A fast question about sandwich hulls

Discussion in 'Boat Design' started by Sietse, Feb 13, 2014.

  1. Sietse
    Joined: Jan 2014
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    Sietse Junior Member

    Hello,

    I had a plan for the production of several ``wooden`` boats.

    Design a retro boat model, like riva but with a rounder back, like Minett Shield Racer

    Make the boat from mdf and make it smooth.
    Then make a 3 or 4 piece female mold of it.

    Lay fiberglass and epoxy inside it an lay on the fiberglass multiplex squares of 3 by 3 cm
    And when its dry another layer of fiberglass

    After that vineer the hull and finish

    Does anyone got information about something in that line?
    I heard they use it for sailboat hulls

    Yours sietse

    Sorry for my lack of english
     
  2. Sietse
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    Sietse Junior Member

  3. Sietse
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    Sietse Junior Member

    Keep in mind that the test on the photo is with polyester, since i diddent had epoxy at home :rolleyes:
     
  4. FAST FRED
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    FAST FRED Senior Member

    Due to the scaling a boat model usually needs ballast to bring down to the waterline.

    Why the ultra light weight construction ? Is this a race boat?
     
  5. boatbuilder41
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    boatbuilder41 Senior Member

    $$$$$$$$$$$$$$$$$$$ and $$$$$$$$$$ and more $$$$$$$$$$$$$$$$$$$
     
  6. rwatson
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    rwatson Senior Member

    Its totally do-able, but you arent going to get a booklet specifically called "Making wooden boats from fibreglass moulds."

    There is a world of information in the Boatbuilding/Fibreglass forum - well worth a search.

    There are heaps of "how to" videos on Youtube.

    You seem to have the basics mastered from your photos - what is it that you need to know ?
     
  7. waikikin
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    waikikin Senior Member

    Sietse,

    So you want to build a cored glass boat, sounds like you need a contour cut core material for the sandwich & then overlay the above water areas with a nice veneer to clear finish.
    Have the best of both worlds, sounds great, kinda similar to doing an overlay deck or transom. Maybe some fiddly fitting & vac bagging to get reliable glue lines under your veneer but totally doable. http://www.corematerials.3acomposites.com/fileadmin/pdf/Introduction_to_cores.pdf
    All the best from Jeff
     
  8. Sietse
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    Sietse Junior Member

    Thanks for your replies everyone!

    @ FAST FRED:

    Well i find a polyester hull too heavy, and i want to make an electric drive or a outboardbun in it (dont know how to spell it :p)

    and in my opinion is if you make an 4m or 5m boat if you count the material cost it is not much more, its more the shape of the boat what matters.

    and if you find a fast way to make a nice shaped boat like the minett shield racer then it could be profitable

    atleast thats what i think.
    maybe you guys got some other suggestions?

    yours,
    sietse
     
  9. waikikin
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    waikikin Senior Member

    Hi Sieste,

    I don't know the minette shield but if it looks & goes good just have a go, if you want profit, sounds good... just need to work harder, better & faster so go home proud & happy of what you achieved..... that's the best profit in boat building, makes you feel good between the ears;)

    Jeff.
     
  10. Sietse
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    Sietse Junior Member


  11. Sietse
    Joined: Jan 2014
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    Sietse Junior Member

    thanks for the positive peptalk everyone, ;)

    ps: the link to the corematerials is also very helpfull
     
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