Size 2 Martin build coming late October

Guitars by Grant Goltz of Hackensack, MN
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whitespruce
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Re: Size 2 Martin build coming late October

Post by whitespruce » Fri Mar 04, 2011 9:40 pm

Well, this thing is getting close, so I am anxious to get it done. Worked on the peghead today.

Here is the peghead overlay glued on
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This is a bookmatched offcut from the end of the sides

And here it is trimmed to shape
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Now I had to make a drilling jig to do the holes for the tuner pegs. So I used a scrap block of ebony because it is hard and will Make good drilling guide holes. First I squared it up nicely and then marked the hole spacing and drilled them out
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And here is a test fit of the tuners
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These are the latest version of the Stew Mac "restoration tuners" with the engraved plates. Not as nice looking as I had hoped for, but they will work

So here is the drilling jig clamped on the peghead and holes being drilled
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And a couple of shots with the tuners fit
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For the slots, I just marked them out and drilled 1/2" holes at each end. Then cut out the center with a hand jig saw
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Then I used rasps, files, and sanding blocks to shape them up and even them out. Took about a half hour.

And here is the final result
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Still needs some final sanding, but I am happy with how they came out.

So now I got to do the fingerboard. I have some of those bar frets like are on the original, so I gotta do a bit of reading on how best to instal them. Once I get the fingerboard done, just have to carve the neck and do the bridge, and this one will be pretty much done. Guess I had better order up some strings. The original has gut strings, but I am thinking of using "silk and steel"

Stay tuned and don't hesitate to ask questions or comment :D

G

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garydemos
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Re: Size 2 Martin build coming late October

Post by garydemos » Sat Mar 05, 2011 6:31 am

I like it!

Dave Livermore
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Re: Size 2 Martin build coming late October

Post by Dave Livermore » Sat Mar 05, 2011 8:29 am

Grant,
That is REALLY cool looking. Can't wait to hear it (or maybe even play it.) What is your plan for after it is done? Keeping, giving or selling?

Dave
there's no such thing as a ten minute project

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Jim
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Re: Size 2 Martin build coming late October

Post by Jim » Sat Mar 05, 2011 11:28 am

I wondered about the grain orientation of the headplate and now that the slots are cut, I can see the result you were after. Nice detail.

Jim
"When people hear good music, it makes them homesick for something they never had and never will have." -- Edgar Watson Howe

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Marcus McGuinness
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Re: Size 2 Martin build coming late October

Post by Marcus McGuinness » Sat Mar 05, 2011 4:56 pm

Way cool - all of it.

Mac

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Re: Size 2 Martin build coming late October

Post by whitespruce » Sat Mar 05, 2011 9:54 pm

Well, since this thing is on a roll, I chugged along a bit more today. Read up a bit about installing bar frets. Main thing seems to be a whale of a lot of filing after they are in.

So I picked me out a fingerboard, used one that was a tad short for a regular size guitar, and ran it through the thickness sander. Took a strip of acrylic and laid it on the fretboard of the original guitar and marked the fret positions carefully. Then I took a little knife edge file and made notches at the marks so I had a fretting template.

Now the slots for these bar frets are way wider than regular "T" frets. That's because they are simply "bars" of nickel-silver. So the slots need to be the full width of the bars (about .055"). Well, I tried one of those thin kerf Diablo blades, but it cut too wide, about .063 or so. So I took a green 10" diameter silicon carbide grinding stone and laid it flat on the bench. Then I wet it and laid an old Diablo blade on it and started rubbing it around by hand. Worked one side for a while, then the other. What I was doing was grinding down the sides of the carbide tooth inserts. Took about a half hour and I had the blade down to cutting the correct size slots. In the process, it resharpened the corners of the teeth, so it cut like new :D

So I put the blade on the table saw and set up the sled I use for making kerfed lining. Then I used a couple of dabs of double stick tape to attach the acrylic template to the fingerboard blank. So here is what that setup looked like
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Now, in this next photo you can see the little aluminum fin (red arrow) that I glued into a slot in the sled, and how it fits into the little notches in the fretting template
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Just like downtown :mrgreen:

So it just took a couple of minutes to slot the board
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Ya, I know those slots look wide,

But here is the bar fretwire for comparison
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So then I cut the board to length and tapered the sides, leaving room for the ivoroid binding. Here it is ready to be glued to the neck
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I am using a scrap bone piece to get the nut slot the right width, and I drilled small holes at the 1st and 11th fret slot so I can pin the fingerboard in place while I glue it

So here it is glued and clamped
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And ready for the binding
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So that is all for today :D

One thing that I have been meaning to mention. Hopefully you have noticed that I make up "quick and dirty" jigs and such as I need them...nothing fancy and little time or $$ into them. The dovetail neck stuff and the tuner peg hole drilling guide are some good examples. Now, I suppose I could have spent a few hundred $$ and bought real stuff, or I could have spent more time and made up something a bunch more fancy. But what I am trying to demonstrate is that you don't have to. There are a lot of first time or low budget builders on this Forum and I want to show them that it CAN be done for little expense and one can "make do" quite well with quick home made stuff. I hope this is helpful to some of you. Down the road a bit, I will probably do a thread on more detail on some of these things and explain the how's and why's.......at least as they relate to that sorta different drum that I sometimes march to :mrgreen:

Oh, and you have probably also noticed that I don't clean my shop or workbench very often :oops: :lol:

Thanks for looking,

G

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Re: Size 2 Martin build coming late October

Post by Haans » Mon Mar 07, 2011 10:22 am

Very happy to see another traditonalist, Grant! It's going to be a beauty.
Johann D. Brentrup
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Marcus McGuinness
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Re: Size 2 Martin build coming late October

Post by Marcus McGuinness » Mon Mar 07, 2011 12:47 pm

whitespruce wrote:....There are a lot of first time or low budget builders on this Forum and I want to show them that it CAN be done for little expense and one can "make do" quite well with quick home made stuff. I hope this is helpful to some of you.
You bet it's helpful, and a thread on the subject would be incredibly useful, but no pressure :D .

Mac

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