Search found 30 matches

by hepikohetaniwha
Thu Feb 23, 2023 6:54 am
Forum: Instrument Builders Forum
Topic: Repairers in Darwin
Replies: 5
Views: 3544

Re: Repairers in Darwin

It’s shellac - French polished with ye olde pumice pore fill… another thing I’m curious to see the performance of in the tropics!
by hepikohetaniwha
Wed Feb 22, 2023 6:09 pm
Forum: Instrument Builders Forum
Topic: Repairers in Darwin
Replies: 5
Views: 3544

Repairers in Darwin

Hi all I recently made a guitar for a friend who promptly upped sticks and moved to Darwin. I’ve used hide glue for most of it so when he told me he was moving to the tropics I was curious to see how things would go! He messaged me the other day saying the binding was floating a bit (see attached). ...
by hepikohetaniwha
Sat Jan 22, 2022 3:45 pm
Forum: Instrument Builders Forum
Topic: Resawing, Bandsaw drift etc
Replies: 10
Views: 9586

Re: Resawing, Bandsaw drift etc

One reason why you get drift is that the gullets are filling up before they reach the bottom of the cut. The feed speed needs to be right for the tooth size and the depth of cut. Different woods have different ‘sawdust expansion factors’- that is, different woods fill the gullets at different rates....
by hepikohetaniwha
Wed Jan 29, 2020 8:18 pm
Forum: Instrument Builders Forum
Topic: Qualities of Spruce
Replies: 18
Views: 28401

Re: Qualities of Spruce

That’s a fantastic graph Dave! Thanks very much. It would be also very interesting to plot the stiffness to weight ratio against n.
by hepikohetaniwha
Wed Apr 10, 2019 10:47 am
Forum: Instrument Builders Forum
Topic: Acoustical effect of back woods
Replies: 25
Views: 31527

Re: Acoustical effect of back woods

I think I follow...

So it’s a bit like saying, in order to see if you can tell the difference between Granny Smiths and red delicious (blindfolded perhaps), then first let’s make sure you can tell the difference between apples and bananas?
by hepikohetaniwha
Tue Apr 09, 2019 7:01 pm
Forum: Instrument Builders Forum
Topic: Acoustical effect of back woods
Replies: 25
Views: 31527

Re: Acoustical effect of back woods

It’s an interesting topic, and I’m curious Peter; what would be the control that the study design omitted? A control group, in my high-school level understanding of science, is the experiment run the exact same way but without the variable that is being tested. Here the variable is back wood species...
by hepikohetaniwha
Sun Jun 04, 2017 1:31 am
Forum: Instrument Builders Forum
Topic: Titebond
Replies: 27
Views: 43003

Re: Titebond

Whelan's Wreckers (part of Delta group) stock it, in Port Melbourne (not far from west gate bridge)
by hepikohetaniwha
Thu Nov 03, 2016 2:49 pm
Forum: Instrument Builders Forum
Topic: Falbo Intension Bridge
Replies: 92
Views: 93289

Re: Falbo Intension Bridge

Maybe it amounts to the same thing... like if I take a wheel off my bi-cycle it's now a uni-cycle... if you phase align the two poles of a dipole then you have a monopole...?
by hepikohetaniwha
Thu Oct 27, 2016 10:40 pm
Forum: Instrument Builders Forum
Topic: Falbo Intension Bridge
Replies: 92
Views: 93289

Re: Falbo Intension Bridge

I have another probably quite dumb question. When I wire my lounge speakers wrong, they're 'out of phase', but this refers to the polarity of the wires. It does mean that as one speaker moves forward, the other moves back (assuming perfect amp output linearity etc). However, phase linearity of the s...
by hepikohetaniwha
Sun Oct 09, 2016 2:09 am
Forum: Instrument Builders Forum
Topic: Falbo Intension Bridge
Replies: 92
Views: 93289

Re: Falbo Intension Bridge

I was always under the impression from my old beaters that the top's distortion over time was mainly a buckling in front of the bridge from the mostly linear tension of the strings. The smaller rotational force on the bridge ensured that the buckling was a dip rather than a bulge. If you cancel the ...
by hepikohetaniwha
Mon Apr 18, 2016 10:28 am
Forum: Instrument Builders Forum
Topic: How much time does it take you to build an Acoustic?
Replies: 12
Views: 13526

Re: How much time does it take you to build an Acoustic?

Judging by what everyone is saying, the answer that you give to this question seems to be related to the answer that you would give to a previous thread, "what is handmade?" The more your guitars are 'handmade', the more time they take, perhaps. So maybe when you are asked, "are your guitars handmad...
by hepikohetaniwha
Tue Nov 03, 2015 1:11 pm
Forum: The Gallery
Topic: All Australian
Replies: 19
Views: 24436

Re: All Australian

Would love to hear how you achieved that beautiful FP in one day! :-)
by hepikohetaniwha
Fri Sep 25, 2015 11:43 am
Forum: Instrument Builders Forum
Topic: Is there any real need to chop down trees anymore?
Replies: 7
Views: 9344

Re: Is there any real need to chop down trees anymore?

