Acoustic Build 8 from Geo Dell

Acoustic Build 8

Guitar Posted by Geo Fri, April 14th, 2017 12:07:09
I spent the day getting the top wood flush with the body and installing the Piezo disc elements.
I took the basic overage of the top down with my bench/belt sander and then sanded the balance and rounded it over, by hand. It took more time sanding by hand but I like to feel the wood, see it change as I sand it, watch the grain for problems, something you can’t do with an electric sander. I have all of the rough sanding done.

I turned my attention to the Piezo discs.

Piezo elements can both produce sound and pick up vibration and turn it into sound. Nice little invention.
Most acoustics, if they have a pre-amp probably have a piezo based element in the guitar. That would be a long narrow rod that fits under the saddle. Same technology, different design. These discs I have can be cut down and can be placed nearly anywhere. The closer to the spot where the strings enter the soundboard or the saddle, the more sound they will pick up. I used Aliphatic resin to attach them to the soundboard. Yes, it would have been nice to do it before I glued the soundboard down, and probably easier too, but then I may have chanced installing them in an area I need to drill for string pegs. So, I waited until I had cleared the neck pocket, test mounted the neck and knew exactly where the bridge and peg setup would be on the soundboard.

I mounted one slightly away from the peg area, but not much. The second one is on the long angle of the backing plate for the bridge, farther Away than the first. The two will be blended and then can be chosen by themselves for an acoustic sound or blended with the humbuckers for a hybrid tone. By mounting them where I did I should pick up a little more of the bass end of the guitar than the treble end.

I will take a few days off while I wait for the neck screws (Special order) and new order of sandpaper to arrive. I picked the colors from what I have in stock. Black body and neck head-stock, red-tinted top and neck back, and clear satin over the entire thing including the neck. Should look great. Thanks for looking and the feedback.
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Hey! Check out my Guitar Works guides!

Guitar Works One: https://www.amazon.com/dp/B00VF0RYJE
Guitar Works Two: https://www.amazon.com/dp/B00VITFXZE
Guitar Works Three: https://www.amazon.com/dp/B00XNPXHQI
Guitar Works Four: https://www.amazon.com/dp/B01390FUSY


Building Guitars Post 4

Building Guitars Post 4

Late last night I glued up the new top, braces, etc.

Late this afternoon I took off the clamps, worked the neck pocket with files to remove the excess top wood and got my first look at the way the neck mount will look. Very nice. There is a slight angle to the mount that is perfect. I ran a straight edge along it and it will work fine, I’m very happy with it.

I moved on to the bridge. I had already made the maple bridge to match the bridge I had made on the build similar to this, but I decided I did want rosewood. So I dug out the rosewood and cut a slab and then made a two piece bridge that I really like. It took most of the day to design it, cut it, shape the pieces, drill it, route it, etc, but I think it was more than worth the work.

I kept reminding myself that this was a seven string so that I wouldn’t end up laying out a six string instead, and still, twice, I marked the bridge for a six string layout. Measure three thousand times cut once. Good thing that is a rule. I am pleased. The sound when I tap the top around the bridge and sound-holes is very treble rich, glassy, exactly like the last build I did like this. That is what I wanted. Of course, that is no guarantee I will get a repeat in sound that I got from the last build, but I’m hopeful.
The lower bout is the opposite, very bassy, also the same. The Spanish bracing gives it that difference in sound between the upper and lower bouts that is so stark. Not a slowly changing tone when you tap the wood but an immediate change once you pass that central bridge strut.
That build I refer to was about eight years ago, I kept good notes, I have not deviated much at all.
So far I have about $60.00 in the whole thing, that includes the donor body, neck, fret wire, electronic pieces, including pickups, piezos, etc. I’ll add tuners, strap buttons, paint and still be under a hundred finished and playing.
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Hey! Check out my Guitar Works guides!

