One sheet canoe

[Nathanael]

I really like all the designs Flo-mo has made out of one sheet. This is an attempt at a crossover of his one sheet Flywood and the hull of his 2 sheet sailing canoe. It still needs a lot of work as I am no Flo-mo.

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[Nathanael]

Only a few more small changes to be made and I think I'll be ready to transfer it to the plywood.

Made this paper model while I was at work. After making it I noticed a few changes can be made to the layout of the panels. Also one of the panels I made a little short. As you can seen in the last photo.

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[johngsandusky]

Very cool.

[flo-mo]

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 extra light canoe, I never showed it here on the forum. Also I started by the assumption that the material shown on this shop's website (https://www.farbenwolf.at/index.php?...=38&Itemid=137) was readily available, which turned out to be wrong. So I gave up to proceed this project.

But it still had a purpose as the design is the basis for two other designs, the Flywood Wherry and the Flywood sailing canoe.

For your inspiration here are some images of the abandoned project:

[Nathanael]

Very nice. It has already given me a few ideas.

One is build this one. But I want the back end to be wider so I need more hight on the back walls. I really like the addition to the nose. I think I should start using some kind of boat software. What one are you using?

[Nathanael]

The new layout of putting the same ends on the same. Side allows for less joining. I now realise that all I needed to do was rotate one line and cut the back on the Flywood one sheet design. But It was a fun experience. I should be able to start making this next weekend if the matirals I ordered ever get delivered.

[flo-mo]

Very nice. It has already given me a few ideas.

One is build this one. But I want the back end to be wider so I need more hight on the back walls. I really like the addition to the nose. I think I should start using some kind of boat software. What one are you using?

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 of scale models.

Regardless the software I use is Rhino for general purposes and ProSurf 3 for fairing and hydrostatic calculations.

[amish rob]

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 of scale models.

Regardless the software I use is Rhino for general purposes and ProSurf 3 for fairing and hydrostatic calculations.

Don’t be modest! The most important part is you think in a unique way. The tools help realize the vision, but you had to think of these wild ideas, first!

I will sometimes go to your site and just look at the sheet patterns; how the panels get cut out and assembled. I mean, I think your boats are lovely to look at, and I think I’d like to build and own them all; but the WAY they come about is amazing.

Same same as this here canoe. The goring, bending, flexing, and stretching required of just the brain!

I do enjoy these type deals. Thanks, all, for posting stuff like this.

[Nathanael]

So about 15 or so different designs and modules have been made since my last post and each one I noticed was becoming closer and closer the original design. This is the end result almost exactly the same as the original design the only changes are in blue.

[amish rob]

I think the first rule of design is you always come back to the original.

[Nathanael]

Some photos of the model being made

[Nathanael]

was able to use more of the sheet. nats final canoe 27012021.jpg

[Nathanael]

there is so many different ways to assemble these providing almost any shape possible. I guess this means you can choose the end you like best. this layout looks like it should work well.
nats canoe 01.jpgnats canoe_2236.jpg




below is just some of the other options. they all need to have the sharp edges rounded to work properly. The one at the bottom is the one I would like to try. not to sure if the plywood will bend like this? nats final canoe 28012021.jpg

[flo-mo]

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

http://uk-hbbr-forum.967333.n3.nabbl...td2638734.html

http://uk-hbbr-forum.967333.n3.nabbl...029668i20.html

http://uk-hbbr-forum.967333.n3.nabbl...td4031567.html


He did an incredible job to persuade the plywood to take the desired shape.






The transom shape is almost identical to the one you envisioned. If you use 3 mm plywood you might be able to achieve the bend, but I guess there would still be a high risk of failure.

[Nathanael]

I was working on a scale modle with a more practical shape but after seeing these photos I think I will have to give it a go. I really like the shape. If it fails I just make the other shape. I don't seem to be able to get any good 3mm plywood here in perth.

The first 2 photos are the modle with the curve.

And the others are the modle I just finished. It has an easier shape to achieve.

[Nathanael]

I'm really enjoying making these scale modles. This one is going to get covered in fiberglass. I used a thin layer of the cardboard as a pretend fiberglass tape on the joints.

[amish rob]

There’s an Aussie cat who built an outrigger canoe and several SUPs with 3mm ply from Bunnings, glassed with 4oz glass.

[Nathanael]

I got really excited the other day when I found 3mm at bunnings but it was 2440mm x 600mm I'll have to call around.

[Nathanael]

So this was more effort then I thought it would be. Still lots of fun

[Nathanael]

So just when I think I'm settled on a design this pops into my head
It's based on one of Flo-Mo's one sheet designs. I think I will have to build a scale modle of this and see where it takes me. Still needs lots of work to get the look right.

[Nathanael]

Made the firs scal model of this design today and a few changes are needed. But I think I will have to give this one a go.

[amish rob]

How do those panels look when cut out and assembled?

[Nathanael]

They looked like this before I added anything from another sheet. I got the dimensions wrong on some as you see in these pictures.

[Nathanael]

I tried to make this little boat look like the bottom one

I should probably try for something with easier curves to achieve like the middle 2

[Nathanael]

Every one I make I'm like this is the one. then I want to try something different. This is a nicer shape and easier to achieve with the plywood. Not very efficient use of the sheet

[Nathanael]

If nothing els my model building is improving

[johngsandusky]

Looks like fun.

[Nathanael]

This is what the corner of my desk at work looks like.

[Wesley]

You love to see it.

[Nathanael]

Still messing around with different options. I think I'm liking the ones on each end.

[Nathanael]

So I was starting to draw the design on the plywood when I decided I wanted it to be easy to draw and easyer to cut out. This was what I came up with. I should be able to use my circular saw on almost all of it only a few of the cuts are curved.

[amish rob]

You can cut curves with a circle saw, too. Just set the blade shallow.

[Nathanael]

Started to build some of these. Starting with this one first.

[flo-mo]

Looks great . I am eager to see the hull flipped and your solution for the transom.

[Nathanael]

Im still not sure about the transom as it's halfway between a kayak and canoe. I was thinking I would just see how this is and if it's no good I make something different on the next one lol. I have already started drawing the next one on the plywood.

I would like to make one with the stransom like octavia. But just started simple for my first design and used the 2 pieces from under the nose and let the boat chose the shape of the transom. If that makes any sense.

There is only very flat slow water near me so I was thinking I can get away with little protection on sides. If you have any suggestions for the transom I would love to hear/see them. I was trying to prioritise stability