Bass Guitar Build

A few years ago I made a departure from playing guitar and decided to learn to play Bass guitar. It was very enjoyable to learn, especially as it is not a million miles away from the guitar and I already knew which notes were where on the fretboard. I bought a five and later a six string bass, which opens up a whole new horizon. After playing bass in a band for two years I was drawn back to playing the regular guitar and slowly sold off all my bass gear. Lately I've been doing some recording and missed having a bass guitar around to lay down parts. So this next build is a bass!

The brief - I wanted to build a four string bass, spending the bare minimum of cash. I had some boards of interesting timber in the workshop that I was eager to use, bought the hardware off Ebay for peanuts and started surfing for a suitable design. My eye was caught by the beautiful "Thumb bass" built by Warwick - it was a neck-thru design with an interesting twist. So let's get stuck in!

Started July, 2011

To begin I went through my stack of timber to find suitable pieces. I decided to use Ovangkol and Pear for the neck and Bubinga for the body. I also found a scrap of Wenge that was big enough for a fingerboard.

I started by ripping down strip on the table saw to make the neck lamination - three pieces of Ovangkol and two of Pear.

I made the centre lamination a little narrower to ensure when the neck was cut down in width to its final dimension all five pieces would remain visible.
Then it was glue-up time./ Lots of PVA, lots of clamps!
When it was dry I scraped off any squeeze-out and put it through the thicknesser to true it up.
I bought a truss rod and routed a suitable groove down the centre of the neck.
After carefully marking out the neck I removed some of the waste from the headstock area of the neck and planed it true with a hand plane.

In this picture you can see the bubinga for the body and the wenge fingerboard.

Next I glued up the blank for the body.
With a little web surfing I found a picture of the bass outline I liked. I blew this up on the computer and printed it out - this was stuck to a piece of MDF and voila, one body template.
I laid out the fingerboard, cut the fret slots with a hand saw, cambered the board and tapered it to final dimensions. Then I hammered in the frets and glued in some dot inlays.
Next step is to cut a slot through the body for the neck. I transferred the outline to the body and marked on the centre line.
Then I used the table saw.........
...to start removing the waste.
I test fit the neck to make sure I get a perfect fit.
Then I used a router clean up the bottom of the slot.
The neck is then notched to fit in the body, bringing the neck flush with the top.
I want to make a slight "indent" where the neck joins the body so that the transition is hidden by the fingerboard. I mark the neck directly from body and trim it back with a router.
From the rear the bass will look like a regular "neck through" design. The rear will be slightly hollowed once it is glued up.
You can see here how the fingerboard hides the neck to body transition - I'm happy!
I glue two "ears" onto the headstock to make it wide enough.
I round over the edges of the body with a 3/4" radius cutter in the router - this kick starts the shaping.
I re-assemble the bass to see what areas need work  - next the grinder!
The grinder is fitted with an aggressive wood cutting disc and guard. Then I begin shaping the rear.....
.......And front. It is pretty coarse cutting but it is fast!
I then put a 36 grit sanding disc on the grinder and blend it all together.
And finally the random orbit sander with 60 grit paper to smooth it all out. You can make quick progress using your tools in the proper order - use the coarsest tool first to quickly remove the most of the waste then move to progressively finer tools to refine the surface.
Now I need to work out where the the control cavity is going to be and where I need to make tunnels for the wiring - it's better to do this before it gets glued up.
I routed a groove out of the upper edge of the neck which should be useful for the wiring  - it should intersect the pickup cavities.
Plenty of glue (cascamite) and clamps and it becomes a guitar.
A maple veneer is glued to the face of the headstock.

On to page two..........................

 

 

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