It would only suit those of us with 'correct' left hand thumb position... eg not me..!
by hepikohetaniwha
Mon Aug 03, 2015 3:37 pm
Forum: Instrument Builders Forum
Topic: "Business of Lutherie" forum?
Replies: 58
Views: 50245

Re: "Business of Lutherie" forum?

That's a great idea; the Mile End Guitar Shop in Montreal are doing a similar thing I think. It might be worth getting in touch to see how they work it. https://www.facebook.com/pages/Mile-End ... 4922310026
by hepikohetaniwha
Sun Jun 07, 2015 4:24 pm
Forum: Instrument Builders Forum
Topic: Torrefied wood
Replies: 22
Views: 25578

Re: Torrefied wood

I don't know about torrefied wood but as a hack builder I can offer a triggerfied top:

Image
by hepikohetaniwha
Sun Apr 19, 2015 8:22 pm
Forum: Instrument Builders Forum
Topic: Inside an Indian shellac factory...
Replies: 11
Views: 12677

Re: Inside an Indian shellac factory...

Really interesting! Thankyou.
by hepikohetaniwha
Wed Nov 26, 2014 7:28 pm
Forum: Instrument Builders Forum
Topic: Siam Rosewood
Replies: 1
Views: 3693

Re: Siam Rosewood

Thanks, interesting read.
by hepikohetaniwha
Sat Oct 25, 2014 8:38 am
Forum: Instrument Builders Forum
Topic: Thinning boards
Replies: 33
Views: 38948

Re: Thinning boards

Two other advantages of hand planing: it is quiet, so you can listen to the radio while you work; and it creates no dust, just a pile of shavings.
by hepikohetaniwha
Tue Jul 29, 2014 5:27 pm
Forum: Instrument Builders Forum
Topic: My first hand-made rosette
Replies: 12
Views: 12129

Re: My first hand-made rosette

Really nice, cool to see such a good combination of the 'purfling' rosette with the 'inlaid pretty veneer' rosette. (for want of a better term)
by hepikohetaniwha
Mon May 26, 2014 4:13 pm
Forum: Instrument Builders Forum
Topic: grain thru binding
Replies: 13
Views: 12706

Re: grain thru binding

I've also been thinking about this lately - thinking only, so my comments are only theoretical! But if you thickness the sides to 2mm, then cut the bindings off with a blade whose kerf matches the width of the purfling, then continue to thickness the sides down to 1.5mm, then you will only need to m...
by hepikohetaniwha
Mon Oct 21, 2013 10:28 am
Forum: The Gallery
Topic: Stella Guitar
Replies: 4
Views: 7218

Re: Stella Guitar

Cheers guys (or should that be 'chur bros'), this one is my sixth attempt. I'm trying hard not to agonise over every little mistake (and there are many) but to learn from each and apply the lesson next time! Easier said than done...you experienced builders are a rare breed - I admire your mental tou...
by hepikohetaniwha
Thu Oct 17, 2013 7:12 pm
Forum: The Gallery
Topic: Stella Guitar
Replies: 4
Views: 7218

Stella Guitar

Not the old-time guitar brand, but a guitar I made for my daughter Stella! The rosette is based on 'starburst' clocks from the mid-century modern era. The top is kahikatea, sides and neck are recycled mahogany bedheads, bridge is totara, binding is kauri and the headstock veneer is Australian lancew...
by hepikohetaniwha
Tue May 28, 2013 7:37 pm
Forum: Health and Safety
Topic: Steel Stain on Skin
Replies: 7
Views: 25784

Re: Steel Stain on Skin

Thanks for the tip, I'll give it a try next time I use the scraper - the neighbours' lemon tree is just over the fence from the shed... :wink:
by hepikohetaniwha
Thu May 16, 2013 7:34 am
Forum: Instrument Builders Forum
Topic: String breakage
Replies: 11
Views: 10721

Re: String breakage

Since it's the strings in the middle that are breaking, I wonder if the radius on the saddle is too small for his right hand style. Perhaps flattening the radius would help to spread the load, so to speak, over all six strings. ..or will that mean he starts breaking all six? :)
by hepikohetaniwha
Tue May 07, 2013 8:32 am
Forum: Health and Safety
Topic: Steel Stain on Skin
Replies: 7
Views: 25784

Re: Steel Stain on Skin

That makes me feel a bit better – I googled it and couldn’t find any reference to it anywhere, so I was beginning to wonder if I was the odd one out...I was thinking about it some more after I posted and I remembered why I switched to phosphor bronze strings; because regular bronze ones got corroded...