Jump to content

erikbojerik

Veteran Member
  • Posts

    3,869
  • Joined

  • Last visited

Posts posted by erikbojerik

  1. Hmm. I was once denied a piece of figured bubinga because he knew I wanted to make a guitar out of it, and not a table. "You'll be cutting away too much of the wood for anyone to appreciate its beauty. If you were making a coffee table, then I'd give it to you, but you really don't seem to care enough about this piece for me to sell it to you."

    ...

    Its a freakin' piece of wood, not a magical trophy. *shrugs* I bet it wasn't that pretty anyway.

    Hehehe - I'll wager that the economy has turned that guy's viewpoint around 180°....

    Even with a perfect piece, if the end is rough (i.e. not recently cut since being out of the kiln) I will lob 2" off the end just to be safe. But I have also been known to hand-select a piece with some end checks, if the figure is what I'm looking or AND I can work around it.

  2. In me experience, the three major factors that can mess you up at this stage are:

    #1 your sanding/polishing in the prior stages was not good enough. As you move down the grits, you need to completely clean off the instrument between each grit, otherwise you continue to make scratches from little bits of the larger grits that you haven't removed. Also, at each grit you need to make sure you have removed the scratches from the previous grit.

    #2 the substrate you're using with the Maguiars is not good enough. It might be causing scratching itself - I use the StewMac foam pad chucked into a drill for this stage, with the drill sitting in a vise so that I can hold the guitar with both hands. If I'm doing it by hand, I use a cotton T-shirt. Whatever you're using, you also have to be very careful to not contaminate it with dust or any other abrasive grit - I keep mine in a clean Tupperware box in a drawer, and from Day 1 I have used it only with Maguiars swirl remover and nothing else (no cross-contamination with other grits).

    #3 your finish is not hard enough to get a "dipped in glass" buff-out. This can happen if the material is just too soft (for example, Tru Oil can be buffed but not quite as hard as poly), or it was thinned with the wrong material (never thin with mineral spirits...), or it hasn't cured long enough to harden completely.

  3. I also started life with this tool, and now it sits unused. After several iterations I finally took the plunge and built the kind of binding channel cutter that is used for acoustic guitars, basically a dedicated router mounted on drawer slides (so it follows the top). I use the StewMac rabbet bit with its set of bearings, keep the bit in the router and just change the bearing underneath for whatever depth channel I need.

    Right in front of the bit is a small shelf of wood that registers on the top - really the only tweek I need to do is to make it a little less wide, more like the width of the bit.

    repair1JPG.jpg

    BindingJig2.jpg

  4. To answer the question YES - do everything in your power to minimize temperature and humidity changes when caring for vintage instruments.

    @ your specific guitar - all that stuff is pretty typical for a cheaply made acoustic guitar with some years on it, even if you did keep it well humidified (maybe the only exception is that you don't have too much bridge lift going on). You're looking at a neck reset here in addition to re-joining and cleating the top's center seam.

    Those photos make a good case for loosening the strings on your acoustic when its not being played every day.

  5. A lot depends on the instrument itself - is it a standard 34" scale? If you have a nice tight B string at normal tuning, then just try dropping everything down by 2 half-steps and see how it works out, you don't need new strings to try that. Works for John Myung.

    If its too floppy, then I'd go with a set of light low-B 5'ers (or a 6-string light set if you can't find those) and tune up. La Bella makes a 5-set that goes 40-118 (Super Steps extra light).

  6. I have seen it happen twice, a little bit of back-bow when I've glued a rosewood or ebony fretboard onto a neck (maple and walnut) with Titebond - the moisture swells the wood fibers in the neck but not the fretboard, and results in a bit of backbow even when clamped flat. If you have a double-action rod you can tweek it out before you level the board (which I did), but if not then you're stuck. I switched to epoxy because of this.

    I also prefer to fret the board off the neck, and work out the back-bow before gluing up - stress-free neck. For the taper I actually shape the neck and fretboard separately to a MDF neck taper template using a router table, and then I rough out the neck's back contour on the same template before gluing up.

×
×
  • Create New...