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tremblap

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    six string Tunomatic bridge with RMC piezos

    in Build Diaries

    Posted

    ok I went to Pierre Laporte's place last time I was in Montreal... took some pictures too!

    So here is the book match glued and partly emptied body (curly spruce)
    [attachment=79131:body.JPG]

    It is a six string fretted and to go with the assymetry of the top (curly spruce) we will go with a one piece two coloured Macassar Ebony fingerboard. First the pieces (neck and sample wood) then a guitar neck with a similar finish.

    [attachment=79132:fingerboard.JPG]
    [attachment=79133:neck_and_top.JPG]
    [attachment=79135:neck_guit.JPG]
    [attachment=79136:neck_guit2.JPG]
    [attachment=79138:neck_guit3.JPG]

    and finally, the man with one of my current basses (I have been tuning/adjusting them since I moved in England, so I brought it back to the boss to see if I've done well... he seemed impressed ;-)

    [attachment=79139:theman.JPG]

    Comments welcome.

    pa

    six string Tunomatic bridge with RMC piezos

    in Build Diaries

    Posted

    OK some more pictures!

    in this first one you can see the four stages of the bridge CNC

    [attachment=71729:SAM_0010.JPG]

    the leftmost is the 'powder 3d print' of the 1st generation of CADs, the one that Pierre saw in Montreal and proposed improvements on.
    the second is the 'plastic 3d print' of the improved CADs, which was ready for production
    the third is the aluminium 'draft' CNC that was testing the mechanical process
    the fourth is the steel 'draft' with other problems in the mechanical process.

    In other words, we are on our way!

    This second picture shows the 'plastic 3d print' of the wagon that will hold a RMC piezo (with one on it!)

    [attachment=71732:SAM_0036.JPG]

    Finally this third picture is to show the 'system' in action... you can see the threading in the wagon to allow the adjustment screw.

    [attachment=71731:SAM_0032.JPG]

    I spoke to Pierre, the wood is ready to cut... I decided to go with 2 Villex pickups with the variable mid.

    This instrument will be awesome!

    pa

    six string Tunomatic bridge with RMC piezos

    in Build Diaries

    Posted

    The great thing is that Huddersfield has a research centre in ultra-precision CNC control. The person I met (Simon) needed a fun project to learn a new piece of software... he has been amazing on the project, and I (being a musician) was completely flabbergasted by the computer models, the 3d printers (one with powder, one with plastic) that allowed us to improve the design before cutting metal.

    Pierre has had some clever ideas when he saw the powder printing, I left it with him so he should send me pictures soon for here to share... and I'll take picture of the second printing (3d) in the new year and will post them here too.

    I know the bass would sound great anyway, Pierre is a world-class luthier. Actually, every bass player who tried one my basses he made were totally impressed... and I never tried a bass that I would have swapped for one of mine...

    But this project is just so exciting... now I'll go practice to be worthy of his instruments! In the meantime, a couple of picture of the guy's shop, in Montreal.

    [url="http://www.djangomontreal.com/doc/PierrePhotos.htm"]http://www.djangomontreal.com/doc/PierrePhotos.htm[/url]

    pa

    six string Tunomatic bridge with RMC piezos

    in Build Diaries

    Posted

    btw those who worry about their tax money: please consider that 1) the average academic in this country works 56hours a week for a 37 hours contract (and as I 'young' academic I am seriously above that!) 2) we are underpaid on any international standard (apart from the French ;-) 3) this country is planing cuts beyond anything that makes sense despite the downhill in international rankings... 4) the list can go on and on...

    No worries, I was not too offended ;-)

    p

    six string Tunomatic bridge with RMC piezos

    in Build Diaries

    Posted

    OK I'm still waiting for Pierre (the luthier) to send the pictures of the wood and the 3d printing of the 1st generation, but here are the CAD of the 2nd generation. The piezo wagon are now small enough to fit in the wholes so we can change the bridge to different metals (alu, steel, bronze are planed) so we can test how it affects the sound without resoldering!

    I also decided to go for Villex pickups with their passive mid-sweep... it should be great!

    Comments/questions welcome.

    p

    ===

    [attachment=66925:guitar_b...ndered_8.jpg]
    [attachment=66926:guitar_b...ck_shiny.jpg]
    [attachment=66927:guitar_b...ed_black.jpg]

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