Search found 679 matches

by Mark McLean
Sat Dec 15, 2018 2:36 pm
Forum: Instrument Builders Forum
Topic: Go-bar rods
Replies: 6
Views: 45

Re: Go-bar rods

I use bamboo. I bought some bamboo screening at Bunnings, which is multiple lengths of bamboo laced together with light wire. Cut the wire and I ended up with dozens of usable go bar rods for about $9. I bought little rubber caps to put on each end (also Bunnings). There are white caps and black. Th...
by Mark McLean
Wed Dec 12, 2018 6:46 am
Forum: Instrument Builders Forum
Topic: White purfling strip
Replies: 12
Views: 276

Re: White purfling strip

pic 9.JPG
pic 9.JPG (205.15 KiB) Viewed 85 times
This is maple veneer as purfling with cocobolo binding strips. Very simple to cut from sheets with scissors. Glues, scrapes and sands well. I bought it in Sydney. I am sure you would find a supplier in Adelaide.
by Mark McLean
Fri Dec 07, 2018 7:38 pm
Forum: Instrument Builders Forum
Topic: Disaster?
Replies: 15
Views: 641

Re: Disaster?

Yes, I know you feel bad. We have all done things like this that are a mistake born out of fatigue or stress, and should have been preventable. But I agree with John that this is entirely fixable. All of your trouble is in that narrow slot, and it is entirely reasonable to glue some material in ther...
by Mark McLean
Fri Dec 07, 2018 7:18 am
Forum: Instrument Builders Forum
Topic: Bridge gluing
Replies: 19
Views: 990

Re: Bridge gluing

It might have been a locating pin. Any sign of a pice of dowel that used to be in that spot? Some makers also used a bolt to secure the aft side of the bridge.
by Mark McLean
Sun Dec 02, 2018 10:10 pm
Forum: The Gallery
Topic: Nice bit of Gidgee
Replies: 8
Views: 594

Re: Nice bit of Gidgee

The gidgee looks sensational. Did it fight you in bending, or any other comments on working with it?
by Mark McLean
Mon Nov 26, 2018 7:39 pm
Forum: The Gallery
Topic: Flamenco Negra
Replies: 5
Views: 364

Re: Flamenco Negra

Steve it looks like a beauty. I loved seeing your workshop on the weekend but I wish I had been there a couple of days earlier so i could have seen that one. Lovely looking rosette. It is great that you are getting some high profile commissions. The word of mouth will probably be very effective prom...
by Mark McLean
Sat Nov 24, 2018 8:35 pm
Forum: Instrument Builders Forum
Topic: Acacia dread build thread
Replies: 101
Views: 3906

Re: Acacia dread build thread

There is nothing more satisfying than looking at a fresh-sanded rosette.
And I am stealing that idea for squaring up and spacing the back braces. Nice one.
by Mark McLean
Wed Nov 21, 2018 5:41 am
Forum: Instrument Builders Forum
Topic: Top slighly dipping between braces of 70s Sadao Yairi Classical
Replies: 14
Views: 494

Re: Top slighly dipping between braces of 70s Sadao Yairi Classical

Like Martin said, if you want to lift the "sagging" bit of soundboard between the braces and keep it in contact with the bottom of the bridge during gluing, nothing will do that as effectively as a long throat bridge clamp and a caul on the inside. It would be be best to have three clamps (if you ca...
by Mark McLean
Mon Nov 19, 2018 10:35 pm
Forum: Instrument Builders Forum
Topic: Top slighly dipping between braces of 70s Sadao Yairi Classical
Replies: 14
Views: 494

Re: Top slighly dipping between braces of 70s Sadao Yairi Classical

Hi Deleted (do you have a real name?), What you are describing is called "telegraphing" of the braces. It tends to happen in bracing patterns like this one where the braces are running parallel (or close to parallel) with the grain of the soundboard, and if the soundboard is thin and flexible. In es...
by Mark McLean
Mon Nov 19, 2018 5:54 am
Forum: Instrument Builders Forum
Topic: Lathe neck carving
Replies: 2
Views: 241

Re: Lathe neck carving

That does look cool, and fast. But when I am building for myself, and time is of no concern, I find that hand carving a neck is one of the most enjoyable parts of the build.

It is good to see you up and running in your new place Nigel.
by Mark McLean
Fri Nov 16, 2018 10:12 am
Forum: The Gallery
Topic: Blackwood Baritone Uke - Video Gallery
Replies: 3
Views: 276

Re: Blackwood Baritone Uke - Video Gallery

The new video format is pretty fancy. A nice way to show them off. The uke is fantastic too!
by Mark McLean
Fri Nov 16, 2018 10:11 am
Forum: The Gallery
Topic: Bunya/Sheaok - best AU woods Classical
Replies: 6
Views: 378

Re: Bunya/Sheaok - best AU woods Classical

Now that is a beautiful looking classical guitar. Nice mix of the local timbers. Thanks for showing it off!
by Mark McLean
Sat Nov 10, 2018 10:59 pm
Forum: Instrument Builders Forum
Topic: 8 String bocote falcate braced nylon string crossover guitar
Replies: 17
Views: 1914

