JIM, an 18 foot canoe yawl.

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  • Duncan Gibbs
    Ninety percent sandpaper
    • Oct 2007
    • 18336

    #31
    Re: JIM, an 18 foot canoe yawl.

    Somehow a spiling batten still seems to be the quicker, but just as accurate method as building ply or cardboard templates. I can understand (and have used) cardboard templates that fit into a hull, deck, floor, but why reinvent the wheel when it comes to planking? Just seems like a waste of time to me.
    Jarndyce and Jarndyce

    The Mighty Pippin
    Mirror 30141
    Looe
    Dragon KA93

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    • PeterSibley
      Senior Member
      • Dec 2001
      • 70993

      #32
      Re: JIM, an 18 foot canoe yawl.

      What I like about the trussed template idea is that it is self fairing in that it gives top and bottom battens to sight, it then gives a router guide for the next step.
      '' You ain't gonna learn what you don't want to know. ''
      Grateful Dead

      Comment

      • Duncan Gibbs
        Ninety percent sandpaper
        • Oct 2007
        • 18336

        #33
        Re: JIM, an 18 foot canoe yawl.

        Originally posted by PeterSibley
        What I like about the trussed template idea is that it is self fairing in that it gives top and bottom battens to sight, it then gives a router guide for the next step.
        It strikes me that running top and bottom, self fairing battens to use as router guides is still going to be about 20 times quicker run betwixt compass points than stapling, or hot gluing hundreds of little truss chords that have to also be made in the first place, cut to size during the spiling process and then disposed of. If you're building more than one Jim then I'd say it would be a worthy process. Besides, the lead at the end of a compass is just about free for cost!
        Jarndyce and Jarndyce

        The Mighty Pippin
        Mirror 30141
        Looe
        Dragon KA93

        Comment

        • PeterSibley
          Senior Member
          • Dec 2001
          • 70993

          #34
          Re: JIM, an 18 foot canoe yawl.

          Hmmm, not that many bits, probably ply squares or triangles in my case plus gyprock screws and the trust battery drill.
          '' You ain't gonna learn what you don't want to know. ''
          Grateful Dead

          Comment

          • TerryLL
            Lake Pend Oreille Idaho
            • Mar 2007
            • 9790

            #35
            Re: JIM, an 18 foot canoe yawl.

            I have to say I've always thought the trussed template method was a lot of busywork. Compared to a simple spiling batten it is infinitely slower and not a bit more accurate. The one thing the trussed template does provide is a pattern that can be used with a router to cut the plank shape.

            However, and this is a big one, I always cut my planks about 4mm oversize on both sides, then offer up the plank for a test fit, and then do the final trim. If you're using a trussed template, and cutting to its exact shape, you better darn well be sure your template is perfect, because there's no extra meat on the edges for adjustment.



            A simple ply spiling batten and a compass are all you need to exactly record the plank shape from the boat and molds. Once these points are transferred to the plank stock, the dots are connected using a fairly stiff fairing batten, assuring a fair curve to the plank edges. Cut the darn thing out a bit oversize with a skillsay and clean the edges with a low-angle block plane. Then do a trial fit, trim a bit as necessary, and hang it. It's the method developed by the old timers and it still works just fine today.

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            • Terry Haines
              Senior Member
              • Jul 2009
              • 387

              #36
              Re: JIM, an 18 foot canoe yawl.

              Woah! Let's not get too excited over this!

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              • m2c1Iw
                LPBC Member
                • Feb 2008
                • 819

                #37
                Re: JIM, an 18 foot canoe yawl.

                OK I'm hardly an old timer just a backyard hack but I'll throw my spiling batten into the ring and say having done it both ways compass spiling is quicker, accurate (just make sure you remove previous marks) less wasteful and more satisfying but hey as they say whatever floats your boat.

                Just a note on the truss method 1" or so ply battens instead of wood work better as they conform to the hull shape easier.

