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Posted

That black twelve-string bass that I built for Tom Petersson is only half the story.
I built another twelve-string bass for Tom. And they were finished simultaneously.
Both basses were sent off to Tom's address on June 29th.
The black one was delivered four days later.
But the other one (with quilted maple top) still has not been delivered. UPS has lost the package...
I filed a claim for investigation on July 16. But still no sign of the bass to this day!

 

I am gutted.

 

I'm still keeping my fingers crossed that it will show up in the UPS warehouse after all.
But if you should ever see this bass for sale, please do contact me.


Here are the pics that I took before I sent it off to the USA

 

brooks-exb-12-tp-full-1500_orig.jpg

brooks-exb-12-tp-body-1500_orig.jpg

brooks-exb-12-tp-headstock-1500_orig.jpg

 

brooks-exb-12-tp-bridge-set-1500_orig.jp

brooks-exb-12-tp-output-jack-1500_orig.j


brooks-exb-12-tp-back-1500_orig.jpg

brooks-exb-12-tp-knobs-1500_orig.jpg

brooks-exb-12-tp-neckjoint-1500_orig.jpg

brooks-exb-12-tp-pickup-1500_orig.jpg

brooks-exb-12-tp-custom-built-1500_orig.

brooks-exb-12-tp-headstock-back-1500_ori


brooks-exb-12-tp-full-diagonal-1500_orig

 


Specifications:

- Mahogany body
- Quilted Maple top, bookmatched
- Nine ply laminated Mahogany set neck. Glued in
- Lemon Burst finish. Naturel Mahogany back and sides
- Checkerboard binding
- Ebony fretboard
- Abalone position dots. Aluminium ring in 12th position
- Jumbo frets
- 30 1/2" scale
- Buffalo horn nut  
- ETS Custom made twelve string bridge set. Nickel 
- Two spokewheel double action trussrods
- Carbon reinforcement strip in the neck
- Gemini Dominator in the neck position. Nickel 
- Gemini Devastator in the middle position. Nickel 
- Pure Tone output. Nickel 
- 3-way pickup selector toggle switch
- Hipshot Ultralite Mini clover bass tuners. Nickel 
- Schaller GrandTune guitar tuners. Nickel, Pearloid button
- d'Addario custom  strings 
- Weight: 4.7 kg

 

I'll post pics of the build process below.

  • Sad 4
Posted

As with the black twelve string bass it started with the body blank and neck blank.
I had my wood supplier make them to my exact specs.

A nine-ply khaya (mahogany) neck with walnut strips in between.
And a two piece body blank of the same Khaya.

brooks-exb-12-tp-neck-blanks_orig.jpg


brooks-exb-12-tp-mahogany-body-blank_ori

brooks-exb-12-tp-mahogany-neck-blank_ori

 


Routed the channel for the carbon strip in the middle

As well as the tapering slots for the two truss rods.

brooks-exb-12-tp-routing-black-trussrod-

brooks-exb-12-tp-black-trussrod-channels

 


Then prepared the fretboard.

Drilled the holes for the inlays.

brooks-exb-12-tp-drilling-inlay-holes_or

 


Glued in the position dots. And aluminum ring for the twelfth position. 
Sanded it flush with the 16" radius block.


brooks-exb-12-tp-inlays-ready_orig.jpg

 


Prepared the frets by cutting off the tang on the edges

brooks-exb-12-tp-freybaord-ready-for-fre

 


Hammered them in and used the arbor press to have them seated perfectly

brooks-exb-12-tp-hammering-in-the-frets_

 

  • Like 1
Posted

After I glued on the fretted fretboard I shape the neck profile (sorry, no pics)

And I drilled the tuner holes

brooks-exb-12-tp-drilling-tuner-holes2_o

 


Shaped the headstock outline

brooks-exb-12-tp-tuner-holes2_orig.jpg

 

Then cleaned up the front and back of the headstock.

brooks-exb-12-tp-tuner-holes-ready2_orig

brooks-exb-12-tp-tuner-holes-back2_orig.

 

Drilled the little holes in the side of the fretboard, for the side position markers.

brooks-exb-12-tp-drilling-side-markers_o

 


Glued them in.

brooks-exb-12-tp-making-12th-side-marker

 


And sanded them flush

brooks-exb-12-tp-12th-side-marker_orig.j

 


Filled the gaps underneath the frets with a mix of ebony saw dust and Titebond Original

brooks-exb-12-tp-filling-fret-gaps_orig.

