Foam / Plywood Boat Plug Construction ?s

Discussion in 'Materials' started by cla17, May 18, 2003.

  1. cla17
    Joined: May 2003
    Posts: 21
    Likes: 0, Points: 0, Legacy Rep: 10
    Location: San Diego, CA

    cla17 Junior Member

    Hello,

    Background: :)
    I am trying to build my dream 21'6" ski/wakeboard boat. I want to build a plug for an actual production style mold(I trying to build this into a business). I have some auto body and boat maintenance repair knowledge. I have had little experience with fiberglass and none with gelcoating.

    Situation: :(
    I have a design I want to build but and am on a budget(who isn't) and want to build a 2 part Poly foam and plywood plug. The plywood for support and the foam exterior shaped to the desired shell. I plan to use a Versi-Foam system to spray the foam, unless you someone knows of a better foam for shaping, but I don't know what tools I'm going to need to shape this stuff and how I am going to coat this foam to be able to lay-up a mold on it?

    Questions: :?:
    - Is this the right foam(Versi-Foam) to use for this large project?

    - What tools am I going to need to shape this foam?

    - And what do I need to coat this foam in, to be able to lay-up a mold on it?

    Gratitude: :D
    Any advice is GREATLY appreciated and will garnish good karma, my eternal thanks, and a free ride on the finished product whenever you are in Sunny San Diego.

    Thanks,

    Chris Anthony

    Design pics: :eek:

    [​IMG]
    [​IMG]
    [​IMG]
     
  2. yipster
    Joined: Oct 2002
    Posts: 3,486
    Likes: 97, Points: 58, Legacy Rep: 1148
    Location: netherlands

    yipster designer

    hello cla17
    only a question back here on a not asked subject. why do ski boats always use a shaft or v drive? why not a sterndrive, to much wake? for more Versi-Foam system info i'm on the mail list now also.
    yipster
     
  3. cla17
    Joined: May 2003
    Posts: 21
    Likes: 0, Points: 0, Legacy Rep: 10
    Location: San Diego, CA

    cla17 Junior Member

    Howdy Yipster,
    Outdrive boats are notoriously bad at holding speed and because the prop is low and very far behind the boat bow rise is a problem. Because of this the hull needs to be more of a V shape. Ski boats want to stay high on the water(a plaining hull) so the V hull is a bad choice, also skiers need a very constant speed. Wakeboarders fair better with a V hull but hate the unpridictable speed and the wake a V hull throws is also a little odd. All in all, direct or V-drives just prove to make better ski/wake boats. Predictable speed, constant wake/no wake for skiers, and more direct power to prop. Hope that answers your questions.

    :)
     
Loading...
Forum posts represent the experience, opinion, and view of individual users. Boat Design Net does not necessarily endorse nor share the view of each individual post.
When making potentially dangerous or financial decisions, always employ and consult appropriate professionals. Your circumstances or experience may be different.