                Cheers
                Mike
                Last edited by m2c1Iw; 07-29-2012, 07:56 PM.

                Comment

                • TerryLL
                  Lake Pend Oreille Idaho
                  • Mar 2007
                  • 9790

                  #38
                  Re: JIM, an 18 foot canoe yawl.

                  Originally posted by Terry Haines
                  Woah! Let's not get too excited over this!
                  Ain't nothin' more important to get excited about than how best to spile a plank.

                  Comment

                  • jim_cricket
                    Senior Member
                    • Jan 2008
                    • 914

                    #39
                    Re: JIM, an 18 foot canoe yawl.

                    Originally posted by TerryLL
                    Ain't nothin' more important to get excited about than how best to spile a plank.
                    While we're waiting for Peter to catch up, we could also argue about cutting the planks- jigsaw or skilsaw. Can't use a router with my cardboard templates.

                    Comment

                    • TerryLL
                      Lake Pend Oreille Idaho
                      • Mar 2007
                      • 9790

                      #40
                      Re: JIM, an 18 foot canoe yawl.

                      Originally posted by jim_cricket
                      While we're waiting for Peter to catch up, we could also argue about cutting the planks- jigsaw or skilsaw. Can't use a router with my cardboard templates.
                      No debate needed. Skilsaw with fine tooth narrow-kerf blade set shallow. I think this thread may be drifting.

                      Comment

                      • Duncan Gibbs
                        Ninety percent sandpaper
                        • Oct 2007
                        • 18336

                        #41
                        Re: JIM, an 18 foot canoe yawl.

                        Originally posted by m2c1Iw
                        OK I'm hardly an old timer just a backyard hack but I'll throw my spiling batten into the ring and say having done it both ways compass spiling is quicker, accurate (just make sure you remove previous marks) less wasteful and more satisfying but hey as they say whatever floats your boat.

                        Just a note on the truss method 1" or so ply battens instead of wood work better as they conform to the hull shape easier.

                        Cheers
                        Mike
                        Peter? Are you paying attention?
                        Jarndyce and Jarndyce

                        The Mighty Pippin
                        Mirror 30141
                        Looe
                        Dragon KA93

                        Comment

                        • PeterSibley
                          Senior Member
                          • Dec 2001
                          • 70993

                          #42
                          Re: JIM, an 18 foot canoe yawl.

                          I know spiling works ! There's really no argument, I guess I just like the aesthetics of the truss.... we'll see how it goes when that job arrives but Jim says planking is a little way off. I'm just about to rip the laminates for my stem and stern post inners .
                          '' You ain't gonna learn what you don't want to know. ''
                          Grateful Dead

                          Comment

                          • Duncan Gibbs
                            Ninety percent sandpaper
                            • Oct 2007
                            • 18336

                            #43
                            Re: JIM, an 18 foot canoe yawl.

                            I guess I just like the aesthetics of the truss....
                            In that case I'll not have a bad word spoken about black skivvies!
                            Jarndyce and Jarndyce

                            The Mighty Pippin
                            Mirror 30141
                            Looe
                            Dragon KA93

                            Comment

                            • RFNK
                              Port Stephens, Australia
                              • Feb 2007
                              • 26941

                              #44
                              Re: JIM, an 18 foot canoe yawl.

                              Only a Victorian would wear a black skivvy!

                              Oi Peter, you sneaky bugger! There I was in blissful ignorance waitng for your thread to start and here it is already! It's great! Good luck with the build, the design looks really nice (although it now looks like we're going to have a plague of sprits up there in the deep North!). I like the little trusses method too - it just eliminates so much of the room for error. I'd go with the air stapler though.

                              Rick
                              Rick

                              Lean and nosey like a ferret

                              Comment

                              • Vernon
                                Senior Member
                                • Oct 2010
                                • 1073

                                #45
                                Re: JIM, an 18 foot canoe yawl.

                                I'm ready to start planking, so this is an interesting discussion. Spiling a good plank I mean, no opinion on black skivvies.

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