 

  • Like 2
Posted

Drilled holes for weight relief in the body blank and routed the cavities and channels for the wiring

brooks-exb-12-tp-weight-relief_orig.jpg

 

Bought a beautiful bookmatched Quilted Maple top set at my wood supplier (Masave in Zwolle The Netherlands)

brooks-exb-12-tp-very-wide-quilt-set_ori

 


Glued the top op. You can never have enough clamps 😉


brooks-exb-12-tp-clamping-quilt-set_orig

 


Let it sit for a couple of hours

And then routed the body outline.


brooks-exb-12-tp-body-outlien-routed2_or

 

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Posted

Routed the channel for the first step of the checkerboard binding.

brooks-exb-12-tp-body-outline-routed2_or

 


Glued in the strips of checkerboard binding. On the sharp corners it's actually done block by block.

brooks-exb-12-tp-checkerboard-binding-fi


brooks-exb-12-tp-lots-of-tape_orig.jpeg

brooks-exb-12-tp-first-step-checkerboard

 

The routed away the black fiber strip in the outside. And glued in the real outer binding.
I use a hairdryer to soften the binding where it has to make a sharp corner.

brooks-exb-12-tp-heating-binding-corner_

 


When everything was in place I used the strips of inner bicycle tubes to keep it all clamped, while it dried and hardened.

brooks-exb-12-tp-clamping-outer-binding2

 


The two bodies were ready at the same time

brooks-exb-12-tp-two-bodies_orig.jpeg

 

  • Like 2
Posted

Routed the profiel for the controls cover on the back of the body

brooks-exb-12-tp-controls-cover-profile_

 


Routed the neck pocket

brooks-exb-12-tp-routng-neck-pocket_orig

 


Shaped the heel of the neck to fot the neck pocket 


brooks-exb-12-tp-heel-shaped_orig.jpeg

 


Then routed the pickup cavities

brooks-exb-12-tp-pickup-cavities-routed_

 

  • Like 2
Posted

After the neck was glued in I stained the bass in the desired color.
Tom asked for a dark Lemon Burst. Which was a first for me. But it turned out great.

brooks-exb-12-tp-staining_orig.jpeg

 


After a few coats of clear lacquer


brooks-exb-12-tp-first-coats-of-clear2_o


brooks-exb-12-tp-body-side_orig.jpeg

 

Applied the decals

brooks-exb-12-tp-headstock_orig.jpeg

 

  • Like 2
Posted

While the lacquer cured, I started to prepare the tuners for installment.
Like I mentioned in the thread of the other bass that I built for Tom Petersson I modified the Schaller tuners a little bit.

Two reasons: Save weight.  And to make them shorter in order to keep the headstock as small as possible (without sacrificing strength of the wood).


brooks-exb-12-tp-grand-tuner_orig.jpeg

brooks-exb-12-tp-dremel-grand-tuner_orig

brooks-exb-12-tp-ear-cut-off_orig.jpeg

brooks-exb-12-tp-grinding-wheel_orig.jpe

brooks-exb-12-tp-grinding-wheel2_orig.jp

brooks-exb-12-tp-modified-grand-tune_ori

 

After I had wet sanded and polished the bass, I installed al the hardware and electronics.

brooks-exb-12-tp-pickups-mounted-quilt_o

brooks-exb-12-tp-quilt-sans-bridge_orig.

 


Initially the bass was designed with a pearloid pickguard (which matches the pearloid buttons of the octave tuners)

But when I saw the beautiful quilted maple top I got second thoughts. And suggested we'd leave the pickguard off.
Tom agreed to leave it off.

But I did make some pics with the pickguard that I already had cut out.
I used cut off head of phillips crews to make it look as if it was really mounted. So no holes were drilled in that quilted maple top.

brooks-exb-12-tp-body-pg-1500_orig.jpg


brooks-exb-12-tp-lower-horn-pg-1500_orig


brooks-exb-12-tp-diagonal-body-pg-1500_o

 


I put the pickguard inside the case. So if Tom should change his mind he can always decide to mount it after all.

  • Like 4
Posted
23 minutes ago, Basvarken said:

Both basses were sent off to Tom's address on June 29th.
The black one was delivered four days later.
But the other one (with quilted maple top) still has not been delivered. UPS has lost the package...

Dude, this was heartbreaking to read.

I read the thread for the other (black) bass, and was looking forward to this one, but that sentence sent my heart sinking for you.

A wonderful build, that I hope turns up for you soon.

 

Mark

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