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Chambered Bass


jaycee

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Here I go again. This will be my 4th build but this time a Bass for my brother.

34" scale length

5 piece neck Sapele/Ash/Sapele/Ash/Sapele.

Not sure of the rest of the woods for the body yet but they may be the same. I am thinking of a Maple fretboard with Wenge inlays, he really liked the Roman numerals on my last build so I may put those on this one.

IMAG0551.jpg

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Neck lams joined and scarf joint done

BassneckclampII.jpg

Bassscarfejoint.jpg

I bought some digital calipers from Lidl's the other week, thought they may come in handy, now I find myself checking the thicknesses on everything i.e. both sides of the headstock, I think they will br a great asset to the builds.

Edited by jaycee
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  • 2 weeks later...

A few more progress pics.

Body blank

Blankfront.jpg

Clamped the one half of the body to the work bench with a piece of mdf underneath to get it off the work surface and planed the same way you would if it were a shooting board. this way I got the sides nice and square

IMAG0548.jpg

122 holes drilled for the chambers

IMAG0552.jpg

Edited by jaycee
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I'm going with a router with a straight bit of some sort.

Yup, I used a template bit.

BassBodytemplates.jpg

First of all I chisled away all the remaining wood, then put the template on and routed the sides. As the base of my template wasn't wide enough to reach the middle of the "chambers", I removed template, used the same thickness mdf to bridge the gap and removed the middle section with the same bit ( I don't normally use a template bit for hogging out but it needed to be replaced) and the router marks were cleaned up with sandpaper.

I have made an extra wide base for my router but in this case I couldn't use it as I don't have a 1/4 shank bit which would have reached the bottom. I can find 1/2 shanks 2" long but nothing in 1/4

Edited by jaycee
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  • 2 weeks later...
  • 1 month later...

I used a 14 and 10mm bit for the holes and a jigsaw with a new bosch blade, quite a narrow blade to allow for corners. Very pleased with the result. Cleaned it up with sandpaper and a drum sander attatchment in the cordless drill.

PICT0045.jpg

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I am putting 10mm tigers eye dots in the fretboard which is Birds eye maple as is the veneer on the headstock.

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I'm working on a chambered bass right now myself... I hope it turns out anywhere near as good as this one is looking.

Love the drilled relief holes for the body cut out too. Thanks for sharing. Even if I don't use it on a whole body, the inner horn radii and other tight turns will definitely benefit from this.

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Thanks guys.

I'm working on a chambered bass right now myself... .... Love the drilled relief holes for the body cut out too. Thanks for sharing. Even if I don't use it on a whole body, the inner horn radii and other tight turns will definitely benefit from this.

The relief holes were great especially as I used a jigsaw to cut the body out with as it stopped the blade from wandering off the vertical axis for to long.

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  • 3 weeks later...

Haven't got a drum sander, or made a jig for the router for thicknessing / flattening the top so heres how I do it

Mark the top with a pencil .....

PICT0062.jpg

Put face down onto sanding bed.....

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After a few cans of elbow grease....

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Quite happy with the result and a nice tight joint. I used 60 grit and will tidy it up using an orbital sander to 220 and then go through to 320 before the finish goes on.

The small scratch at the bottom has been sanded out, I noticed it after the pic was taken.

Edited by jaycee
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  • 4 weeks later...
  • 4 weeks later...

Progress on the neck has been slow, I am waiting for the dots I want to be re-stocked.

I will do a partial carve of the neck because I like to have a flat section when the frets get installed.

Taking a rasp to a perfectly good piece of timber is scary

PICT0089.jpg

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The heel opposite the neck pocket is being half profiled for easier access to the upper frets, which means the neck pocket is only half the width of the neck

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