Author Topic: The Scroll Shop (Ed of H's Shop Thread)  (Read 19127 times)

pauldo

  • club
  • Senior Member
  • *
  • Posts: 4901
  • What chaos . . . ?
Re: The Scroll Shop (Ed of H's Shop Thread)
« Reply #645 on: July 16, 2024, 02:07:28 PM »
Agreed, your creative clamping is artistic.

edwardofhuncote

  • club
  • Senior Member
  • *
  • Posts: 8017
Re: The Scroll Shop (Ed of H's Shop Thread)
« Reply #646 on: July 21, 2024, 05:25:24 AM »
I haven't had much time for shop updates this week. Man, I turned in a scary one Friday morning... it was a job I really shouldn't have taken in the first place; a 1965 Martin D-28. In mostly original condition, an $8-10k guitar. But it was supposed to be a simple bridge reglue. And that part was simple... easier than usual. But it had a slightly loose brace too, that had allowed the top to get a crease in it right behind the bass side of the bridge. I used my phone-a-friend privileges and called my buddy and mentor Ward Elliott for advice. After having a little fun with me, he took a look inside and agreed this was a mean one. He loaned me a caul for flattening the top first. I spent the next 10 days and nights trying to get the top of that guitar back to something flat enough to work with. Then the hard part was how to get glue under the brace... as soon as I'd let the strings down the tiny little gap would disappear. I ended up working thinned fish-glue (it's a real thing - look it up) into there with the three bass strings still on the guitar tuned up to pitch, then wound them down quickly, used a hot, damp cloth to clean up the excess, and applied clamp pressure directly to the brace with a cork-lined flat caul on the top side. Part of the advantage of the fish-glue is longer work time, and easy cleanup. 24 hours later, I restrung the D-28 and held my breath. The top stayed flat as a flounder. You guys really didn't want to see pictures of glue drying did you? Here was the real repair; Ward's flattening caul. The repair would not have succeeded without having that top flat first.

What else...? Well, there's that HPL Martin I was evaluating for repair. It's a pretty sad case... fixable, but quite honestly the amount of time I'll spend doing this will make the bill very close to the cost of a new similar model. I'll have to find a nice way to tell them that. HPL guitars are tough but they are still breakable. This model has a solid top. As you can see, it has some extreme damage. There is a jagged hole that took out some of the kerfing too. There is a center seam separation, and another top crack, and a couple 'whisker' cracks at the tail block. The back has a jagged hole through the HPL, and the back is separated from the side for several inches. Gluing that separation back isn't a big deal, but replacing the missing piece is. (here's a close-up look at HPL for ya' Dave...) On one hand, I love to see guitars played... but this guitar has been abused. So this is where I sometimes have to turn the switch off and treat it like a job. I can fix it; here is what it will co$t.


The SuperTone 'Graduate' has been drilled and fitted for lag bolts and I've fitted the coordinator rim-rod in. I'll probably finish it up this afternoon. It'll take a couple days for the hide-head and gut strings to settle in. More pics of them later.
« Last Edit: July 21, 2024, 05:28:52 AM by edwardofhuncote »

David Houck

  • Global Moderator
  • Senior Member
  • ******
  • Posts: 15595
Re: The Scroll Shop (Ed of H's Shop Thread)
« Reply #647 on: July 21, 2024, 07:25:23 AM »
Any idea what happened to this guitar to have suffered such damage?

edwardofhuncote

  • club
  • Senior Member
  • *
  • Posts: 8017
Re: The Scroll Shop (Ed of H's Shop Thread)
« Reply #648 on: July 21, 2024, 08:55:03 AM »
Any idea what happened to this guitar to have suffered such damage?

I don't much like term Dave, but I believe this guitar is/was a 'beater'... an instrument used somewhat carelessly as a utility. I think it was impaled by something accidentally. (at least I hope it wasn't intentional) That's the bulk of the damage. The top cracks can be attributed to insufficient humidity. The rest is just sheer play wear and rough handling. You know, stuff happens at bar gigs... my old '50 D-18 has had the whole bass side replaced from the waist to the tailblock, allegedly from a barfight many, many years ago.

