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  1. Replies
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    Re: 20 Foot Gorewood Freigtht Canoe

    Aside from the reinforcement provided by the fiberglass coating on both sides, the bottom is partially doubled up with an additional plywood element.
    ...
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    Re: 20 Foot Gorewood Freigtht Canoe

    Thanks Rob and Todd for the flattering comments.


    Todd, I totally agree with you about the propulsion of a canoe this size and thanks for pointing that out.

    It wasn't because the cardboard...
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    Re: 20 Foot Gorewood Freigtht Canoe

    To get an idea of the size of the canoe I made this video of the paper model.
    A rough estimate shows that with a displacement of 600 kg and a draft of 20 cm, about 25 cm of freeboard would remain....
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    Re: 20 Foot Gorewood Freigtht Canoe

    Thanks for the suggestion.


    In this variation of the design, I added a small transom to allow mounting of a trolling motor or small outboard motor. For a canoe of this size with substantial...
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    20 Foot Gorewood Freigtht Canoe

    I have shifted my focus on Gorewood canoes to the Song of the Paddle forum, as a small community of builders and interested people has developed there, which was mainly triggered by Peter's fantastic...
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    Re: Plywood Canoe Concept - Birchbark Style

    PDF of the offsets for Abmy: https://drive.google.com/file/d/15d1QusS-jXU7CFu4xZLx3CpbbEFStlO-/view?usp=sharing


    PDF bow/stern curve:...
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    Re: Plywood Canoe Concept - Birchbark Style

    I understand your concerns about not being able to get the finished canoe out of the basement through the window, so I don't want to talk you into anything you might regret.

    Purely in terms of...
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    Re: Plywood Canoe Concept - Birchbark Style

    Considering the time that passes before I reply, slo-mo would probably be a more appropriate name.

    I must apologize in particular to Johan AKA "The Stripper" for once again responding so late....
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    Re: Plywood Canoe Concept - Birchbark Style

    Since the shape of the canoes I have made using the Gorewood construction method is influenced by a variety of factors (cutting pattern for the panels; thickness and type of plywood; wood type,...
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    Re: Another two sheet rowboat design- "Big Guide"

    Cool boat, there's a lot going on - I'm excited to see what happens next.

    https://i.postimg.cc/nzJTwfH9/20210926-155817.jpg
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    Re: Romax - a two sheet rowboat

    No news on building my own Romax.


    Lately there has been some interest in the smaller Anders' version (12' 2"), so I took another look at the design and decided to make a small change.


    Only...
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    Re: Baby Boat - the one sheet boat madness continues

    Finally, we tried to test the limits of the load-bearing capacity by putting a third person on board.

    Now it becomes uncomfortable both in terms of space and stability and especially getting in...
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    Re: Baby Boat - the one sheet boat madness continues

    This is pretty rough unedited footage, but still shows very well what I wanted to demonstrate.

    The shots of boarding the boat from the dock look like something out of a slapstick movie, but we...
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    Re: Baby Boat - the one sheet boat madness continues

    This mini-video series is intended to show how the boat behaves under different loads under ideal conditions. Let's start with a person (85 kg), which together with the weight of the boat (16 kg) and...
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    Re: Baby Boat - the one sheet boat madness continues

    I designed this one sheet boat in 2010 and built it in 2011/2012. Shortly after completion it was in use twice and has been dry-stored since.

    I have always wondered how much payload the boat can...
  16. Re: Taking the lines of a hull with the help of photogrammetry

    Hi Jonathan, I was just busy with my posting while you were asking your question. Funny enough, it seems that without knowing your question, I have already answered it.
  17. Re: Taking the lines of a hull with the help of photogrammetry

    The lines plan I was ultimately able to create is an image of the canoe actually built.
    Therefore, these lines also ruthlessly reflect all inaccuracies that occurred during the build. The next task...
  18. Re: Taking the lines of a hull with the help of photogrammetry

    Certainly an alternative to my approach.


    I was pleased with the way the clay slurry worked. It is cheap, easy to apply and also easy to wash off. It is a natural material and causes no...
  19. Re: Taking the lines of a hull with the help of photogrammetry

    The 3D model of my Gorewood Cottage Cruiser 16 Canoe constructed with Agisoft Metashape 1.7.3 Standard Edition exported to Rhino, where the lines were added to the model.

    ...
  20. Re: Taking the lines of a hull with the help of photogrammetry

    I am really pleased with the quality of the result.

    Dense cloud:...
  21. Re: Taking the lines of a hull with the help of photogrammetry

    I'm back working on the Gorewood Cottage Cruiser trying to get a similar, if not better, result to the Gorewood 14.


    First, I got rid of the pieces of tape. The Harlequin look makes for a...
  22. Re: Taking the lines of a hull with the help of photogrammetry

    Also featured in Water Craft Magazine July/August issue

    TAKING OFF THE BOAT’S LINES – Photogrammetry, laser scanning: Andrew Wolstenholme on how we’ll do it tomorrow:
    ...
  23. Re: Taking the lines of a hull with the help of photogrammetry

    After importing the 3D object into Rhino I am able to create a proper set of lines which was the goal in the first place.
    ...
  24. Re: Taking the lines of a hull with the help of photogrammetry

    Here is the next iteration in my endeavor to somehow master the magic world of photogrammetry.

    This time my Gorewood 14+ solo canoe is the real life object to be converted into the digital world....
  25. Re: Taking the lines of a hull with the help of photogrammetry

    Thanks for the reference -- I may get a digital copy.
  26. Re: Taking the lines of a hull with the help of photogrammetry

    Good advice - I will experiment with a highly diluted slurry of dark clay.
  27. Re: Taking the lines of a hull with the help of photogrammetry

    Continuing my adventures in the mystery world of photogrammetry.

