/diy/ - Do It Yourself

Relevant.

https://youtu.be/ApTNqj-K_t4

>>2614253
Poverty Doug

Just glue together a inflatable boat, way easier and lighter. Just check for leaks around the seams and make sure it can hold enough air to support a adult or two. Your looking for nylon plastic or something similar that can seal well.

>>2614253
If this is the new diy boat thread, guess I ll ask it here.
Do you guys think it would be legal to try building and sending a boat drone across the ocean or will the coast guard intercept it befor leaving the mediterranean?
I tought, maybe even sending a gift in it and have some Florida anon pick it up.

>>2614253
As for OP, I guess that plywood and fiberglass won t be as cheap as, say building a wooden frame and stapling some waterproof canvas on it (or camping it's edges w other wood pieces.
Or this>>2614276

>>2614253
these threads always die after 30 replies. nobody actually makes boats by hand here. that's even more retarded than buying one.

The gold standard of cheap, amateur-level skill, and seaworthy is a 3 sheet plywood boat construction. They have some form of frame (ribbing), keel, chines, stem, and gunwhale.

The transom can be 2x4s (heavy as fuck), or just more plywood. If you're good at cutting bevels or fitting with an electric plane, it can be whatever scrap you find on craigslist, which is now facebook marketplace.

Glue & screw with lots of caulking will get a lake-worthy craft. Calm seas are doable in a port or harbor. Any level of chop though and you won't be able to motor through due to the height of the sides of the craft and the hard keel construction. If you were going to build a hereschoff 15, you wouldn't be here anyway.

You'll need to get very comfortable with 2-part epoxy with filler.

For rowboats/sailboats - https://forum.woodenboat.com/showthread.php?241013-3-Sheet-Ply-sailboat
http://flo-mo.weebly.com/three-sheet-boats.html
or just build a goddamn Optimist

For powerboats - https://www.clcboats.com/shop/boats/powerboats/cocktail-class-racer.html

^ these are _good prices_ on the motorboat, you will not be able to build it much cheaper yourself unless you have a fuckton of lumber sitting around

They're also fun as fuck to race.

As a final note, $400 is a little on the cheap side, I'd look more at $800 to $1000 for materials for a one-off. I mean, OSB technically floats but you have to sit on it? When we built at scale (over 100 wooden boats) we could get a rowboat down to around $500, with all the tools, wood, epoxy, screws, paint, and every consumable accounted for. Hardware stores you're paying a 40% markup for small sets of literally any consumable or screw, it's bullshit.

Wood fiber reinforced composite was a thing http://ibiblio.org/eldritch/nhb/paperc/c05.html

>>2614253
just buy a cheap trolling motor for power..
So what boat are you making? 2 sheet skiff? mouseboat?

>>2614253
>>2615607
Fuck yes, I have been thinking of doing exactly this all winter, I'm working on an island and I'm fucking sick of boatpooling, standing around at the launch for 45 minutes every morning while everyone talks about the last night's fucking hockey game or shows each other cat videos or similar dumb shit. I want my own ride

>>2615607
>The gold standard of cheap, amateur-level skill, and seaworthy is a 3 sheet plywood boat construction.
Says who? Most boats limited to 3 or fewer sheets of plywood are design exercises that trade seaworthiness for minimal cost/effort/ necessary build skill, and make for remarkably un-versatile hulls whose main purpose is to be able to say you built something that floats. There's a few that are decent playthings that wont kill you, but for every one of those theres a dozen wastes of materials.
>They have some form of frame (ribbing), keel, chines, stem, and gunwhale.
Many small minimalist boat designs that do succeed do so because they use the inherent strength of stressed plywood to eliminate the need for typical framing with ribs fitted to a keel. That's especially true with hull forms like dories and pirogues and canoes where the sides can be spread apart with the seats and the bottom attached to chine logs with no keel necessary, and sampans and johnboats that use a rockered (stressed) center panel with chines that run dead parallel to the centerline.

There's also techniques like tortured plywood and stitch and glue/tape construction that uses the strength developed in bent plywood to eliminate a lot of traditional internal framing

https://smalltridesign.com/Trimaran-Articles/Construction-Methods/Tortured-Plywood-Hulls.html

https://store.gartsideboats.com/products/15-ft-flashboat-racing-skiff-38

https://www.popularmechanics.com/home/a37200827/stitch-and-glue-boat-building/

http://www.tangoskiff.com/

https://christinedemerchant.com/free-stitch-and-glue-boat-plans.html

>>2616363
buy a inflatable tender...

http://hvartial.kapsi.fi/

How big would a boat or barge need to be to safely carry 1tonne of cargo across
1) canal
2) large lake
3) open sea

>>2616455
Anon, do you plan sailing the great loop w your mum?

