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Thread: Terrapin - a box boat in a box

  1. #36
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    Default Re: Terrapin - a box boat in a box

    Never before seen a boat go together anything like that, slightly mind bending, but I like what I see.

    Do you have any thoughts on how much a boat built from a kit might cost compared to the same boat built from raw materials?

  2. #37
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    Default Re: Terrapin - a box boat in a box

    Quote Originally Posted by Matt young View Post
    Didnít they used to ship broken down boats from Norway to Scotland, for assembly in Scotland? So nothing new here, a continuation of great traditions.
    Now that is cool! Didnt know that!

    I must follow this. In a strange way I like the sharpies. Maybe because they are so totally different to our traditional boats in Norway. Maybe something like this design could be buildt in traditional methods

    Fred

  3. #38
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    Default Re: Terrapin - a box boat in a box

    Quote Originally Posted by Matt young View Post
    Didnít they used to ship broken down boats from Norway to Scotland, for assembly in Scotland? So nothing new here, a continuation of great traditions.
    Not Scotland, the Shetlands. There are no trees on the Shetlands so they imported timber and boats from Bergen, that and sawing American/Canadian driftwood logs.
    It really is quite difficult to build an ugly wooden boat.

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  4. #39
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    Default Re: Terrapin - a box boat in a box




    Thats outrageous! That would find me sitting inside for a while dreaming and contemplating already. I have been tossing the idea back and forth with my box keel project between frame and stringers, or making the interior part of the whole structure, so it will be interesting to follow along. Certainly not cheating, but i would miss all the milling of the timber, though its not quite the same with plywood. I have just had a quote from a outfit in the UK to CNC a kit for Nano ship, which sadly John will not be making plans for; im hoping the client will go for it. Keep the updates coming.

  5. #40
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    Default

    Wow, this just might turn out to be one of my favorite threads ever on this forum. I like the design, and the kit and assembly looks cool.

  6. #41
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    Default Re: Terrapin - a box boat in a box

    Hows does this variant differ from the first that John H. drew? Is this the wider version that was meant to accommodate two people? I always liked this design and will enjoy watching the build.

    Jeff

  7. #42
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    Default Re: Terrapin - a box boat in a box

    That would find me sitting inside for a while dreaming and contemplating already.
    I'll confess to having put my shop stool in there and checking out the elbow room, and perhaps a bit of daydreaming, too.


    Quote Originally Posted by JeffD Marion View Post
    Hows does this variant differ from the first that John H. drew? Is this the wider version that was meant to accommodate two people? I always liked this design and will enjoy watching the build.

    Jeff
    The only real difference is in replacing the jib and main with a balanced lug. The cabin trunk is a bit longer just because John decided to do that. The two person version is an idea, but as far as I know there's nothing on paper at this point.
    -Dave

  8. #43
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    Default Re: Terrapin - a box boat in a box

    I think that the longer cabin trunk will make a world of difference in arranging oneself into the bunk.
    No adversary is worse than bad advice.

  9. #44
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    Default Re: Terrapin - a box boat in a box

    Do you have any thoughts on how much a boat built from a kit might cost compared to the same boat built from raw materials?
    Probably about double for the ply and timber, but the same cost for chemicals, sails, trailer, etc. For me it's worth the huge saving in time, plus it's hard to find the quality wood that came in the package. You could save a couple thousand or more piecing it together.
    -Dave

  10. #45
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    Default Re: Terrapin - a box boat in a box

    Sounds good. I found sourcing decent material for my build to be sometimes challenging. Getting decent ply supplied is a real bonus to the kit approach.

  11. #46
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    Default Re: Terrapin - a box boat in a box

    OK, I am watching and droooling.