    Of all of my designs I have actually built, the Gorewood Cottage Cruiser 16 is my favorite.

    I haven't taken the lines yet as...
  28. Re: Taking the lines of a hull with the help of photogrammetry

    Thank you Edward for sharing the photos of this lovely craft.

    Unfortunately, as expected, the information content of this photo set is not sufficient to achieve a useful result with this...
  29. Re: Taking the lines of a hull with the help of photogrammetry

    If you think of a specific historic craft and you have a set of photos you are willing to share, I could simply give it a try and we will see if it will work.
  30. Re: Taking the lines of a hull with the help of photogrammetry

    From the general image capture tips of the Agisoft helpdesk portal: https://agisoft.freshdesk.com/support/solutions/articles/31000149337



    Overlap. In the case of aerial photography, the...
  31. Re: Taking the lines of a hull with the help of photogrammetry

    It's probably a blessing and a curse because you can waste a lot of time processing the information you collect with this technology. I think once you establish a proper workflow, it could be really...
  32. Re: Taking the lines of a hull with the help of photogrammetry

    The Agisoft software only produces the mesh which can be exported in various formats. From this mesh sections, buttocks and waterlines then were produced in Rhino.
  33. Taking the lines of a hull with the help of photogrammetry

    Only recently I realized that it is even possibile for an interested amateur designer to engage in something as advanced as photogrammetry. More information on the topic:...
  34. Re: FLO-MO One Sheet Baby Boat Build in Perth Australia

    PDFs for the panel layout and the aligned panels:

    https://drive.google.com/file/d/1vXTfEH8fBhszVgU-9RyRGLzv_xjQzU29/view?usp=sharing

    ...
  35. Re: FLO-MO One Sheet Baby Boat Build in Perth Australia

    Thank you Russell for pointing out that flaw. It is certainly something that could cause a problem.


    Once I get started it is hard to constrain myself. So I want to add another of these water...
  36. Re: FLO-MO One Sheet Baby Boat Build in Perth Australia

    Mini-Oselvar (scaled down Onarheim Faering; X x 0.42, YZ x 0.64)

    LAO: 244 cm
    Beam: 103.9 cm
    Depth: 32.2 cm
    Draft @90 kg: 15.3 cm
    LWL: 209 cm
    BWL: 80.1cm
    ...
  37. Thread: One sheet canoe

    by flo-mo
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    Re: One sheet canoe

    That looks slick :cool:
  38. Thread: One sheet canoe

    by flo-mo
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    Re: One sheet canoe

    Looks great Y>. I am eager to see the hull flipped and your solution for the transom.
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    Re: Plywood Canoe Concept - Birchbark Style

    Peter R has used the English lockdown to design and build his own Gorewood canoe.

    https://live.staticflickr.com/65535/50946565341_3f421b8f7c_b.jpg


    It is based on the very first Gorewood canoe...
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    Re: Plywood Canoe Concept - Birchbark Style

    Just a minor correction on the dimensions of the Fat Gorewood Canoe:

    LAO: 477 cm
    Beam: 95 cm
    Midship depth: 39 cm

    The measurements are taken from the small paper scale model and therefor not...
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    Re: Plywood Canoe Concept - Birchbark Style

    Hi Johan,

    Here is a picture that somewhat gives an idea of the rocker and the cross section amidships. As it is derived from the small scale model made of paper it is really just an approximation....
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    Re: Plywood Canoe Concept - Birchbark Style

    Another addition to the Gorewood design family: The Fat Gorwood Canoe


    Actually this is a refined version of one of the very early stages of the design development which at the time I didn't...
  43. Re: FLO-MO One Sheet Baby Boat Build in Perth Australia

    I wanted to ask the same question as I know that it can be tricky to get in and out. Good for you that you didn't go for an unintended swim.

    Congrats on your build.
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    Re: One sheet canoe - Flo-Mo's 12ft Flywood

    The SOT kayak looks very nice indeed.

    For the deck/flotation compartments you will need a second sheet of plywood. With a second sheet of plywood there is no reason to limit yourself to only one...
  45. Thread: One sheet canoe

    by flo-mo
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    Re: One sheet canoe

    Maybe you have already seen Octavia, an amazing rowboat design by Chris Waite. If not, I recommend to take a look at his work:
    ...
  46. Thread: One sheet canoe

    by flo-mo
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    Re: One sheet canoe

    I am glad my input was helpful.

    Of course using CAD software is helping a lot, but the most important part for developing my designs to the point where I am pleased with the result, is the usage...
  47. Thread: One sheet canoe

    by flo-mo
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    Re: One sheet canoe

    Very interesting -- keep on the great work!

    I once worked on a similar design. As the material for this one sheet design was supposed to be expanded PVC foam (Airex R 63.50, 270 x 125 cm) for an...
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    Re: Flywood Two Sheet Sailing Canoe

    The two Really Simple Sails balanced lug rigs:

    RSS Kombi Sailing Canoe Lug Sail

    RSS Viola Sailing Canoe Lug Sail
    ...
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    Re: Recommendations on a canoe design/plan

    Selway Fisher offers a lot of stitch-and-glue designs in almost all categories.

    From their canoe designs the 15' 7" Raven and the 15' 8" Fisher Prospector would both fulfill your requirements.
    ...
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    Re: Flywood Two Sheet Sailing Canoe

    Thank you all for your comments -- very much appreciated.


    I am considering to eventually provide offsets for the panels.


    I understand that the cramped arrangement of the panels is not for...
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