Search found 162 matches

by Chris Reed
Thu May 16, 2013 1:16 pm
Forum: Archtop Guitars and Bass Guitars
Topic: Reboot - Steam-bending Tops
Replies: 16
Views: 9993

Re: Reboot - Steam-bending Tops

I've just started bending my ukulele backs, and I worked by clamping the back into a form for the desired shape and then simply piling on sandbags heated in the oven to around 150C. Leave to cool, and you have bent wood. http://farm9.staticflickr.com/8407/8701723487_8a76aeb6cf.jpg The string didn't ...
by Chris Reed
Tue May 07, 2013 1:17 pm
Forum: Ukuleles
Topic: Ukulele neck reinforcement query.
Replies: 3
Views: 2878

Re: Ukulele neck reinforcement query.

I think stability is the key - I've seen ukes with warped necks, but never one with a bow from string tension. And the last 6 months in Scotland should have covered off all the weather changes which might lead to warping. But if anyone chimes in with different advice, at least consider it. I've only...
by Chris Reed
Tue May 07, 2013 4:48 am
Forum: Ukuleles
Topic: Ukulele neck reinforcement query.
Replies: 3
Views: 2878

Re: Ukulele neck reinforcement query.

Not needed, unless you suspect you have unusually feeble neck wood or want to make a very low profile neck. Some of the very top end makers use CF reinforcement, but primarily to counter any movement of the wood as humidity changes rather than to resist the string tension, which is low for all ukes....
by Chris Reed
Thu Apr 11, 2013 12:08 pm
Forum: Flat-Top Acoustic Guitars and Bass Guitars
Topic: better strings for shorter scale???
Replies: 6
Views: 2020

Re: better strings for shorter scale???

23 inches is pretty much tenor guitar/banjo size, so you should be able to find a set for Chicago tuning (DGBE). This gives you the dimensions for the top four strings - something like 11/13/18/24. Then you need to extrapolate to find your A and low E dimensions and buy them as single strings.
by Chris Reed
Mon Mar 25, 2013 2:38 pm
Forum: Flat-Top Acoustic Guitars and Bass Guitars
Topic: Pine For Side Bending Practice?
Replies: 13
Views: 3549

Re: Pine For Side Bending Practice?

There should be a model-making shop around Dublin which sells 1/16 inch mahogany panels. These are something like 36x4 inches, and about £5 in the UK. I've made a uke from one of these panels (picking out one which was pretty much on the quarter with straight grain) and it sounded pretty good. Not s...
by Chris Reed
Mon Mar 25, 2013 2:31 pm
Forum: Flat-Top Acoustic Guitars and Bass Guitars
Topic: Neck removal, unusual joint
Replies: 20
Views: 5913

Re: Neck removal, unusual joint

Good news! And not casein glue after all, which is further good news.
by Chris Reed
Fri Mar 01, 2013 4:46 pm
Forum: Other Stringed Instruments
Topic: It's Not A Guitar, It's Got Strings..Put it Here
Replies: 21
Views: 8987

Re: It's Not A Guitar, It's Got Strings..Put it Here

Chris, that little tiny cigar box is more of a novelty. 'Ukulele sizes have been standardized for quite some time (Soprano ~13", Concert ~15", Tenor 17", Baritone 19"). Well, I have built more sopranos than baby ukes (that one is half of a duelling pair, as someone once described them). And one con...
by Chris Reed
Wed Feb 13, 2013 6:20 am
Forum: Glues and Finishes
Topic: Casein Resin Glue
Replies: 20
Views: 9686

Re: Casein Resin Glue

I've asked the UK glider repair community if anyone has a casein-glued joint that they've cut from an aircraft when replacing timber. If I get one, I'll try to disassemble it, re-glue it and send it to Craig for testing.
by Chris Reed
Mon Feb 11, 2013 6:25 pm
Forum: Glues and Finishes
Topic: Casein Resin Glue
Replies: 20
Views: 9686

Re: Casein Resin Glue

Craig, The posts on gliderpilot.net from experienced repairers seem to confirm that the bonding problem is the alkaline residue of casein, and that they resolve this by using Aerolite hardener to produce a neutral surface. The question is whether luthier glues would adhere to this surface, which I g...
by Chris Reed
Sat Feb 09, 2013 12:26 pm
Forum: Glues and Finishes
Topic: Casein Resin Glue
Replies: 20
Views: 9686