Re: 8 String bocote falcate braced nylon string crossover guitar

Agree - the blonde looks much better. Great to see this troublesome one finished!
by Mark McLean
Fri Nov 09, 2018 7:46 am
Forum: Instrument Builders Forum
Topic: Maple or Sycamore for purfling
Replies: 9
Views: 585

Re: Maple or Sycamore for purfling

Dave M wrote:
Thu Nov 08, 2018 8:31 am
Or am I thinking too much and should just get on with it!
Yep

But it sounds like it is going to be nice. Love walnut
by Mark McLean
Thu Nov 01, 2018 5:43 am
Forum: The Gallery
Topic: Multiscale 7 string with a difference
Replies: 7
Views: 508

Re: Multiscale 7 string with a difference

Lovely built, stunning paintwork!
by Mark McLean
Tue Oct 30, 2018 10:50 pm
Forum: Instrument Builders Forum
Topic: October, yes October tutes
Replies: 10
Views: 707

Re: October, yes October tutes

OK. I am glad that I am not the only one who needs to clean up glue squeeze-out! I did a vacuum clamping of a bridge tonight, with HHG. After 12 minutes of clamping I took the vacuum off and cleaned up the glue with hot water, soft cloth and a pointy stick. It took about a minute as the squeeze-out ...
by Mark McLean
Tue Oct 30, 2018 6:16 am
Forum: The Gallery
Topic: 8 string baritone
Replies: 8
Views: 533

Re: 8 string baritone

Lovely instrument Jim. I built an 8 string also and love the 12-string lite feel and sound. Tell us about the bracing that you used. Did you make it any heavier for the extra couple of strings? I also like the partial rosette style. Did you use CNC (like Allen does) or is that some fancy work by han...
by Mark McLean
Tue Oct 30, 2018 6:12 am
Forum: Instrument Builders Forum
Topic: October, yes October tutes
Replies: 10
Views: 707

Re: October, yes October tutes

Thanks Steve. Nice demos, as usual.

No glue squeeze-out with your vacuum clamping pictorial?
by Mark McLean
Sun Oct 28, 2018 9:35 am
Forum: The Gallery
Topic: Lutz and Blackwood classical
Replies: 13
Views: 3155

Re: Lutz and Blackwood classical

The lutz has taken on a nice golden glow. It is great to see how well it has developed. Has the sound changed much in six years?
by Mark McLean
Fri Oct 26, 2018 10:10 am
Forum: Instrument Builders Forum
Topic: Bridge gluing
Replies: 19
Views: 990

Re: Bridge gluing

Take a look at the pictorial tute by Simso also

http://www.mirwa.com.au/HTS_Bridge_Removal.html
by Mark McLean
Fri Oct 26, 2018 9:34 am
Forum: Instrument Builders Forum
Topic: Bridge gluing
Replies: 19
Views: 990

Re: Bridge gluing

You need to be fussing about with clamps and checking that it is staying in position - so cleaning out the holes is not going to be a priority at the time. Do it like Martin said and clean that later (pin hole reamer is my recommendation). You have an issue with some of the top ply coming off outsid...
by Mark McLean
Wed Oct 24, 2018 3:15 pm
Forum: Instrument Builders Forum
Topic: How secure is binding?
Replies: 8
Views: 540

Re: How secure is binding?

Yep - bindings falling off are not likely to be a problem, and can be pretty easily fixed. But the kind of surgery you are contemplating is likely to be ugly, and not disguisable. You can reshape a solid body electric as much as you like. It is just a lump of wood with some electrical equipment bolt...
by Mark McLean
Fri Oct 19, 2018 3:02 pm
Forum: Instrument Builders Forum
Topic: Multiscale bridges
Replies: 5
Views: 488

Re: Multiscale bridges

Thinking about this a bit more I realized another reason why Lowden probably do that shape for their multiscale bridge - it keeps the bridge wings in the usual location so that there is no change in the relationship of the bridge wings to the underlying braces. Martin showed us in his build that he ...
by Mark McLean
Fri Oct 19, 2018 9:24 am
Forum: Instrument Builders Forum
Topic: Multiscale bridges
Replies: 5
Views: 488

Re: Multiscale bridges

Good topic Dave. I am working through a multiscate build at the moment and wrestling with the same problem. Our human brains are very attuned to the appearance of symmetry, and our notions of beauty versus "doesn't look right" are really hung up on this attribute. For example, when humans rank the s...
by Mark McLean
Tue Oct 09, 2018 8:22 pm
Forum: Instrument Builders Forum
Topic: ??? Glues and high pressure laminate
Replies: 14
Views: 976

Re: ??? Glues and high pressure laminate

It looks rather like a CF fabric, and so I would be hoping that epoxy would work well with it. Hey Ross - thanks for that very illuminating outline of the principles of thixotrophy (especially the example of shaving cream - got it straight away). And I am about to rebuild a guitar body made with HPL...