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Thread: "1290" Class M Hard Multi Chine Hull

  1. #11
    Join Date
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    Default Re: "1290" Class M Hard Multi Chine Hull

    Further work with filler the same used to repair plaster wall. Easy sanding !
    Some additional images showing the bow problem ! Regularity of shape profile, similarly will be done on other chine corners although eyes view will be sufficient !
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  2. #12
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    Default Re: "1290" Class M Hard Multi Chine Hull

    Progressing, rocker rectified, general sanding, support legs added, fiberglass 85g/m tissue precut.
    Legs needed to keep the hull above the plan to allow fiberglass epoxy lamination without interferences.
    see pictures :
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  3. #13
    Join Date
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    Portland, Tennessee, USA
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    21

    Default Re: "1290" Class M Hard Multi Chine Hull

    Coming along nicely Claudio.

    Some questions occurring to me when i look at the reverse sheer of the hull shape:
    I was wondering if you were going to split the hull in half in order to remove the fiberglass epoxy lamination from the mold? Perhaps because of the thin hull surface you will be able to “flex” the hull off the mold? Perhaps the reverse sheer is not as pronounced as it looks? Or maybe you’re just going to tear up the mold in the process of removing the laminated hull?

    Watching your progress with enjoyment.

    Cheers,

    Clark

  4. #14
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    Default Re: "1290" Class M Hard Multi Chine Hull

    Hi Clark,

    the reverse sheer is not very important it should not present problems. The fiberglass blades will help a lot.

    So tomorrow I will laminate the mold. 24hours later defect correction if needed.

    Once the mold is ready I will start the hull lamination with 3 layers of fiberglass of 85g/m.

    During polymerization I will cut the female shadows at 11, 9, 7, 5, 3, and A positions used as hull support.

    Cheers

  5. #15
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    Default Re: "1290" Class M Hard Multi Chine Hull

    Two days of heavy rain and RH above 80%, thus no lamination until this morning.
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  6. #16
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    Default Re: "1290" Class M Hard Multi Chine Hull

    External lamination completed, today internal brushing with Epoxy resin...50 pictures up to now !

    Next I will use spray primer and soft sanding to remove tissue rugosity before applying packing tape.

    The white small pots filled with lead shots are used to keep the hull standing-up vertically
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    Last edited by claudio; 03-15-2017 at 11:10 AM.

  7. #17
    Join Date
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    Minnesota USA
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    Default Re: "1290" Class M Hard Multi Chine Hull

    Hi Claudio -

    will all of those ribs/stations stay in place when done, or is there a plan to remove them. Obviously if using as a plug to layup plain glass hulls, there is no need to lighten the weigh of the plug.

    Nice job - looks great.

    Dick

  8. #18
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    Default Re: "1290" Class M Hard Multi Chine Hull

    Hi Dick,
    all the remaining parts of the shadows remain in place, no need to remove them since participating to the strength of the plug.
    Cheers

  9. #19
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    Default Re: "1290" Class M Hard Multi Chine Hull

    Surface filler all over the glass coated hull.
    Only for dry conditions, no water.
    This filler is easy to sand and used to remove rugosity before applying packing tape.
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  10. #20
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    Default Re: "1290" Class M Hard Multi Chine Hull

    My preferred activity : sanding !!!
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