Search found 1443 matches

by Michael Lewis
Sat Jan 18, 2020 2:42 am
Forum: String Instrument Repair: Practical and Political Issues
Topic: Crack repair
Replies: 8
Views: 5423

Re: Crack repair

Hot hide glue and rub it in. A bit too late for that now. A serious point about cracks under finish: hide glue shows the least of any glue. CA can make a structural repair, but is more difficult to camouflage. The issue with the CA is it is nearly impossible to reverse it without seriously damaging ...
by Michael Lewis
Sat Jan 11, 2020 5:19 am
Forum: String Instrument Repair: Practical and Political Issues
Topic: Can this live again? 1941 Epiphone Triumph
Replies: 53
Views: 28359

Re: Can this live again? 1941 Epiphone Triumph

The granular texture of the metal at the crack is due to work hardening and fatigue. The crack is only part of the condition, but it should become annealed (made 'dead soft') if you use silver solder. Lots of tail pieces have cracked like this, they need to be annealed to prevent the metal from deve...
by Michael Lewis
Sat Jan 11, 2020 4:37 am
Forum: String Instrument Repair: Practical and Political Issues
Topic: Alvarez “bridge”
Replies: 11
Views: 4559

Re: Alvarez “bridge”

Is there a pick up involved? Putting a hardwood cap on the bridge plate can reduce the tone and volume quality. I heartily agree with the StewMac Bridge Saver tool to save the bridge plate. If this guitar has been like this for 16 years why do anything to it? The design looks to be rather difficult ...
by Michael Lewis
Sat Jan 04, 2020 2:09 am
Forum: String Instrument Repair: Practical and Political Issues
Topic: Need bridge thickness for 76 Gibson J-45/50
Replies: 6
Views: 2918

Re: Need bridge thickness for 76 Gibson J-45/50

Most Gibson bridges I have seen are 1/4" thick. Martin are 5/16" now, used to b e 3/8".
by Michael Lewis
Sat Jan 04, 2020 1:29 am
Forum: String Instrument Repair: Practical and Political Issues
Topic: Restoration of a 1931 Martin 00-17
Replies: 201
Views: 56318

Re: Restoration of a 1931 Martin 00-17

I love the 0, 00, and 000 Martins. Most are wonderful players, or can be if set up properly. This is a really good thread, thanks.
by Michael Lewis
Fri Jan 03, 2020 2:30 am
Forum: String Instrument Repair: Practical and Political Issues
Topic: Restoration of a 1931 Martin 00-17
Replies: 201
Views: 56318

Re: Restoration of a 1931 Martin 00-17

Yes, I read all that, and it made me think about some of the jobs I have done on really far gone instruments. Did you ever get one in a paper bag? But the point is the feeling you get when the job is complete and presented to the customer, and (s)he begins glowing about it. When you get an instrumen...
by Michael Lewis
Thu Jan 02, 2020 2:54 am
Forum: String Instrument Repair: Practical and Political Issues
Topic: Restoration of a 1931 Martin 00-17
Replies: 201
Views: 56318

Re: Restoration of a 1931 Martin 00-17

Gentlemen, I just stuck my nose in here and found this thread, so I have been reading for the last hour to catch up on this project. Having had some experience with Martin as a Service Center for 20 years, and old guitars, especially Martins, I must say BRAVO! to your efforts and results. That being...
by Michael Lewis
Thu Feb 23, 2017 4:53 am
Forum: The Soundhole
Topic: National Statistics for Luthier Wages
Replies: 12
Views: 18541

Re: National Statistics for Luthier Wages

In reality, one needs to have the skills to do excellent work in order to demand good 'wages'. I started out by making an instrument and thought that was how I would make my living, but Reality rushed in and told me that I needed better skills, a better work ethic, someone to sell, and a bookkeeper....
by Michael Lewis
Tue May 31, 2016 2:22 am
Forum: Archtop Guitars and Bass Guitars
Topic: Rebuild Project - Question about Forms and Fit
Replies: 14
Views: 8966

Re: Rebuild Project - Question about Forms and Fit

By replacing the binding the whole 'equation' is changed. Fit the parts together in a workman like manner, rout for the new bindings and move ahead. As Barry mentions, finish is easily effected by the solvents in most glues, so extra care is needed unless you use a water based glue like Titebond. Fo...
by Michael Lewis
Tue May 31, 2016 1:50 am
Forum: Flat-Top Acoustic Guitars and Bass Guitars
Topic: perfect rib seam at tailblock
Replies: 16
Views: 9092

