In school we used to learn about conic or cylindrical sections in geometry classes. I am not sure if it is taught anymore. The intersection of a straight plane with a cylinder will produce a...
In school we used to learn about conic or cylindrical sections in geometry classes. I am not sure if it is taught anymore. The intersection of a straight plane with a cylinder will produce a...
A soldering gun is an electro magnet and if in close proximity to a magnet will demagnetize a magnet. That is why you always use a pencil iron to solder an magnetic pickup.
The use of CA will make a correct repair impossible.
I am not a luthier but if it were me and I had a luthier who I trust I would leave it to him or her vs. any DIY repairs. A competent person can assess any issues to start with. Anyway, that is just...
There is a modern school of classical guitar builders who use a balsa/carbonfiber lattice for soundboard bracing. The CF is top and bottom of the balsa making it like an I beam, rather than...
204033
Steam can get "anywhere" when it comes to wood.
I have not tried the technique, but it has been done successfully.
A similar method (and to me, one that makes more sense) is to glue, dry and clamp...
Wonderful green back on that Condino proto!
I think innovation, in design, materials and fabrication is limited by cost, but also by the inertia in the marketplace. Neck joints, being invisible...
To do it right, perhaps +/- $200, maybe a bit less if the pulled-out area will move back into shape without too much coercion.
That's using hot hide glue for the repair.
If you haven't already done...
A post about a 1920s Stromberg-Voisinet mandolin a few weeks back reminded me that I had traced the body and head outline when I did a bit of work on one a few years ago. So here is perhaps the first...
OK, first the good news: what you have there is a Ceccherini (I'm sure you know that already), they are very nice sounding instruments, and in fact the one bowl back I've kept for myself is more or...
This is my most recent spruce patch repair, on a 1945 D-28 with a long history in Folk/Bluegrass. The hole through the top was 1/4" bigger than the bridge, all the way around. Previous repair from...
That is the original Indian rosewood bridgeplate, which is 3 1/4" wide. Those began in 1969 on dreadnoughts. Indian rosewood turns out to be a poor choice for bridgeplates. Chips and cracks between...
If that pickguard is celluloid and I'm pretty sure it is then you need to understand that it is highly flammable with a low flash point.
I know of one repairman who took out old bridgeplates with a finger plane.
I tried it once, and gave up after an hour. Fortunately, the scars on my forearm were not permanent.
Standard procedure...
At this point, anything you do will likely be an improvement.
If the rest of the guitar is in similar condition to what you've shown, it should be fairly simple to carefully remove the back...
Some technical information:
Rosewood bridgeplates were factory original equipment from 1968 until 1988 on production line Martins, except for HD-28's and HD-35's.
Most of the rosewood...
I believe you may have already hit upon a successful method for dealing with the situation - subconsciously, unknowingly, perhaps wistfully. Applying the knife effectively to the piper's bag should...
I'm not experienced with fish glue, but from what I understand it is similar to hide glue when dried, although perhaps more hygroscopic. It may be very difficult to release the back without damage....
Frederick Winslow was a mandoline player and teacher who lived in Swindon, south of England near London. Before forming the Serenaders Mandolin Orchestra he led a mandolin 'quartette' that promoted J...
Adrian
When we replant, the areas that are being replanted will get a mix of hardwoods, primarily oaks and walnuts. Oaks require a near clear cut to get established, so there are only a few small...
I don't know whether to answer this or not, since my French polish experience is confined to repairs rather than builds. But I do work with colors from time to time, so here goes:
1. Let your...
From my experience (built a few) an EUB is a pretty basic project, particularly if it has magnetic pickups. For a 3/4 scale instrument, all the critical dimensions come from the upright bass. I've...
Jason is an old friend, so in no way would I want to discourage or criticize him and he definitely knows how to build a good instrument; 'nice looking mandolin.
There was a time a couple of...
My apologies in advance for what is going to be a lengthy post, the purpose of which is to end the 'Zorzi myth'.
As I explained years ago in another thread, I have serious doubts about this man’s...