  12. #47
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    Default Re: Terrapin - a box boat in a box

    late arriver so brought my own...
    00M0M_hFsxHcXBv6L_600x450.jpg

    let the fun continue

    sw
    "we are the people, our parents warned us about" (jb)

    steve

  13. #48
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    Default Re: Terrapin - a box boat in a box

    We'll, I'm away for a week to do some kayaking and visiting. When I get back the fun begins - put the sides together and wrap them around that box. The good thing about precut parts is that they are precut. The bad thing, of course is that they are precut. I'll have two floppy lengths of ply about 19' long, and they have to be pulled together so all of the internal panels fit to within about 1/16th of an inch. I'll do a dry fit, but I'm still puzzling over the finer points.
    -Dave

  14. #49
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    Default Re: Terrapin - a box boat in a box

    Where slab-sided topsides meet bulkheads, I'm always concerned about the bulkhead making a hard-point in the panel that's difficult to fair-out later.
    In a GRP boat, I'd do a cushion of foam between the bulkhead and the skin (trapezoidal, so no need for fillets before the glass tapes) to spread that hard-point out a bit, but I don't know if that works in this method.
    Do the CLC details address this?
    No adversary is worse than bad advice.

  15. #50
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    Default Re: Terrapin - a box boat in a box

    Quote Originally Posted by Figment View Post
    Where slab-sided topsides meet bulkheads, I'm always concerned about the bulkhead making a hard-point in the panel that's difficult to fair-out later.
    In a GRP boat, I'd do a cushion of foam between the bulkhead and the skin (trapezoidal, so no need for fillets before the glass tapes) to spread that hard-point out a bit, but I don't know if that works in this method.
    Do the CLC details address this?
    I expect the ply is thick enough that any hardpoint would not be noticable, and that hardpoint will cease to exist after the bulkheads are fillted and taped to the sides to spread any load. I will be using fore n aft battens around bulkheads on a build of similar size.

  16. #51
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    Default Re: Terrapin - a box boat in a box

    Two half-inch by one-inch stringers are glued to the inside faces before the sides are sprung on. Part of the trick is placing the stringers exactly where they need to be. Once the sides are in place, chine logs and sheer clamps are fitted, which should fair things out fairly well. We'll see.
    -Dave

  17. #52
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    Default Re: Terrapin - a box boat in a box

    Do you have a timeframe for completion in your mind? How many hours estimated?

  18. #53
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    Default Re: Terrapin - a box boat in a box

    wow, this is one to watch!

  19. #54
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    Default Re: Terrapin - a box boat in a box

    Quote Originally Posted by peb View Post
    Do you have a timeframe for completion in your mind? How many hours estimated?
    No idea about the hours, I work slower than many others. The goal is to get the big parts together before it gets too cold for epoxy work and do the fiddly bits through the winter. Spars, hatches, ballast, boards and rudder, fitting hardware. Self-imposed deadline is to have it at the CLC Okoume Fest next spring.
    -Dave

  20. #55
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    Default Re: Terrapin - a box boat in a box

    Subscribed. Looking forward to this.
    I hadnít seen the lug rig on CLCís website. Itís an excellent addition.
    Best of luck.
    St.John

  21. #56
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    Default Re: Terrapin - a box boat in a box

    Puzzle joints. What a great idea. It may be a box boat, but the sheer has been nicely drawn.

    sides assembled and sealed.jpg
    -Dave

  22. #57
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    Default Re: Terrapin - a box boat in a box

    Sweet!

    Kevin
    There are two kinds of boaters: those who have run aground, and those who lie about it.

  23. #58
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    Default Re: Terrapin - a box boat in a box

    Did you dsimatle the centre pod section to glue those panels up, or just shift it outside? I think the only disadvantage of full size panels is the room it takes to construct them........maybe i need a bigger workshop.....

  24. #59
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    Default Re: Terrapin - a box boat in a box

    The center unit is glued up solid, so I put it on a dolly and rolled it into the garage where my car usually sits. The car is outside getting baked - 93 degrees yesterday.
    -Dave

  25. #60
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    Default Re: Terrapin - a box boat in a box

    Quote Originally Posted by Woxbox View Post
    The center unit is glued up solid, so I put it on a dolly and rolled it into the garage where my car usually sits. The car is outside getting baked - 93 degrees yesterday.
    Haha. We are relieved itís DROPPED to the 90s. I have to take a nap so I can stay up late enough to do epoxy work.

    By center unit, do you mean the cabin area? The bit with the board cases and all? Curiosity is all. I dig the modularity of this design as much as the look and usefulness.

    It seems singular and average at the same time. Haha.

    Keep at it. It really is flying together!

