Search found 198 matches

by Mike Thomas
Sat Sep 07, 2019 4:26 pm
Forum: Instrument Builders Forum
Topic: Bote-cote epoxy
Replies: 11
Views: 690

Re: Bote-cote epoxy

Allen, do you use TPRDA when using Bote Cote as a glue e.g. for a fretboard, as well as for pore filling?
by Mike Thomas
Mon Aug 05, 2019 6:14 pm
Forum: Instrument Builders Forum
Topic: A new book on building ukuleles
Replies: 8
Views: 1472

Re: A new book on building ukuleles

Me too!
by Mike Thomas
Thu Jun 27, 2019 9:04 pm
Forum: Instrument Builders Forum
Topic: Stew Mac shipping - warning
Replies: 26
Views: 3877

Re: Stew Mac shipping - warning

Stewmac is clearly at fault. If they say that express international is by DHL, with no qualification, then you are entitled to expect that it will be sent by DHL, even if there is no confirming information on checkout.
by Mike Thomas
Thu Jun 27, 2019 3:24 pm
Forum: Instrument Builders Forum
Topic: Stew Mac shipping - warning
Replies: 26
Views: 3877

Re: Stew Mac shipping - warning

https://www.stewmac.com/International


I just checked the Stewmac website and they are still saying express international is by DHL.
by Mike Thomas
Mon May 28, 2018 4:48 pm
Forum: Instrument Builders Forum
Topic: Reliable Hygrometer Calibration for the Luthier
Replies: 27
Views: 13388

Re: Reliable Hygrometer Calibration for the Luthier

I don't know whether the potassium carbonate I bought from BioMed Cafe is different from the stuff they are selling now, it was quite a few years back. I suspect that the difference between food grade and lab. grade is not likely to be sufficient to create significant errors for our purposes. Food g...
by Mike Thomas
Thu May 17, 2018 12:45 pm
Forum: Instrument Builders Forum
Topic: Room dehumidifiers
Replies: 11
Views: 3132

Re: Room dehumidifiers

I have a DeLonghi compressor dehumidifier in Tasmania, and it works fine in a 5 x 4 metre room which I try to keep around 45% RH. I find that I use it more in summer when it's warm, than in winter. When it's cold, I find just having a heater on brings RH down to acceptable levels. Desiccant dehumidi...
by Mike Thomas
Sun Mar 18, 2018 5:17 pm
Forum: Instrument Builders Forum
Topic: Stunning wood
Replies: 14
Views: 3883

Re: Stunning wood

Lovely wood. And flamed maple has a long and distinguished history in luthiery. Is that 0.6mm veneer, Steve?
by Mike Thomas
Tue Dec 05, 2017 9:06 pm
Forum: Instrument Builders Forum
Topic: Luthier tips du jour - Inlay tool tip
Replies: 6
Views: 2388

Re: Luthier tips du jour - Inlay tool tip

I don't think there would be an overheating problem for these small diameter bits. At 60,000 rpm the cutting edge of a 1/32" bit travels at the same speed as a 1/16" bit at 30,000 rpm, i.e. Dremel speed. I don't think carbide bits of that size or larger (e.g. 1/8") overheat when using a Dremel, so 1...
by Mike Thomas
Tue Sep 26, 2017 1:14 pm
Forum: Instrument Builders Forum
Topic: Sending veneer to Oz
Replies: 11
Views: 6172

Re: Sending veneer to Oz

I have had several veneer imports by post from both India and America, with no customs or quarantine issues. The Indian packages were large, several kilos, and very rustically packed, but seem to have excited no interest by the Australian authorities. This was about 6 years ago, so things may have c...
by Mike Thomas
Sat Sep 02, 2017 8:22 pm
Forum: Instrument Builders Forum
Topic: Vacuum molding
Replies: 28
Views: 9963

Re: Vacuum molding

I had no problems laminating backs (and sides) using .8mm veneer, dry, without any preforming. The recurve on an archtop may present problems, however. If I were to try it, I would start with an inside mould which also modelled the recurve. In order to get the vacuum to press the veneer stack into t...
by Mike Thomas
Sat Sep 02, 2017 5:59 pm
Forum: Instrument Builders Forum
Topic: Vacuum molding
Replies: 28
Views: 9963

Re: Vacuum molding

Laminated Back.JPG Vacuum Bagging Back.JPG Fibreglass Back Mould.JPG The photos show how I laminated a Selmer/ Maccaferri back. I made an internal fibreglass mould on an MDF backing. Three plies of .8mm veneer (Blackwood/Poplar/Mahogany) were glued together using West Systems Epoxy in a vacuum pres...
by Mike Thomas
Sun Aug 20, 2017 10:59 am
Forum: Instrument Builders Forum
Topic: cheap shopvac with power takeoff
Replies: 7
Views: 3817

Re: cheap shopvac with power takeoff

My experience with shopvacs like these connected to sanding machines they just put the fine dust into the air....
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Should still be useful with a router.
by Mike Thomas
Thu Jan 26, 2017 10:06 am
Forum: Instrument Builders Forum
Topic: Stiffening spruce with UVA
Replies: 9
Views: 3662

