Origami Prami (ish)

Discussion in 'Boat Design' started by lewisboats, Jul 17, 2012.

  1. lewisboats
    Joined: Oct 2002
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    Location: Iowa

    lewisboats Obsessed Member

    Meet Pugsley, Stitch and Glue Dinghy/Tender

    6'9" long
    3'11" beam
    315 lbs displacement
    45 lbs Approx weight in 4mm Okoume

    [​IMG]

    Pugsley and plywood like each other...no nasty red spots.

    [​IMG]

    FS doesn't do darts or origami so just pretend the bottom panels are one and have a dart cut in them for the bow forefoot. Panel layout should be pretty easy...no really hard curves and no scarphing

    [​IMG]

    Using some creativity you could get this out of 2 sheets of standard plywood, some cedar for a center frame and single longitudinal seat and some tougher stuff for the gunnels and 1 or two small skegs.


    Whadayathink?
     
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  2. Angélique
    Joined: Feb 2009
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    Location: Belgium ⇄ The Netherlands

    Angélique aka Angel (only by name)

    Maybe a tip...

    On Enigma's built Matt Layden cut out handles on the front of the bottom panel to pull the dart cut together and twist the forefoot, then glassed the forefoot parts together and then, after curing, cut off the handles . . . . :idea:

    At least that's mine interpretation of the pictures . . . . .

    Guess at the end of the cut we see a transverse glass strip on a scarf joint to lengthen the bottom panel.

    [​IMG]

    ^ Still flat, she has a small dart + a long cut.

    [​IMG]

    ^ Start pulling.

    [​IMG]

    ^ Note the handle cut off lines.

    [​IMG]

    ^ Before glassing, note the dart edge is bevelled.

    [​IMG]

    ^ Bottom & side panels wired up.​

    Good luck with Pugsley !

    Cheers,
    Angel
     
  3. Angélique
    Joined: Feb 2009
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    Location: Belgium ⇄ The Netherlands

    Angélique aka Angel (only by name)

    Got the pics from here, just found the process explained here, most of the bottom is on the second link there.

    Good luck !
    Angel
     
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  4. rwatson
    Joined: Aug 2007
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    Location: Tasmania,Australia

    rwatson Senior Member

    Great contribution - thats a really valuable technique to know about.

    I guess the other method if there isnt enough ply available, is to bolt from solid timber 'handles to the bow to get a way to winch the ends together,
     
  5. hoytedow
    Joined: Sep 2009
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    Location: Control Group

    hoytedow Carbon Based Life Form

    I like it. Have fun. Shall you build it on a Wednesday and will it be a smooth ride or Lurch about?
     
  6. Angélique
    Joined: Feb 2009
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    Location: Belgium ⇄ The Netherlands

    Angélique aka Angel (only by name)

    Yes, great contribution of Matt that is [​IMG]

    Matt's is an Enigma 360 (± LOA in cm), here's the build of an Enigma 460 prototype, on March and April 2007 from the bottom up you'll see the bottom job of that one.

    Cheers,
    Angel
     

  7. lewisboats
    Joined: Oct 2002
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    Location: Iowa

    lewisboats Obsessed Member

    Not planning to build this...just noodling. I don't have a large boat requiring a tender right at the present moment...(haven't ever and probably will never be able to afford one to be truthful).
     
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