Fast Build Scale Model

Discussion in 'Projects & Proposals' started by rwatson, Dec 11, 2011.

  1. Willallison
    Joined: Oct 2001
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    Willallison Senior Member

    Here is a pic of the framing for Graphite as promised...
    As you can see, there's quite a similarity between the shapes... which is interesting since one is a planing powerboat and the other is (primarily) a sailboat! Unlike yours though, Graphite is set up for strip planking, so the shape is not developable...
    We went for the female molds of a number of reasons... but primarily for a couple that were mentioned above - like being able to install much of interior structure (2nd pic) prior to turning the boat
     

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  2. JRD
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    JRD Senior Member

    Hi Will, nice build there. What have you strip planked with there? Is it Kiri or Balsa, it sure doesnt look like cedar.
     
  3. Willallison
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    Willallison Senior Member

    It's kirri.Sheathed inside & out, with composite panels for all the remainig panels
     
  4. JRD
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    JRD Senior Member

    Will, thanks for that. I have been looking at Kiri for a 14' racing dinghy. Have you found it to be a good material to work and easy to bend into shape etc.
    Did you use plain planks glued with epoxy?

    thanks, Jeff
     
  5. Willallison
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    Willallison Senior Member

    Yep - very easy to work.
    We used 19mm thick bead & cove for the planking. Epoxy for everything
     
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  6. rwatson
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    rwatson Senior Member

    Moaning Chair

    Are you happy to say where you got your Kiri from Will ?

    I was just reading about the thing called a 'moaning chair', for boatbuilders and other types of builders. I was sitting in mine for a bit today.

    I made a bit of a blue on my model, putting in the first daggerboard slot - I made the hole at the wrong frame, so I have a big hole to fill.

    Luckily I am using hi-density foam at that location, so repairing and filling isn't all that much of a problem.

    Foam is sure the way to go with models - its just a case if waiting for the epoxy to cure before the next stage.

    "Is there nothing faster than fast set epoxy ?" in voice of Homer Simpson.

    I really need a large scale 3d printer - Santa ?????
     

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  7. Willallison
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    Willallison Senior Member

    Merry Xmas RW....
    Yep - I'll dig out the contact details for the Kirri.... Mine came from WA as it was pretty much the only place that sold the stuffv reliably at the time. I haven't dealt with them personally, but I've been told about another crowd in Victoria that sell it nowadays... Will let you know as soon as I can get in to my office (which is currently doubling as a spare room for the in-laws, who are have a snooze after a big Xmas lunch....;)
     
  8. rwatson
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    rwatson Senior Member

    ooooh - it was a while ago. No worries - its Port Phillip Plantation shutters in Melbourne nowadays according to some recent sources.

    Have you got any stock timber left, or was the boat built a while back ?

    I am just watching 'Dennis the Menace Xmax' - how many times can they show this ?. There should be a maximum usage limit to every film.

    Hope your lunch was as good as mine. Wahoo !
     
  9. Willallison
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    Willallison Senior Member

    April 2008... it was Highpoint Timber.....
    I do have a little left over, not a great deal, but I'm planning on using it for another project
    Lunch was indeed nice... waterfront property at Kettering. I had hoped to be away on the boat, but that'll have to wait till the end of the week....
     
  10. Ad Hoc
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    Ad Hoc Naval Architect

    Best Kirri comes from WA...wonderful wood :)
     
  11. Willallison
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    Willallison Senior Member

    Yes - there was precious little being grown in Oz when I built Graphite... most coming from China. It's a happier picture these days...
     
  12. rwatson
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    rwatson Senior Member

    Attached Files:

  13. rwatson
    Joined: Aug 2007
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    Location: Tasmania,Australia

    rwatson Senior Member

    Attached Files:

  14. tunnels

    tunnels Previous Member

    Just a point of interest the shiney patchs of rsin laying in the bottom !! Go find some peel ply and roll it over the top when you do your glassing it will get shot of the resin and make the job a lot bettr looking and you can peel pff and glass straight way .Peel ply can be your friend !!:D
     

  15. rwatson
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    rwatson Senior Member

    Thanks for the input there Tunnels, me ol' mate.

    Those photos were taken when the epoxy was still wet. Funnily enough, I decided not to use peelply on this particular section of the hull, like I have done on 80% of the rest of it.

    The reason is, that there were some tricky compound curves that the fibreglass had to cope with ( the intersections of the ribs). In the last application, the glass had no trouble laying itself around the tricky bits, but the peelply insisted in bunching up and creating 'orrible messes of the underlying glass. The hassle of making finicky dart cuts, and having to pull the small bits out after cure, is a real putoff also.

    So, I left it of this time. The other side of the equation is that this interior wont be seen, but the smooth foredeck and transom are both products of peelply - wouldnt be without it!
     
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