Re: perfect rib seam at tailblock

Late to the party again . . . . I have done this for my archtop guitars and mandolins, and my method is reasonably foolproof. I glue the neck block to the sides first, when that is dry I overlap one side over the other at the end of the body. Here I make sure to clamp the sides firmly to the outside...
by Michael Lewis
Sat May 28, 2016 3:33 am
Forum: Flat-Top Acoustic Guitars and Bass Guitars
Topic: Lacquer Defect
Replies: 4
Views: 3299

Re: Lacquer Defect

Newer lacquer shrinks more than older lacquer, and as long as there is ANY solvent left in the finish it will shrink when the solvent leaves. If you can smell it it will shrink. You really need more time, weeks, not days.
by Michael Lewis
Sat May 28, 2016 3:12 am
Forum: Archtop Guitars and Bass Guitars
Topic: Rebuild Project - Question about Forms and Fit
Replies: 14
Views: 8966

Re: Rebuild Project - Question about Forms and Fit

Eric, try to get the sides to meet the back evenly EVERYWHERE at the same time. It may take a bit of slight shimming here and there to push the sides in to meet the binding on the back. You have enough shop experience to know what needs to be done, and to figure out how to get it done. You really do...
by Michael Lewis
Sat May 28, 2016 2:55 am
Forum: Archtop Guitars and Bass Guitars
Topic: Strings for Catherine
Replies: 3
Views: 3980

Re: Strings for Catherine

The Tomastik flatwounds are great but rather expensive. Also very nice flatwounds are from La Bella, very similar to the Tomastik and a bit less expensive. Made in USA too.
by Michael Lewis
Wed May 11, 2016 3:29 am
Forum: Archtop Guitars and Bass Guitars
Topic: Introduction and a Rebuild Project
Replies: 10
Views: 9780

Re: Introduction and a Rebuild Project

A few years ago I had an Epiphone Broadway from the same era in my shop in slightly better condition than this one. I tried saving the flaking finish by spraying lacquer thinner on it to melt it back onto the wood but it was not soluble in lacquer thinner. It turned out to be an oil varnish, which r...
by Michael Lewis
Wed May 11, 2016 3:14 am
Forum: Archtop Guitars and Bass Guitars
Topic: making an ultra-light archtop.
Replies: 7
Views: 7216

Re: making an ultra-light archtop.

Steve Andersen has made some rather light weight archtops with a big bass response, and an oval sound hole in the upper bout. You might look into some of his well regarded work. The dynamic response and tone of a "traditional" archtop is achieved by using traditional specs. By changing arching, plat...
by Michael Lewis
Wed May 11, 2016 2:45 am
Forum: Flat-Top Acoustic Guitars and Bass Guitars
Topic: Cupping on acoustic guitar back
Replies: 6
Views: 4062

Re: Cupping on acoustic guitar back

As pointed out you have a humidity control issue. Your top and back plates need to be well dry when the bracing is glued on, and really try to avoid introducing any more moisture to them than is in the glue. It can help to warm them with a hair drier for a minute or so just before gluing the braces....
by Michael Lewis
Mon Apr 25, 2016 2:15 am
Forum: Flat-Top Acoustic Guitars and Bass Guitars
Topic: Age and Model of this Kay
Replies: 3
Views: 2987

Re: Age and Model of this Kay

Is there actually a truss rod under that cover?
by Michael Lewis
Mon Apr 25, 2016 1:52 am
Forum: Flat-Top Acoustic Guitars and Bass Guitars
Topic: The others, as threatened... I mean promised...
Replies: 9
Views: 6435

Re: The others, as threatened... I mean promised...

Ryan, make what makes you happy. By the way, archtops are not so hard, they are just more work than a flat tops, and they are different 'animals'.
by Michael Lewis
Sun Apr 10, 2016 12:11 am
Forum: Flat-Top Acoustic Guitars and Bass Guitars
Topic: Martin D25-K finish question
Replies: 9
Views: 6092

Re: Martin D25-K finish question

You are dealing with nitro lacquer. Take a small brush and apply lacquer thinner to the "numbers" before doing anything else. this will let you know how much of the disturbance is in the finish and how much is in the wood. This will probably darken the numbers temporarily as the thinner penetrates t...
by Michael Lewis
Wed Apr 06, 2016 3:05 am
Forum: Glues and Finishes
Topic: Spraying new lacquer over old
Replies: 7
Views: 5838

Re: Spraying new lacquer over old

I usually scuff sand and clean the surface and just before spraying lacquer, spray a light but wet coat of thinner on the old lacquer, then give it a few minutes to evaporate and soak in before the new wet lacquer goes on. You need to spray enough to make the surface wet but no more or you risk runs...