forum
Topic: Spectra question
Replies: 13
Views: 239

Re: Spectra question

Yes I'd certainly get some tea leaves on the job. I was of the understanding that the dip is a frequency where the top is not excited. So if you were to do clandi patterns, no tea leaves would be hopping at 201hz. I may be wrong on this but the reason it is so low is two shouldering peaks are coupli...
by kiwigeo
Sun Jan 20, 2019 3:21 pm
Forum: Instrument Builders Forum
Topic: Spectra question
Replies: 13
Views: 239

Re: Spectra question

Hi Jim,

Could you fill us in on the equipment you're using to record your spectra and the procedure you use to tap test (eg hittin device, where youre hitting the top and where the mic is located). Some info on the software and settings would be useful too.
by kiwigeo
Thu Jan 17, 2019 4:04 pm
Forum: Instrument Builders Forum
Topic: New Year
Replies: 9
Views: 837

Re: New Year

LOL......I don't know where half the guitars I've made are now. I use to "lend" them to muso friends and none of them seem to want to give them back :( You keep a record of the number of frets you hammer in??? You need to get that OCD treated :mrgreen: Nope, but I do keep a record of every instrumen...
by kiwigeo
Wed Jan 16, 2019 4:17 pm
Forum: Jigs & Fixtures
Topic: Radius Block Jig
Replies: 2
Views: 127

Re: Radius Block Jig

Nice work Mark. Is the router table also a self build?
by kiwigeo
Mon Jan 14, 2019 10:03 pm
Forum: Contemporary Acoustic Guitar Design and Build - Trevor Gore
Topic: My first frequency spectrum
Replies: 9
Views: 261

Re: My first frequency spectrum

I ran your figures through my spreadsheet and target thickness comes out the same as Trevors calculations at 2.7mm
by kiwigeo
Sun Jan 13, 2019 6:17 pm
Forum: Contemporary Acoustic Guitar Design and Build - Trevor Gore
Topic: My first frequency spectrum
Replies: 9
Views: 261

Re: My first frequency spectrum

Gerry,

I got mediocre results running via a Shure SM58 mic into a Windows machine running VA. I slapped a preamp between the mic and computer and got better results.
by kiwigeo
Sun Jan 13, 2019 12:22 pm
Forum: Instrument Builders Forum
Topic: Disaster I think
Replies: 4
Views: 390

Re: Disaster I think

Hard to say from the pics. They look a bit like pitch pockets to me. I know Queensland Maple often has similar "defects" which from a distance look like cracks but they aren't. Here are some pitch pockets in some cherry:
CherryPitch.jpg
CherryPitch.jpg (89.14 KiB) Viewed 381 times
by kiwigeo
Tue Jan 08, 2019 8:25 pm
Forum: Instrument Builders Forum
Topic: Fret seating problem
Replies: 25
Views: 827

Re: Fret seating problem

So, just so I have it right as a beginner, as I have used a bit of titebond, I can just carefully pull out the frets - no heat as it won't really soften and doesn't adhere to the frets anyway. Is that the consensus? I didn't mention but this fretboard is ebony not rosewood. Does that require a slig...
by kiwigeo
Tue Jan 08, 2019 6:27 pm
Forum: Instrument Builders Forum
Topic: Fret seating problem
Replies: 25
Views: 827

Re: Fret seating problem

More thoughts on gluing in frets.

Are we actually gluing in the fret (ie a metal to wood bond) or just stiffening up the sides of the fret slot to improve the tang seat?
If fret slotting and fret fitting is done carefully then do we actually need glue?
by kiwigeo
Tue Jan 08, 2019 3:29 pm
Forum: Instrument Builders Forum
Topic: Fret seating problem
Replies: 25
Views: 827

Re: Fret seating problem

I also read that you used titebond on the frets? Titebond isn’t suitable for fretwork. It’ll adhere to the fingerboard but not the fret. It needs to be CA/superglue. Have acetone handy for cleanup too as you’ll need it. I take the view that the water from the Titebond swells the wood surrounding th...
by kiwigeo
Tue Jan 08, 2019 12:00 pm
Forum: Instrument Builders Forum
Topic: New Year
Replies: 9
Views: 837

Re: New Year

You keep a record of the number of frets you hammer in??? You need to get that OCD treated :mrgreen: Happy new year everyone. As someone said last night - "Do what you did in 2018, but do it better in 2019" Hope you all have a great time making more beautiful instruments throughout 2019. Also, huge ...
by kiwigeo
Tue Jan 08, 2019 10:16 am
Forum: Instrument Builders Forum
Topic: Fret seating problem
Replies: 25
Views: 827

Re: Fret seating problem

How hot do the frets have to be to soften titebond? I might try one and see what happens. If I can't get them out without major issues, what is the downside in terms of playability if all the frets are leveled and crowned to the same height, but not completely seated? I guess the frets will have a ...
by kiwigeo
Tue Jan 08, 2019 9:28 am
Forum: Instrument Builders Forum
Topic: Fret seating problem
Replies: 25
Views: 827