As far as Martin guitars go, this one could be replaced for about $4-500 secondhand. (I don't think there is a new equivalent) I'll be hard-pressed to fix this one under that. I'll probably estimate high and let them be happy if I come in under. I see about 8-10 hours of bench time here. To say nothing of it will still look just... awful. But I won't give up on it if the customer says "fix it".



*found the pics of my D-18 replacement rib in an old thread... I did not perform this repair, it was done in the late 1960's.
« Last Edit: July 21, 2024, 09:00:29 AM by edwardofhuncote »

edwardofhuncote

  • club
  • Senior Member
  • *
  • Posts: 8017
Re: The Scroll Shop (Ed of H's Shop Thread)
« Reply #649 on: July 21, 2024, 01:21:34 PM »
Post-game on the SuperTone banjo... it's all done and strung up, ready to go. I'll watch it for a couple days, let those nylon strings finish stretching and the old hide-head settle in again, then take it back to the store. Here's a few detail pics of the completed project. Have to say, one of the cooler banjos to pass through here in a while.  8)

rv_bass

  • club
  • Senior Member
  • *
  • Posts: 4382
Re: The Scroll Shop (Ed of H's Shop Thread)
« Reply #650 on: July 21, 2024, 03:33:38 PM »
Very nice work, Greg 😊

cozmik_cowboy

  • club
  • Senior Member
  • *
  • Posts: 7338
Re: The Scroll Shop (Ed of H's Shop Thread)
« Reply #651 on: July 21, 2024, 03:47:35 PM »
Very nice work, Greg 😊

As always.

But I do confess, I really don't understand how the mechanicals of a banjer work.

Peter
"Is not Hypnocracy no other than the aspiration to discover the meaning of Hypnocracy?  Have you heard the one about the yellow dog yet?"
St. Dilbert

"If I could explain it in prose, i wouldn't have had to write the song."
Robt. Hunter

edwardofhuncote

  • club
  • Senior Member
  • *
  • Posts: 8017
Re: The Scroll Shop (Ed of H's Shop Thread)
« Reply #652 on: July 22, 2024, 02:29:26 PM »
Very nice work, Greg 😊

As always.

But I do confess, I really don't understand how the mechanicals of a banjer work.

Peter


Thanks fellas. 😊

They are mechanical gizmos, fer sure. And on one level, that makes them easier to work on.

This one is now a little more mechanical than it was originally, Coz. If you scroll back upthread a few posts to when this one came in, you can see its neck had the wooden dowelstick running through the pot assembly, and the bolt in the end supplied an anchor point for the tailpiece. This was the common construction method of the time... how the neck was fastened to the pot assembly and that fit also determined the draught angle of the neck. This one's dowelstick was badly warped, the neck was pitched waaaay forward, so far that the bridge was only a 1/4" tall, yet the strings where the neck heel joined the pot were ridiculously high. I had to address that somehow to make the instrument playable.

Given how dorked-up that stick was, I opted to amputate it, trim the neck heel to a better fit tipped back (much like you'd calculate setting the neck in an acoustic guitar, just a butt joint,  no dovetail) then install an adjustable coordinator rod. This threaded rod secures the neck to the pot and allows you to push or pull a little bit on the shell walls, then lock them in place.

NECK----> [--]  <-----ROD------ > [--] <---- LOCK NUT

I really wouldn't have done away with the dowelstick if it weren't so wacked. This solution just made sense here. I had thought about a way to hide, or somehow disguise the coordinator rod as a dowelstick, but it would have run me into overtime on the job. If the eventual buyer wants, I'll take a rip at that.
« Last Edit: July 22, 2024, 03:11:27 PM by edwardofhuncote »

pauldo

  • club
  • Senior Member
  • *
  • Posts: 4901
  • What chaos . . . ?
Re: The Scroll Shop (Ed of H's Shop Thread)
« Reply #653 on: July 22, 2024, 06:42:57 PM »
You make it sound easy.  😀

edwardofhuncote

  • club
  • Senior Member
  • *
  • Posts: 8017
Re: The Scroll Shop (Ed of H's Shop Thread)
« Reply #654 on: July 23, 2024, 04:11:11 PM »
You make it sound easy.  😀

Sometimes they are easy Paul, but see Post #646 above. I was sweating battery acid over that D-28. I charged two billable hours for that job, and I swear it took 2 weeks off my life in stress. I really only gained experience.