Re: Casein Resin Glue

I hadn't realised it was water-resistant - I guess the problem was fungi and bacteria eating the glue from gliders stored in damp conditions. The DIY version seems very easy - skimmed milk powder, vinegar and baking soda. http://manna-in-the-wild.hubpages.com/hub/woodworking-how-to-make-your-own-str...
by Chris Reed
Fri Feb 08, 2013 11:05 am
Forum: Glues and Finishes
Topic: Casein Resin Glue
Replies: 20
Views: 9686

Re: Casein Resin Glue

My only experience is as a glider pilot (and that anecdotal, I'm pleased to say). Many of the pre-war wooden gliders used casein glue, and this holds well until moisture gets into the joint at which point it can be time to learn to use a parachute! So I'd guess steam and/or a hot knife would separat...
by Chris Reed
Fri Nov 23, 2012 5:48 pm
Forum: Glues and Finishes
Topic: First try at HHG
Replies: 12
Views: 6251

Re: First try at HHG

Just try using a hair dryer to keep the wood above the temperature at which the HHG gels. If the wood feels a little hot to your hand (not HOT!) that's about right.
by Chris Reed
Wed Oct 31, 2012 7:48 pm
Forum: Other Stringed Instruments
Topic: Banjo-Ukes
Replies: 2
Views: 2464

Re: Banjo-Ukes

I've made a handful of simple banjo ukes by making necks and attaching them to a tunable hand drum. These work surprisingly well, and you need to step up to far more advanced construction to get much more in the way of improved tone (if such a thing exists for the banjo uke :D ). The impression I ge...
by Chris Reed
Wed Oct 17, 2012 7:43 am
Forum: Flat-Top Acoustic Guitars and Bass Guitars
Topic: Rosewood bridge and hide glue
Replies: 24
Views: 12619

Re: Rosewood bridge and hide glue

Chris, do you have a straight edge long enough to span the fingerboard? I use a straight edge and feeler gauges to determine the relief, and also a fret rocker to find any uneven frets. You must get the frets on the same plane or you are giving up the playability. I know all that now ! I even knew ...
by Chris Reed
Tue Oct 16, 2012 7:04 pm
Forum: Flat-Top Acoustic Guitars and Bass Guitars
Topic: Rosewood bridge and hide glue
Replies: 24
Views: 12619

Re: Rosewood bridge and hide glue

The bridge is back on, using hide glue again. I scraped both surfaces immediately before glueing, putting a slight curve in the bridge underside, heating to increase open time, and using 3 bridge clamps rather than the single I used first time. To the naked eye the joint looks better than previously...
by Chris Reed
Tue Sep 11, 2012 2:04 pm
Forum: Flat-Top Acoustic Guitars and Bass Guitars
Topic: Redwood top failure?
Replies: 26
Views: 10746

Re: Redwood top failure?

Would it be any use trying CA to reattach the brace? It seems to penetrate a little way into the wood, which might help stop this peeling. If the brace is only separated in places, running some CA into the gap and clamping can be done without removing the top. I've fixed a loose section of uke braci...
by Chris Reed
Sun Sep 02, 2012 4:25 pm
Forum: Solid-Body and Chambered or Semi-Solid Electric Guitars and Bass Guitars
Topic: Measuring frets for multi-scale bass
Replies: 5
Views: 3224

Re: Measuring frets for multi-scale bass

I'd say (b), with a fairly large helping of (c). The centre of the string is clearly the right answer (that's the average length of the string, shorter one side, longer the other). Also you can work out your potential error. Assume your thickest string is at the 35" side, and 1/4" wide. Assume spaci...
by Chris Reed
Sun Sep 02, 2012 10:09 am
Forum: Flat-Top Acoustic Guitars and Bass Guitars
Topic: Rosewood bridge and hide glue
Replies: 24
Views: 12619

Re: Rosewood bridge and hide glue

Thanks for the well-known trick (which I hadn't yet come across). I'll use a single-sided razor blade as the bridge width is less than 1 inch.

As for Mario's list of sins, I probably committed them all. Will try harder next time.
by Chris Reed
Fri Aug 31, 2012 1:34 pm
Forum: Flat-Top Acoustic Guitars and Bass Guitars
Topic: Rosewood bridge and hide glue
Replies: 24
Views: 12619

Re: Rosewood bridge and hide glue

Thanks all. I think I'll go for option 2, and take the opportunity to refinish the top at the same time. This wasmy first attempt at a shellac finish and it's along way from what I can achieve a few builds later. If the bridge goes again, then it's bye-bye rosewood for this one. Here's a picture of ...