Re: Fret seating problem

Looking at the bottom photo and in particular the side of the fretboard there appears to be a gap between the bottom of the fret tang and the bottom of the slot. is this actually the case? If so then slot width could be the problem. Regardless recutting the slot is IMO the best option. Jamming frets...
by kiwigeo
Mon Jan 07, 2019 9:51 pm
Forum: Instrument Builders Forum
Topic: Fret seating problem
Replies: 25
Views: 827

Re: Fret seating problem

When I cut my fret slots I have a piece of fret wire with tangs filed off that I run through the fret to check that the slot is deep enough. The solution to your issues - it sounds like the slot depth (or possibly width) is the issue so a fret pull is really the only fix. My method of pulling frets:...
by kiwigeo
Sun Jan 06, 2019 7:19 pm
Forum: The Gallery
Topic: Lord Vader
Replies: 5
Views: 282

Re: Lord Vader

A nice looking guitar and I'd be quite happy owning this instrument. My one question...why cover a wooden core with carbon fibre/kevlar? The CF/Kevlar certainly produces a visually appeal but are there other reasons for doing this?
by kiwigeo
Sun Jan 06, 2019 11:27 am
Forum: Contemporary Acoustic Guitar Design and Build - Trevor Gore
Topic: Bolt on bolt off neck - order of operations
Replies: 36
Views: 3534

Re: Bolt on bolt off neck - order of operations

You could just slap on another layer of veneer on the peghead. Drill through tuner holes from back side with a brad tip bit till tip just penetrates the upper surface of the new veneer and use this hole as a guide for the same bit drilling through from upper side of veneer.
by kiwigeo
Sun Dec 30, 2018 8:54 pm
Forum: Contemporary Acoustic Guitar Design and Build - Trevor Gore
Topic: Back radius question
Replies: 3
Views: 255

Re: Back radius question

Back stiffness can be most effectively trimmed by adjusting the height of the lower bout cross brace. Stiffness can be reduced by taking wood out from the central section of the brace or increased by carving a flat spot in the central part of the brace and gluing in additional wood. Thanks for that ...
by kiwigeo
Sat Dec 29, 2018 10:47 am
Forum: Contemporary Acoustic Guitar Design and Build - Trevor Gore
Topic: Back radius question
Replies: 3
Views: 255

Re: Back radius question

The specs in The Books for a live back are based on the radius figures in the books. You can go for a different radius but the way I understand things you'll need to tweak brace stiffness accordingly. I build with a 25' radius back and on my first Gore build I had to play around with the stiffness o...
by kiwigeo
Fri Dec 28, 2018 3:38 pm
Forum: Instrument Builders Forum
Topic: New Year
Replies: 9
Views: 837

New Year

A Happy New Year to all our members and a big thanks to you all for your sharing with others your wealth of knowledge and experience.

Cheers and a big thank you from Jeremy and Martin

:gui :gui :gui :gui :gui :dru :dru :dru
by kiwigeo
Mon Dec 24, 2018 9:04 am
Forum: Instrument Builders Forum
Topic: Attention all Lurkers
Replies: 29
Views: 3910

Re: Attention all Lurkers

Hi Gerry and welcome to the forum. Despite the name we welcome members from any part of the globe. The only requirement is at least a mild interest in stringed instruments. You mention you've just bought "The Books" which is another good reason to join our community. Quite a few of our members also ...
by kiwigeo
Fri Dec 21, 2018 9:35 am
Forum: Instrument Builders Forum
Topic: Attention all Lurkers
Replies: 29
Views: 3910

Re: Attention all Lurkers

Thanks for the post Bob and thanks for letting us know you're still around. I hope you get your health issues sorted and get back to building soon. No good having a pile of lovely tonewood sitting in your shed looking pretty....it'll look much more pretty on guitar :) Hi Martin, I have been a member...
by kiwigeo
Thu Dec 20, 2018 12:08 pm
Forum: Instrument Builders Forum
Topic: Acacia dread build thread
Replies: 109
Views: 7659

Re: Acacia dread build thread

What's that gun youre using?
by kiwigeo
Wed Dec 19, 2018 10:57 pm
Forum: Instrument Builders Forum
Topic: American Lutherie 118
Replies: 2
Views: 452

Re: American Lutherie 118

Go it stashed away somewhere...just have to find it.
by kiwigeo
Wed Dec 19, 2018 2:51 pm
Forum: Instrument Builders Forum
Topic: Go-bar rods
Replies: 13
Views: 846

Re: Go-bar rods

My hoop pine go bars generally exert pressure around the 7Kg mark. Not huge when you consider how much pressure you can exert with a cam clamp. "I'm wondering where the 7 kg figure originated here? With additive force on the braces, given that for each brace there are multiple rods, is 7 kg overkill...