I have accepted the HPL Martin job, or rather the client has accepted my estimate... so I'll be fixin' it. I did find out about the source of the bulk of the damage. It got knocked over by a sudden thunderstorm that picked up an e-z-up canopy, and bashed it. I'm told it's just a working guitar, to just fix it back to playable, "don't care what it looks like ". Good to know.

So we'll go from there.


*The SuperTone "Graduate" goes back to the store tomorrow.  8)

David Houck

  • Global Moderator
  • Senior Member
  • ******
  • Posts: 15595
Re: The Scroll Shop (Ed of H's Shop Thread)
« Reply #655 on: July 23, 2024, 07:49:59 PM »
The SuperTone looks great!

peoplechipper

  • club
  • Senior Member
  • *
  • Posts: 999
Re: The Scroll Shop (Ed of H's Shop Thread)
« Reply #656 on: July 24, 2024, 08:32:39 PM »
I know the sweatin' acid part; I've taken in jewelry repairs I shoulda said no to and then muddled through hoping not to melt the whole thing...I've lately learned that it's okay to say no I can't fix it, but if you take it to someone with goldsmith's laser, you'll be fine...wish i could afford one, but I'd be paying it off for the rest of my life...Tony.

edwardofhuncote

  • club
  • Senior Member
  • *
  • Posts: 8017
Re: The Scroll Shop (Ed of H's Shop Thread)
« Reply #657 on: July 28, 2024, 03:09:22 PM »
The knitting back together of the HPL Martin is underway. For the official record, this guitar is a a GPCPA5K; the 5th edition of Grand Performance Cutaway model, Performing Artist, in Koa HPL. It's a discontinued model.

So far, I have glued-in the missing piece of kerfing that was loose in the guitar, and began to glue the loose seams of HPL. I'm using epoxy to bond the HPL ribs back to the back. I used some CA glue to patch the fractured HPL in the back. I was pleased to see it bond nicely. Hopefully it cleans up with some acetone, as no touch-up is possible here. The top is a different approach. We'll get to that next.

edwardofhuncote

  • club
  • Senior Member
  • *
  • Posts: 8017
Re: The Scroll Shop (Ed of H's Shop Thread)
« Reply #658 on: July 30, 2024, 04:48:27 AM »
When I got up to the shop yesterday evening, I found that the epoxy glue joint between the back and sides at the guitars waist had 'crept' under clamping pressure. That just sucks. So I went for a walk, kicked gravels and talked to myself for a couple hours. Then I heated up the iron, sharpened the knife, and took it apart again.


After mixing another batch of epoxy, I went with spool clamps this time. And I made a very close inspection of that seam. Maybe tonight I can move on to fixing something else on it.

edwardofhuncote

  • club
  • Senior Member
  • *
  • Posts: 8017
Re: The Scroll Shop (Ed of H's Shop Thread)
« Reply #659 on: July 30, 2024, 04:50:49 PM »
The side seam re-glue/re-do worked... it'll dress up fine. This evening's work was regluing a loose back brace. Just gob some Titebond in the crack, mop up the excess, and fit some old-school turnbuckle brace jacks here...

I'll start patching holes and closing cracks tomorrow night.

I'm tired... lites out.  :P

Oh yeah, before I forget... I picked up a Blueridge guitar from the store this afternoon with a split bridge. No savin' this one; it'll have to be replaced. Pretty guitar, kind of an Asian import take on a Martin 000-45. Here's a few quick pictures.
« Last Edit: July 30, 2024, 04:52:50 PM by edwardofhuncote »