Not quite a Duo Jet build...

Discussion in 'Other Cool Guitars' started by 1883, Jul 6, 2020.

  1. 1883

    1883 Gretschie

    220
    Apr 12, 2015
    Aotearoa
    Forgot to show from where in the slab this piece came from. The full size one has been cut out also and will be carved at some point for a 'proper' Duojet copy.

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    Marv666, RomanS and new6659 like this.
  2. 1883

    1883 Gretschie

    220
    Apr 12, 2015
    Aotearoa
    Spend quite a few hours on working out how to fix 3x3 tuners on a Corvette type offset headstock (which has a 2x4 design). I think I finally have something that may work with my chosen machine heads, while retaining perfect straight strings through the nut to the tuners... See CAD snapshot below - obviously it won't have the Gretsch logo.

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    Here a 2x4 Corvette headstock:

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    And this build, I guess, will end up looking a little bit like this photo below:

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    Then again, I might change my mind...
     
    Marv666, wildeman, Zeek and 1 other person like this.
  3. wildeman

    wildeman Gretschified

    May 10, 2015
    norcal
    I will not be disappointed;)
     
    1883 likes this.
  4. 1883

    1883 Gretschie

    220
    Apr 12, 2015
    Aotearoa
    It is going to be a hollow body guitar so had to make the sides. These are made from Kohekohe wood. Cut four thin strips on the saw bench, each one 700mm long and 1.5mm thick. Then bending them with heat and steam.

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    Gluing the strips together:

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    And then drying them out in front of the wood fire (it is winter here)...

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    new6659 likes this.
  5. 1883

    1883 Gretschie

    220
    Apr 12, 2015
    Aotearoa
    Trying out the CAD design... Created a soft template first, then a hard template, then a test headstock...
    Drilled the 10mm holes in about 6 steps and inserted the tuners. It is going to work :) (even the D string tuner will freely turn).

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  6. 1883

    1883 Gretschie

    220
    Apr 12, 2015
    Aotearoa
    Sides done and tack glued it to the back, still needs kerf lining

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    Making the kerf lining with a simple sliding tool:
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    Kerf lining glued to back and the latter routed to match the sides.

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    Gluing kerf lining in for the top:

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    Next the trestle bit in. Inside mahogany back and sides sealed with one coat of varnish.

    [​IMG]
     
  7. Buckyboy

    Buckyboy Gretschie

    This is getting good!
     
    1883 likes this.
  8. 1883

    1883 Gretschie

    220
    Apr 12, 2015
    Aotearoa
    Gluing in the trestle structure. Seems way to strong... Probably can stand on this guitar body ;)

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    Trestle done, the body is no ready for receiving its top...

    [​IMG]
     
    new6659 and Henry like this.
  9. new6659

    new6659 Country Gent

    Your kerfing jig looks great!
     
  10. 1883

    1883 Gretschie

    220
    Apr 12, 2015
    Aotearoa
    Ta, it is rudimentary but works quite well. Also made video but it is out of focus.
     
  11. new6659

    new6659 Country Gent

    Are your kerfing blocks rectangular or are they tapered? I have used a table saw with a fret slotting blade to make them but I like the looks of your setup more. It looks easier to use.
     
  12. 1883

    1883 Gretschie

    220
    Apr 12, 2015
    Aotearoa
    I taper them to save a few grams but nothing wrong with rectangular. Easy to use indeed. The jig took less than an hour to make. I just clamp it on the band saw table and then clamp the depth/width piece on separately to set depth & width. I got the idea from this video posted by a very talented man who sadly passed away shortly after making his first two archtops.
     
    new6659 likes this.
  13. 1883

    1883 Gretschie

    220
    Apr 12, 2015
    Aotearoa
    Onto the top now... book matched pieces glued together and marking out the F hole locations. The bridge should be positioned in between the pointy bits of the F hole.

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    Routing the F holes. The wide sections done with a 10mm bit, the narrow sections with a just fitting 6mm bit. No ball bearing on the latter, just running it straight against the edge of the template.

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    And F holes done - ready for gluing the binding in them.

    [​IMG]
     
  14. tolm

    tolm Gretschie

    269
    Jan 25, 2016
    UK
    “Smashed my wife’s drawers in”

    “Old wood”

    Too ... many ... jokes ...
     
  15. 1883

    1883 Gretschie

    220
    Apr 12, 2015
    Aotearoa
    Binding F holes. Why do I do it?

    Bending the binding... I use my soldering iron to bend these thin strips of ebony

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    Gluing them in and holding thing in place with miscellaneous items:

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    All done in a days work; I wet the wood to bring out the grain.

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    new6659 and RomanS like this.
  16. 1883

    1883 Gretschie

    220
    Apr 12, 2015
    Aotearoa
    Glued the top onto the body

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    then routed the excess top bits off and now it begins to look like a guitar. Finally...

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    Next the body binding and need to start thinking about colours...
     
    treeofpain and RomanS like this.
  17. 1883

    1883 Gretschie

    220
    Apr 12, 2015
    Aotearoa
    Routing the body binding with a routing bit without a ball bearing as I could not find one that would give the proper rebate depth. So used a bit of wood with rounded pointy bits in which the bit rotates freely. Crude, but it works. (Obviously done before the top went on).

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    Then bending the ebony strips to match the body curves...

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    Gluing the binding strips onto the body and holding them in place with some old inner bicycle tubes:

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    And the same for the top:

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    So this is where I am at currently with the body as I have started working on the neck now.

    [​IMG]
     
  18. 1883

    1883 Gretschie

    220
    Apr 12, 2015
    Aotearoa
    I suppose this is all rather dull stuff so let me try to brighten it up with some more colourful stuff....

    The kohekohe timber I am using for the sides and the neck is from quite an attractive tree with large bright green leaves and small, but pretty flowers. It only flowers every second year and the flowers grow on the trunk. Here is a photo of the kohekohe flower:

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    I have started making the neck and the fretboard has just been glued on today actually. I am using another NZ native for that, namely the puriri tree. Its timber is slightly greenish and its flowers are small but gorgeous. See photo...

    [​IMG]
     
  19. bhatta

    bhatta Gretschie

    146
    Jun 29, 2020
    Bangalore
    It looks really nice and appreciate your patience and workmanship

    Waiting to see the final outcome and hear it too
    Cheers... Keep rocking
     
    1883 likes this.
  20. 1883

    1883 Gretschie

    220
    Apr 12, 2015
    Aotearoa
    Thanks Bhatta, it is definitely a labour of (misplaced) love at times ;)

    The neck blank was sawn from a solid piece of 3″x 4″ kohekohe timber and has the headstock at an 11 degree angle.
    Some photos of making the neck... It is the bottom one for this build.

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    All routed and ready to glue the channel filler in. This bit of concave wood will keep the truss rod under tension.

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    Filler glued in...

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    Removing excess material:

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    All done, next up the headstock veneer and fretboard.

    [​IMG]
     
    bhatta and RomanS like this.
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