    Peace,
    Robert

  26. #61
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    Default Re: Terrapin - a box boat in a box

    Right, the cabin area. It's a rigid box wilthout the rest of the boat attached. If if should ever break this boat, it will be all my fault. Construction seems to be highly redundant -- as I like it to be.
    -Dave

  27. #62
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    Default Re: Terrapin - a box boat in a box

    Well, it looks like it's about time to take the leap.

    ready for assembly.jpg
    -Dave

  28. #63
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    Default Re: Terrapin - a box boat in a box

    Things are about to get interesting.
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  29. #64
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    Default Re: Terrapin - a box boat in a box

    Wow, let us know how it goes pulling that bow into shape with those stringers already fixed in place.

  30. #65
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    Default Re: Terrapin - a box boat in a box

    man, this build is giving me the itch!
    No adversary is worse than bad advice.

  31. #66
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    Default Re: Terrapin - a box boat in a box

    Quote Originally Posted by skaraborgcraft View Post
    Wow, let us know how it goes pulling that bow into shape with those stringers already fixed in place.
    I’ve done it. Will again on my tri. Sometimes the stringers give a more fair bend with a long, floppy panel like that, especially when negotiating hard edged forms, bulkheads, mold, etc, and moreso when using the sides as a jig, too.

    The little pirogues I make, for example, are 1/4” ply with the chines and wales attached, then bent around the frame. The panels alone are WAY harder to get fair and true.

    That is my limited anecdotal experience acquired building “wooden” “boats”.

    Peace,
    Robert

  32. #67
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    Default Re: Terrapin - a box boat in a box

    Quote Originally Posted by amish rob View Post
    I’ve done it. Will again on my tri. Sometimes the stringers give a more fair bend with a long, floppy panel like that, especially when negotiating hard edged forms, bulkheads, mold, etc, and moreso when using the sides as a jig, too.

    The little pirogues I make, for example, are 1/4” ply with the chines and wales attached, then bent around the frame. The panels alone are WAY harder to get fair and true.

    That is my limited anecdotal experience acquired building “wooden” “boats”.

    Peace,
    Robert
    as Robert said long(14'+) panels do bend more fairly w/ skinny chines & wales(1x1Ī) attached than w/o or at least that was my experience w/ the 14'+ flat bottomed kayaks/canoes i have built

    HOWSUMEVER on shorter applications like the 8' Mini MouseBoats i just finished it doesn't work so well and the chines & wales(same 1x1Ī) tend to fracture when bent around the frames/bulkheads

    sw
    "we are the people, our parents warned us about" (jb)

    steve

  33. #68
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    Default Re: Terrapin - a box boat in a box

    Woxbox has a Whisp, as I recall, which similarly is built by gluing up the lapstrake sides on the flat. Then those lapped panels are wrapped around the mold. In that a plank lap is a stiffener, or a strake of sorts, he has relative building experience.

    Kevin
    There are two kinds of boaters: those who have run aground, and those who lie about it.

  34. #69
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    Default Re: Terrapin - a box boat in a box

    Right Kevin, I do have a Whisp. But it was my father-in-law who built it. I've been tinkering with it ever since I inherited it, but I wasn't the one to pull those sides together. Here's my first shot at the process, excepting a Bolger minimal kayak many years ago.

    First, the sides get clamps and a couple of drywall screws to hold them in position.

    sides on.jpg

    Then I start ratcheting, dry fitting the bulkheads as the sides come together.

    ends drawn in.jpg
    Last edited by Woxbox; 09-06-2018 at 09:14 PM.
    -Dave

  35. #70
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    Default Re: Terrapin - a box boat in a box

    I dropped in some of the horizontal pieces to check the bulkhead spacing and general fit. CNC rules! A couple of 1/8" trims was all that was needed.

    cockpit dry fit.jpg

    Now, about bending those sides with the stringers attached. The bow came together easily, but the stern calls for a much tighter radius around the aftermost bulkhead. I haven't gotten the stern entirely together yet. I left it ratcheted hard overnight so it can think over how it's going to behave when I get back to it.
    Last edited by Woxbox; 09-06-2018 at 10:06 PM.
    -Dave

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