Guitar Works One: https://www.amazon.com/dp/B00VF0RYJE

Guitar Works Two: https://www.amazon.com/dp/B00VITFXZE

Guitar Works Three: https://www.amazon.com/dp/B00XNPXHQI

Guitar Works Four: https://www.amazon.com/dp/B01390FUSY

Guitar Works Five: https://www.amazon.com/dp/B06XPCGGLZ


Building Guitars post 3

Building Guitars post 3

Posted by Geo 02-10-2017

Sanding and profiling the parts. I also laid out the holes that need to be drilled.

Capacity wise, these openings will allow the same volume of air movement as the large center hole would.

I also finished the two long body pieces, put the curvature into them and mounted them to the body.

Everything else will be glued onto the soundboard and then the whole thing mounted and glued to the body and the two braces.
I pre-drilled all holes and then drilled from the back to keep splinter and tear out to a minimum and on the inside where it won’t be seen.

The soundboard pieces are all sanded and shaped as well, ready to go on after a few more cutouts on the soundboard/top.
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Hey! Check out my Guitar Works guides!

Guitar Works One: https://www.amazon.com/dp/B00VF0RYJE
Guitar Works Two: https://www.amazon.com/dp/B00VITFXZE
Guitar Works Three: https://www.amazon.com/dp/B00XNPXHQI
Guitar Works Four: https://www.amazon.com/dp/B01390FUSY


Building Guitars post 2

Acoustic Build 2

Guitar Posted by Geo Fri, February 24, 2017 11:37:05
Late night, last night. I cut the sound board pieces. These are laid out, rough shaped only. They will need to be finish sanded and then shaped to the board and arch I want.

I drew up a rough sketch of the soundboard lay out from the build I based this off of. You can see they are very similar.

I also rebuilt the bridge I used for that build. The wide part will hold a brass saddle, the back angle will hold the strings.

All of the soundboard wood is hard maple, including the piece for beneath the bridge. Spruce is most often used, Hard maple gives the sound a glassy tone, more to the treble side. As well, I built the bridge from hard maple too. Most often Rosewood is used, I have some very old rosewood stock, but I like to use sustainable wood sources when I can, and I have to remind myself this is a quick low-buck build. Additionally Rosewood can be very brittle, maple is strong yet very pliable. With close to 185 pounds of pull at the bridge that has to be a concern to me…
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Hey! Check out my Guitar Works guides!

Guitar Works One: https://www.amazon.com/dp/B00VF0RYJE
Guitar Works Two: https://www.amazon.com/dp/B00VITFXZE
Guitar Works Three: https://www.amazon.com/dp/B00XNPXHQI
Guitar Works Four: https://www.amazon.com/dp/B01390FUSY


Building Guitars post 1

Acoustic Build 1

Guitar Posted by Geo Fri, 02-10-2017 11:24:08
A new project. I had a talk with someone about building guitars and never playing them, and how I would like to build a jazz guitar. So I decided to build something I would use, a seven string acoustic. I popped the top on a junk acoustic body after removing the neck.

Built a block in to hold the neck and then a pocket for it.


The neck is test fitted in the last photo, at the correct angle, just need to build a new top/bridge/etc lol.

Progress.
I traced the body onto the blank for the new top and then cut it out.

I left it wide to make sure there would be no mistakes. I fitted the piece, took my handy little scuff-pad and knocked off all the rough edges, and then finished the profile for the neck heel I added too.

Lastly, I transferred the neck pocket to the top, leaving it over-sized.

The next step is the soundboard/bracing and then the top will be glued, left over-sized. After drying the sides will be sanded flush…
………………………………..
Hey! Check out my Guitar Works guides!

Guitar Works One: https://www.amazon.com/dp/B00VF0RYJE
Guitar Works Two: https://www.amazon.com/dp/B00VITFXZE
Guitar Works Three: https://www.amazon.com/dp/B00XNPXHQI
Guitar Works Four: https://www.amazon.com/dp/B01390FUSY