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  1. #1

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    how to scratch build hulls?

    My basic plan is to build a 1/72 or bigger wet hulled rc akula from scratch as i don't feel like shelling out for the fibreglass hulls, are there any particularly good or recognised ways of making a submarine hull other than making a fibreglass mould route?

    My plan is to make an internal Skelton out of ply and then cover it in something i haven't decided on yet for the outer hull perhaps thin ply but that might e a bit delicate.

    My questions are does my current planned route work or is it doomed to fail and is making a fibreglass mould and doing it that way as difficult as it looks and if not are there any good guides on how to do it.

    Thanks in advance
    twiggy


  2. #2

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    RE: how to scratch build hulls?

    Here's how I am producing molds. The plug is made from foam board and then covered in drywall filler. It's easy to sand and it's sealed with KILZ drywall sealer.

    http://forum.sub-driver.com/showthre...ass-1-72-scale


  3. #3

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    RE: how to scratch build hulls?

    Unless you plan to make several hulls, a "fiberglass resign" mold is expensive. It's now $ 35 or more a gallon.

    However FYI as an example

    http://groups.yahoo.com/group/Jetnautilus/

  4. #4

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    RE: how to scratch build hulls?

    I had a feeling that might be the case, are the any perticularly recommended techniques for just producing one off hulls or is fiberglass the only way?

  5. #5

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    RE: how to scratch build hulls?

    There is another method to copy a plug using a layered buildup of a rubberlike mold material. Such a mold is less durable than a fiberglass resin type, but may be suitable for limited reproductions. A google search should bring up several detailed discussions describing the method and materials.

  6. #6
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    RE: how to scratch build hulls?

    Steve neil made a book called RC Submarine modeling for dumb asses
    http://sneillfx.com/page28

    It really is worth the purchase price.

    There are also quite a few build threads on the "lost foam" technique on www.subcommittee.com
    Most recently one from a guy doing his first scratch built Russian Alfa


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