The Hub

Greetings Wise Elders and fellow seekers of the Looth Group! I hope you're all keeping well. I humbly beseech thee for thine sage wisdom and experience. I purchased a 1971 Hagstrom Swede. This guitar was basically put in a case and then forgotten about for a few decades. I felt sorry for the old man and have taken it in as a stray / project. I would like to get it playing again. There are many scars on this guitar, I have looked for as…

I don’t have CNC capabilities so I could not duplicate Dave Slimmer’s version ( https://loothgroup.com/loothprint/bridge-clamping-cauls/). Got a 12x18x1/2 inch HDPE cutting board on Amazon for under $10 (https://www.amazon.com/dp/B001D3LQVA), drilled a row of 1/2 holes about 5/16” deep with a Forstner, cut the HDPE into 5 sided chunks so I could orient by touch, and free handed the brace grooves on the band saw. The clamp swivel pads are 1…

At what point do you tell a customer that their acoustic instrument needs a bridge reglue? Do you do it when the corners are just barely starting to lift? Once it has begun to affect playability/tuning stability? Do you offer half-measures to save them money when the damage is not too bad (dripping in some thinned tite bond instead of removing the bridge entirely for example)? I ask this because a Godin acoustic bass just came across my…

Hi all, I got a Do Santos DSMSCC RC in shop, the Spanish heel has failed , or rather collapsed into the soundboard, splitting it on both sides along the grain, a broken brace just under the fingerboard extension , cracks on both sides on the top/side bindings, I measured wood humidity on the fingerboard 9% and inside the (very inaccessible) body 11% The normal procedure would be to re-humidify before jacking or clamping back into place ,…

All - looking for recommendations on overall approach for repairing this nasty side crack right at the edge of the tail block. My initial thought is that either the top or the back needs to come off in order to properly glue and clamp the main split. Thanks in advance. Images

I am working on a neck reset on a Washburn Parlor - SN 283552. I have read that the 28 in the SN indicates that is was built in 1928, but the owner thinks based on her research that it was built before 1920. I am assuming a dovetail joint and that I can get into the neck joint for steaming by drilling into the 13th fret slot, but if anyone knows differently please let me know. The fingerboard extension has already separated slightly…

Hi all, I am a newer guitar tech and after dozens of repairs this particular Simon & Patrick Luthier Cedar top SP6 acoustic dreadnought from the 90-ies with a bolt-on maple neck has been an incredible challenge. It came with a maxed out and stuck truss rod with a considerable up bow in the neck, extremely low saddle with barely any string break angle, so it needed a neck reset. Later on I figured out that it also has a pretty dras…

I have a Kalamazoo made epiphone with the most extreme fingerboard ramp I have seen. I have the neck dead straight from 1st fret to body joint and get a 1/16 of gap when I run a straight edge from 1st fret to the last fret. The frets average .040" but someone leveled the extension and those frets are half the height. Does anyone have any suggestions for flattening the extension. Clamping a block on it? If I level the board during a r…

Hi all, I'm new here. I've been playing guitars for ~15 years and recently started as a technician at a music production school in London, where part of my job is maintaining the guitars. I picked up this 50s parlor nylon the other day and it's in bad shape but I don't know how to go about repairing it. The main issue is the bridge. The guitar was kept high strung and the bridge has twisted and lifted off slightly at the base. T…

I had a bridge replacement in which the top surface (laminate) had been badly damaged during a prior repair. The first picture shows the extent of the tear out, including one large area and many smaller defects in the top layer. The surface was cleaned of all the old glue and primed with dilute hide glue. A piece of poplar veneer was glued in the largest defect and a hot slurry of hide glue and fine poplar dust was spread across the res…

Hello Friends, I've had a vintage Epiphone acoustic stored at the shop for almost two years and it's about time to wrap it up. That never happens, LOL. It has a few loose braces, which is a repair I've done in the past. The problem with this one is that no matter how I jack up the loose braces from the inside, some parts of some braces simply do not move enough to come in contact with the soundboard. This is happening in a couple…

So, I made a modular clamp based on the split clamp idea. Started on a prototype about two months ago and finished it. What I was aiming for was a clamp that I could use on the BOTTOM of acoustic guitars as well as tops to clamp cracks, cleats, braces, patches etc. Especially a clamp that would access small openings like "F" holes, small sound holes etc. Essentially a way to get a clamp to areas not accessible to jacks, wedges etc.,…

A while back I saw a Canna Guitars video on Instagram and thought his use of the “wave” scarf joint between his neck and headstock was an interesting use of CNC. But it got me thinking about other options, and this idea percolated in my brain: Cut a regular scarf joint, but then using a CNC cut a tenon into the neck, and a mortise/dado into the headstock. (Obviously you could also do this by hand with a saw and chisel). The joint would i…

Hi Everyone, I was given this guitar to harvest parts from and then throw into a fire due to a partial break in the neck. When I pull the neck to close the break the action is perfect so I'd like to fix it and then donate it. Can anyone show me what clamps to use to keep it closed after I glue it? Also, would you recommend strait wood glue or would you water it down somewhat to allow it to seep in further? Thanks in advance!

Someone from the group asked if I'd make a video on how I modified a sound hole clamp by splitting it in half. Here's the vid. Some were semi worried about injury do to DYI nature of the vid, so I put this disclaimer to you: Any contents in this video are not the responsibility of The Looth Group or any of its subsidiaries or the creator. There's also a more wordy disclaimer in the "more" section of the vid. Onward.......https://you…

I recently had a guitar come in with a crack in the top. The top was an arch top so the top was thick and the crack uneven from side to side so I wanted to be able to supply more pressure then just using magnets to be able to even up the crack sides. But access was limited to a small sound hole and so no way to get jacks or a clamp to fit. I also wanted to use full length longer cleats instead of fiddling with the tedious fishing reel…

I bought the O'brien vacuum clamp and a pump to clamp bridges on new builds, but also to use for repair work. I got tired of making custom top and bottom cauls for every odd-shaped bridge that comes in my shop. The vacuum clamp works great on a flat surface with no pick guard. I put it on a J45 with a pick guard, and it won't seal. The gasket is too hard to form over the pick guard. I've seen YouTube videos of other folks using vacu…