Re: Stiffening spruce with UVA

Violin maple back.JPG Violin spruce top.JPG Violin back tanned untanned contrast.JPG A couple of pictures of a violin I made a some years ago. I hung it out in the Hobart sun for a few days, purely to get some colour. The last picture shows the contrast between the tanned back and an untanned offcu...
by Mike Thomas
Wed Dec 21, 2016 11:21 am
Forum: The Gallery
Topic: Blackwood and Sitka Tenor
Replies: 6
Views: 3350

Re: Blackwood and Sitka Tenor

Being a Selmer fan, I really like the oval sound hole. It adds to the art deco aesthetic. You have an authentic talent for beautiful design.
by Mike Thomas
Thu Dec 15, 2016 4:52 pm
Forum: The Gallery
Topic: 2 new soprano's
Replies: 8
Views: 4870

Re: 2 new soprano's

They do, however, share the compound radius, despite the size difference. A much smaller radius at the pointy end than at the sound hole end.
by Mike Thomas
Fri Aug 26, 2016 7:35 pm
Forum: Instrument Builders Forum
Topic: Completely traditional looking Hauser style classical guitar
Replies: 45
Views: 18974

Re: Completely traditional looking Hauser style classical guitar

I'll bet you've got some gems in your wood stash you've forgotten about :D
by Mike Thomas
Tue Jan 12, 2016 5:51 pm
Forum: Instrument Builders Forum
Topic: bridge repair hobart
Replies: 8
Views: 7269

Re: bridge repair hobart

Paul Mineur should do a good job. And he is right in North Hobart, on Argyle Street.
by Mike Thomas
Sun Jul 05, 2015 8:00 pm
Forum: Instrument Builders Forum
Topic: Fretboard Inlay
Replies: 21
Views: 10909

Re: Fretboard Inlay

K & S brass tubing sold in most hobby shops comes in metric sizes. The 5mm o/d tube fits snugly into the 6mm tube, and has a 4.1mm i/d.
by Mike Thomas
Fri Jul 03, 2015 4:45 pm
Forum: Instrument Builders Forum
Topic: Fretboard Inlay
Replies: 21
Views: 10909

Re: Fretboard Inlay

It would also need to be done in some sort of mill drill though as the diamond drill has no pilot so unless you had an accurate way of holding it centrally, the chances of drilling the middle out off centre would be high! You could probably get around this by having two bonded drill bits, one 4mm o...
by Mike Thomas
Fri Apr 10, 2015 7:50 pm
Forum: Anything Goes
Topic: Good music from cheap instruments
Replies: 2
Views: 1871

Re: Good music from cheap instruments

That's right Nick. It is not absolutely essential to have a 1935 Selmer to play Django like, nor a Gibson L4 to be reminded of Eddie Lang. Nor a Selmer or Conn sax to play authentic sounding jazz of the era. Although I believe Charlie Parker and Ornette Coleman played Grafton plastic altos when they...
by Mike Thomas
Wed Apr 08, 2015 12:55 pm
Forum: Anything Goes
Topic: Good music from cheap instruments
Replies: 2
Views: 1871

Good music from cheap instruments

https://soundcloud.com/iandate/wailin-blues

Ian Date playing an old plywood Alver Maton; Tom Baker playing a plastic Grafton alto sax. According to Ian Date, recorded around one ribbon mike on an old ABC reel to reel tape recorder.
by Mike Thomas
Thu Mar 12, 2015 4:49 pm
Forum: The Gallery
Topic: Corasón after Joseph DiMauro the elder
Replies: 10
Views: 4566

Re: Corasón after Joseph DiMauro the elder

Just a question out of interest Craig. Is there a reason for "Corason" rather than the Spanish "Corazon"? Please excuse the lack of an accent over the "o".
by Mike Thomas
Wed Mar 11, 2015 7:21 pm
Forum: The Gallery
Topic: Corasón after Joseph DiMauro the elder
Replies: 10
Views: 4566

Re: Corasón after Joseph DiMauro the elder

Yes, it's certainly a beautiful looking instrument Craig. I love the aesthetic of the Selmers, but this is a considerable step beyond, without losing the gypsy jazz identity. I suspect Django would have loved it. It only remains for you to let us know what it sounds like.
by Mike Thomas
Sun Dec 21, 2014 10:01 pm
Forum: Instrument Builders Forum
Topic: Jet 10-20 conveyor belts
Replies: 42
Views: 16386

Re: Jet 10-20 conveyor belts

Mine arrived safely too. Also on a Sunday. Must be because it's Christmas. A very large thank you for organizing this Jeff.
by Mike Thomas
Wed Dec 17, 2014 8:43 pm
Forum: Instrument Builders Forum
Topic: An Australian Luthier in Paris
Replies: 23
Views: 9289

Re: An Australian Luthier in Paris

Bob, it looks like you were outside Francois Charle's shop in the Galerie Vero-Dodat. His book, " The Story of Selmer Maccaferri Guitars" is to date the definitive treatment of the history of these guitars, and gives a real insight into the detail of their construction. http://www.rfcharle.com/HTML/...