Search found 19 matches

by David Aumann
Sun Dec 09, 2012 11:11 pm
Forum: The Gallery
Topic: Koa and blackwood tenor uke
Replies: 3
Views: 5101

Re: Koa and blackwood tenor uke

Thanks Bill and Allen. That rosette ... well, I THOUGHT about having someone laser engrave it for me, but in the end I cheated instead. Using WordArt, I designed the name/date to fit around a circle and found a font that would print it in letters only 1/8" high. Then I made a 1/4" rosette out of aba...
by David Aumann
Fri Dec 07, 2012 5:54 pm
Forum: The Gallery
Topic: Koa and blackwood tenor uke
Replies: 3
Views: 5101

Koa and blackwood tenor uke

Here's a tenor uke I was asked to build. I suppose you could call it a commemorative uke. Apart from the slotted headstock, its special feature is the rosette, bearing the owner's son's date of birth. This uke has a koa top with Victorian blackwood back and sides. Internally, I use five small fan br...
by David Aumann
Tue Oct 09, 2012 11:17 pm
Forum: Instrument Builders Forum
Topic: My first contribution - two dreadnoughts post Ervin class
Replies: 21
Views: 22093

Re: My first contribution - two dreadnoughts post Ervin clas

Hello John, Martin, Mike, Phil and Kim, Thanks for your kind words. Some of you asked a few questions. John, I haven't been totally slacking off this year. I've built quite a few ukes and I'm almost finished another dreadnought guitar, this time with ziricote back and sides and a bearclaw Sitka top....
by David Aumann
Mon Oct 08, 2012 11:29 pm
Forum: Instrument Builders Forum
Topic: My first contribution - two dreadnoughts post Ervin class
Replies: 21
Views: 22093

Re: My first contribution - two dreadnoughts post Ervin clas

Here are a few pics of the walnut/spruce guitar:

Cheers, David.
by David Aumann
Mon Oct 08, 2012 11:18 pm
Forum: Instrument Builders Forum
Topic: My first contribution - two dreadnoughts post Ervin class
Replies: 21
Views: 22093

Re: My first contribution - two dreadnoughts post Ervin clas

It may have taken me some time to get around to this, but here are a couple of finished guitars. Actually, I finished them about 8 weeks ago, and it's taken me a while to get the pics up for display. Perhaps I should have put the pics in the Gallery section, but the guitars started off here. so ... ...
by David Aumann
Thu Jul 05, 2012 12:18 am
Forum: Instrument Builders Forum
Topic: Sandpaper
Replies: 31
Views: 22967

Re: Sandpaper

If you happen to live on the east side of Melbourne, then a visit to Pete's Bargain Centre at Chirnside Park is worthwhile. He carries a huge selection of papers, linishing belts, sanding discs etc. I paper my thicknessing sander with BI-I-IG linishing belts from Pete's that I cut down myself with a...
by David Aumann
Thu May 31, 2012 10:19 pm
Forum: Instrument Builders Forum
Topic: Toona Ciliata
Replies: 11
Views: 11028

Re: Toona Ciliata

I bought the front of a cedar chest at a garage sale once, and made a tenor uke out of it. I'm attaching a few low res pics. The uke sounded good, but perhaps I made the top a little on the lightweight side because after a time it developed a longitudinal crack behind the bridge, which I then had to...
by David Aumann
Thu Mar 29, 2012 12:06 am
Forum: Instrument Builders Forum
Topic: King Billy Pine
Replies: 17
Views: 21474

Re: King Billy Pine

I have never used King Billy as a guitar soundboard. I have in the back of my mind that Maton originally tried it on their Australian Series guitars but soon substituted it with spruce (for reasons unknown) making them semi-Australian, I suppose. However, after reading some of Peter's printed work, ...
by David Aumann
Wed Mar 28, 2012 11:44 pm
Forum: Instrument Builders Forum
Topic: Accidents Happen...Blackwood OM rebuild
Replies: 39
Views: 32111

Re: Accidents Happen...Blackwood OM rebuild

Hello John, A few years ago I was asked to build a baritone uke from spalted myrtle/King Billy. Having finished the job I was invited to a folk club by the fellow who ordered the uke. Well, when I say finished, it was 'in the white', but he'd be able to see what it was going to look like. Whilst loa...
by David Aumann
Sun Mar 04, 2012 11:17 pm
Forum: Instrument Builders Forum
Topic: Wood Rebirthing
Replies: 44
Views: 38815

Re: Wood Rebirthing

myrtletenor2.jpg I can't match some of the stories you guys have just told, but I'm attaching a couple of pics of a tenor uke that I made recently. The back of it is spalted myrtle, salvaged from a 1970s bedhead thrown out in hard garbage a few years ago. It was three boards glued together. The top...
by David Aumann
Sun Feb 26, 2012 6:26 pm
Forum: Instrument Builders Forum
Topic: Help with wood identification
Replies: 25
Views: 19077

Re: Help with wood identification

Hello Lillian,

I don't know you, but it sounds like you've come from left field to identify my mystery wood! Thank you!!

