The Hub

The latest builds, repairs, and conversations from across Looth. Activity
Filters AND Tag #bridge plate× Reset all
Private member DiscussionShare Your Repair Content

DIY silicone blanket heater

Thought fellow looths might enjoy this geekery. I've often wished for custom size heating blankets, but didn't even try uploading the file to get a quote from some of the major manufacturers. I was looking to spend countless hours of my life on something and save a hundred bucks. So I did some research, a little bit of head scratching, a slight bit of math reckoning, and made this '70s Martin bridge plate remover. Pretty slick, nice…

4 replies
4 replies
LikeShare
Ian Davlin
DUDE !
Private member DiscussionAcoustic Repair

1930 Gibson L-0 Top Sink

Hey All! I hope everyone has been loothing and living as well as possible. I'm checking in to ask for an opinion. I have been asked to fix or improve some top sinking/splitting of a Mahogany top 1930ish L-0 that sits between the bridge and the junction of the X-brace. It's showing signs of wanting to crack further but neither seems to be all the way through the top. I have removed the bridge plate cleanly and have tried wetting the…

4 replies
4 replies
LikeShare
Ian Davlin
Maybe so. Could be a lot of things. I would leave it be. Everything I can think of is either dumb, risky or both dumb and risky.
Private member DiscussionAcoustic Repair

More Tanglewood bridge issues

The COE reviewed this bridge disaster in January, a Tanglewood acoustic given to me that had the bridge ripped off as well as some of the underlying top, and an attempted repair with spruce veneer (COE video link https://www.youtube.com/watch?v=AlpOIWQrAlw&t=2685s). The general opinion was to install a bigger bridge plate. However, once I removed the existing bridge plate, I found that the underlying repair had not been fully done,…

5 replies
5 replies
LikeShare
Ian Davlin
Private member DiscussionAcoustic Repair

Alvarez bridge plate question

An Alvarez MF350C arrived on my bench recently. The bridge was lifting ever so slightly, which prompted me to look inside. It's got a bridge plate like I've never seen before. The pin holes are on the very edge of the bridge plate. Seems like you'd want some of the re-enforcement behind the bridge pins. This one, there is none. Some questions: Is that normal for an Alvarez? Could this have been replaced at some point? What are the implicat…

LikeShare
Private member DiscussionAcoustic Repair

1950 Martin D28 with localized scary thinning.

Hey all. I've got the above-mentioned guitar on my bench. It had a neck reset and what appears to be a new bridge pad put in 14 years ago. It's a crack-free guitar except for a couple of little hairlines running from the back of the bridge to the upper tone bar. I thought that was a bit weird. Inside, everything looks okay until I turn off the inspection light, at which point I can see the rosy glow of daylight through the top - this…

8 replies
8 replies
LikeShare
Private member
In classical woodworking theory, yes - crossgrain glue-ups are a real no-no, but we get away with it in guitarmaking all the time. We're the rebellious bad boys of woodcraft! In this case I went w…
Private member DiscussionAcoustic Repair

Martin Bridge Plate Crack

Hey all. I have a Martin D18 with a severe belly up. The bridge has nearly popped off all the way at the time it was brought to me. Looking inside, the bridge plate has a crack going across all the pin holes. There's a few additional cracks above them toward the sound hole. Replace, or not replace, that is the question? Is this plate salvageable, with a tool like StewMax's BridgeSaver? I'm planning to heat treat the footprint of the bri…

5 replies
5 replies
LikeShare
Private member
I'm all about the path of least resistance and filling with epoxy sounds good to me. But you mention watching out for additional cracks. What about the cracks on both sides in the plate above the pin…
Private member DiscussionAcoustic Repair

Anyone ever see this in a brand new (tenor) guitar?

Owner complained about buzzing and just a thin, wimpy response....After getting the nut right and making sure the relief was in range, it was still suffering the same symptoms....Then I took a look to see what might be going on with the pins/ball ends, or if there was something loose, and found this.

3 replies
3 replies
LikeShare
Private member
Yeah, as Maxwell Smart used to say, "missed it by that much!" 😆 Since the guitar was new, I suggested he return it. He wanted to know if he should get his money back, or ask for a replacement...I said…
Private member DiscussionAcoustic Repair

1915 Washburn damaged bridge plate

I have a 1915 Washburn parlor that just walked through the door. Bridge plate is pretty chipped out and led to a top crack and the bridge pulling up. The plate is tucked in the kerfing so removal isn't an option. Anyone ever dealt with this sorta thing before?

1 reply
1 reply
LikeShare
Ian Davlin
If it were me, I would pull and replace. You can make a depth stop saw by cutting a saw blade and gluing to pieces of wood on either side. As this is a spruce bridge plate, it would respond favorably…