>>2616516
I'm just taking your sister out on a date, thought she might like a boat trip.

I hate fiberglass garbage. For me, these boat vids are the best and most kino.

https://www.youtube.com/watch?v=rmkxdRpI7ak

https://www.youtube.com/watch?v=9xG9y1yhj-s

https://www.youtube.com/watch?v=STGwyif5K5M

>>2616570
>fiberglass garbage.
>first video shows "craftsman" nailing ribs together out of wood with knots all over it to fit an eyeballed plank curve rather than fitting planks to a frame made of clear lumber...
and no, they aren't clinched boat nails either.

>>2616639
anon that's called klinker construction, used for when you need a working boat, not a showpiece that took 10 years

>>2616658
The boat build being referenced is not clinker construction you slobbering ignoramus, and even if it were it would be a shit job by a fucking retard for using plain old sinker nails that aren't clinched.
You couldn't even build a clinker built hull on those ribs that are nailed together sans an glue or joinery, without destroying those ribs with pressure created by bending and fastening the planks.
That's a big part of why they are fitting them afterwards in the reverse of clinker and other traditional planking techniques...those ribs offer additional support but are themselves partially supported by the planking that is shaped without them.

A few years ago I came across on youtube a short old british tv series on boats, I think though my memory isn't perfect here that it was called "on the water with Nick Gibbs", I could be wrong because I can't seem to find a trace of it anymore. he had it hosted on his own youtube channel.

Anyway every evisode he moved onto a new old boat under renovation, one of which was an Oyster smack that had been rescued as a fra,e out of the mud, andother was a fast pilot gig from the bristol channel used to ferry pilots to incoming merchant ships, another episode was about a type of small boat motor.

It was an interesting series that I have been unable to track down since went quite deeply into the art of boat building and its history, hopefully one of you can identify it

>>2616738
Not sure about Gibbs but I think his name was Nick

>>2616738
Theodore Tugboat is the one you're thinking of

>>2616788
Tugs was a brilliant series but no I wasn't thinking of it.

>>2616793
>>2616788
*Hang on, who he hell is theodore tigboat?
google says he was some north american series?
This was Tugs.
https://www.youtube.com/watch?v=VvutyFaaBlY

My shitty sailing dinghy I made with 0 experience with both sailing and boat making.

With nothing to compare it to, it works bretty gud. The hull is 2 sheets of plywood, the sail is made from tarp, tape and rope and the mast and boom is pine from my parents backyard.

I still need to reinforce the bottom so I wont kick through the bottom when I get on, add oars and redo the boom attachment method

>>2614253

Awesome a DIY boat thread. Here's a little boat iv been working on. Its a foam core and fiberglass 7ft long inboard powered by a 6.5hp engine. I'll dumb a bunch of pics.

>>2617328

I still haven't gotten the rudder made yet but I plan on tackling that very soon.

Here it is with its first water test. Originally I wanted to just use the outboard motor but I wasn't very happy with the performance of the 2hp engine and there was too much weight in the back and the bow would come up too high. I'm hoping the weight of the engine in the front combined with the downward angle of the prop will help balance out the boat better.

>>2617332

https://i.4cdn.org/wsg/1684353738851321.webm

It will eventually be sealed with a rubber oil seal but since i'm constantly taking it apart to make adjustments to the drive unit i'll leave it out as not to damage it.

>>2617264
GOAT tier

>>2617264
Neat. Is it an Optimist? It's been a long time since I saw one in person but they have the same kinda shape iirc.

>>2614253
>I think this summer I will attemp making one for less than 400$ I hope
Don't do it. While boat building is an extremely rewarding hobby, never build boats unless you have tons of disposable income. If you only have $400 you're better off just buying a boat for $400.

>>2616453
>http://hvartial.kapsi.fi/
I built the 10 1/2 foot skiff once. So his plans are actually buildable, but it was a pretty annoying experience and the end result is kind of shit as far as boats go. Going to a real naval architect and buying plans, or even getting a CNC cut kit, really pays off in both the enjoyment of the process and quality of the resulting boat. The cost is negligible compared to the time and materials.

>>2617339
Hey that's pretty cool

>>2617381
>>2617477
Not an optimist per se, though shape and size is similar. The hull is actually based off a rowing dinghy schematic and I just kinda haphazardly slapped a daggerboard and mast onto it. I did make the sail and daggerboard the same size as the optimist though, since it was the easiest to get info on.