Cheers, David

PS I'll consider I know you now ...
by David Aumann
Sat Feb 25, 2012 12:22 pm
Forum: Instrument Builders Forum
Topic: Help with wood identification
Replies: 25
Views: 19077

Re: Help with wood identification

Okay, I got the scales and ruler out and worked out the density in g/cc. It's not as dense as I'd have guessed. Around 0.7 g/cc. It's one of those woods that won't need pore filling - you can't see any pores! You can notice in the pics that there's a bit of faint diagonal fiddleback in the wood. I'm...
by David Aumann
Fri Feb 24, 2012 8:40 pm
Forum: Instrument Builders Forum
Topic: Help with wood identification
Replies: 25
Views: 19077

Help with wood identification

Here's a bit of wood I got from Mathews Timber in Melbourne a few years ago. It was supposed to be the last bit of a bigger plank from which veneers had been taken. It's heavy - I haven't done measurements but it's up around rosewood density. It has no smell when you scrape it. It's got spider webbi...
by David Aumann
Tue Jan 24, 2012 3:21 am
Forum: Instrument Builders Forum
Topic: Wanted: Guitar Machine Heads for Ukulele
Replies: 7
Views: 8351

Re: Wanted: Guitar Machine Heads for Ukulele

Sorry, I shouldn't write twice in a row. But I just found a picture of the back of that uke, which was also commissioned with a Fender-esque headstock. And yes, I've used four of the six Gotoh tele heads (or maybe they're Grovers) Either way, they fit alright but I think the peghead was made a littl...
by David Aumann
Tue Jan 24, 2012 3:07 am
Forum: Instrument Builders Forum
Topic: Wanted: Guitar Machine Heads for Ukulele
Replies: 7
Views: 8351

Re: Wanted: Guitar Machine Heads for Ukulele

Hello John,

Here's a pic of a uke I was asked to make a couple of years ago. From memory, I just used lightweight Gotoh Telecaster tuners, of the quick loading variety with a slot in the tuner post where a hole shoud be. (Never did work out why they call them quick loaders!)

Cheers, David.
by David Aumann
Fri Dec 30, 2011 8:37 pm
Forum: Instrument Builders Forum
Topic: My first contribution - two dreadnoughts post Ervin class
Replies: 21
Views: 22093

Re: My first contribution - two dreadnoughts post Ervin clas

Hi Rob, The tops of both guitars are built in a 30' radius dish, and the backs in a 15' radius dish. The veneer is pressed into a slight radius with a flexible caul to get even pressure over the whole area, and held in place to dry by 12 or 15 sticks in my go bar deck. I keep the top in the dish and...
by David Aumann
Fri Dec 30, 2011 12:28 pm
Forum: Instrument Builders Forum
Topic: My first contribution - two dreadnoughts post Ervin class
Replies: 21
Views: 22093

Re: My first contribution - two dreadnoughts post Ervin clas

Hello Rob, Very observant of you! There IS a veneer above the upper transverse brace. About .5 or .7 mm cross grain. Similarly, there is a cross grain patch around the soundhole, about 2 mm thick. The kauri top is taken from a lower angle and didn't have the cross grain veneer installed when I took ...
by David Aumann
Thu Dec 29, 2011 12:32 pm
Forum: Instrument Builders Forum
Topic: My first contribution - two dreadnoughts post Ervin class
Replies: 21
Views: 22093

Re: My first contribution - two dreadnoughts post Ervin clas

Yeah, I thought about it a bit before trying the assymmetrical bracing idea. I wasn't perceiving that there was actually a treble side and a bass side to the soundboard; just that if the bracing wasn't regular then there might be more different areas on the soundboard that different frequencies coul...
by David Aumann
Thu Dec 29, 2011 10:45 am
Forum: Instrument Builders Forum
Topic: My first contribution - two dreadnoughts post Ervin class
Replies: 21
Views: 22093

My first contribution - two dreadnoughts post Ervin class

Late in 2010 I spent a week with Ervin Somogyi at his Oakland workshop doing the guitar voicing class with five other builders. This last year my time has been tied up uke building, but here are two guitars recently started and using some of the know-how from Ervin's course. First is an American Bla...