Tales of a shipwright on YouTube is a good channel for this kinda shit. I don’t want to make a boat but I enjoyed watching his videos.

>>2616570
All that work just so a bunch of worms can eat it all in 5 years.

>>2618004
Can it still be economically justifiable?

>>2618337

In some ways it can be. Sure the upfront cost might be more, Or you might end up having to rebuild it in 5 years but the knowledge you will learn from building your own boat and the sense of accomplishment of being on the water in a homebuilt boat will carry on.

>>2618004
It's too cold for teredo worms where those are built and used.

>>2618485

Can't get worms or even rot at all if you use foam and foam fiberglass (With foam safe resin of course)

>>2614253
If that is your budget, given the cost of wood these days, I would highly recommend looking at skin on frame boats instead of plywood or strip built.
More comfortable than inflatable because they still have a frame, but much lighter and more easily built than solid wood.

Latest update, Actually getting something done.

>>2620377
I love the bike handles. Don't stop.

>>2618373
>>2620377
This looks unstable, have you float tested it?

>>2617332
How is a white guy in the boat? Whoever made that is from a shit hole like liberia.

>>2620698

Yes, Its surprisingly stable in the roll axis since its a 33" beam and with the outboard motor it sat about 3.5" in the water. In the previous test I sat in a more conventional seat and now the new seat is going to have me sitting upright in a riding position, Raising my center of gravity but I think the riding position will allow me to self balance well enough to counteract any off balancing. I'm an experienced canoer so this should be a piece of cake.

>>2620561

Thank You! Handlebars were an afterthought after I realized just how uncomfortable sitting cross legged with my legs directly in front of the spinning U joint was going to be.

>>2620704

The lines are straight and the fiberglass can easily be sanded smooth and gel coated. You would know this if you actually built anything.

Any ferrocement chads itt? I was thinking of starting a test project using fiberglass mesh, grp fibers and nylon rods instead of standard steel wire, it won't rust inside out then and should last a lot longer, would be more crack resistant too

>>2620377
>>2617330

Small-cell XPS is technically the wrong choice for this application. Because the cells are smaller, it has low adhesion to the fiberglass (the plies will peel right off) and there might also be some additives (Si?) which inhibit the epoxy bond.
It won't be a problem for your application, if it works then it works. just thought it was worth sharing. From what I understand it's most apparent with repeated flexing.
What you want is the large-cell XPS sold as flotation billets. It's rougher and doesn't look as nice but that's the type that's been popular since the 80s in murrika for homebuilt aircraft.
(I would've used the small-cell stuff in my project but my mum wouldn't let me.)

>>2621997

Good advice, I have noticed that the fiberglass does peel quite easily. I sand the outside of the foam with a very course grit sandpaper (60 grit) to help rough up the surface for better bonding and that helps a lot though, also ensuring that there are no sharp edges for water to grab hold and peel the glass helps to go a very long ways.

>>2616422
Lol. Visitor to the island just destroyed one of these, this isn't a nice sandy lake bottom, it's jagged granite boulders. Pure Canadian Shield here

>>2622236
So how well does wood hold up?

been working on the rudder system over the weekend. I have a large plastic cutting board I'll be cutting into shape for the actual rudder.

>>2617332
Haha, that looks comfy as fuck. Good job.
I used to live on the ocean and we had lots of fun in small boats.

>>2623997

Thanks! I remember watching link related back when it came out and ever since I was obsessed with the idea of a small boat I could cruise around in but over time it evolved into what it is now.

fuck, Forgot the link.

https://www.youtube.com/watch?v=CIcGLjjOOb0

>>2616264
this is really nice work anon. these other junk post are amateurish

>want to build boat
>local lake is horribly polluted
fugg

>>2624200
how hard and safe is it to make and use something like that?

>>2625655

Looks really unstable unless he has ballast in the bottom of the hull. If he attached two ICB totes together I bet it would be a lot more stable though.

>>2626201
I assume it's ballasted given how low in the water it is

>>2624200
Is this a real photo or just a mock up?

>>2624200
I need the hilarious video when that thing tips

>>2624349
Fix that one

>>2624200
https://www.youtube.com/watch?v=_bqQC054zpw

I was building a catamaran out of foam and fiberglass but the resin melted the foam.

>>2628570
use epoxy instead..
or glue and fabric poormans fiberglass

>>2629151
Or foam that's compatible with poly-/vinylester resin -

>All of the Sandwich Core materials in this category are compatible with epoxy, vinyl ester, and polyester resins, and can be used for most lay-up techniques, including vacuum bagging and infusion.

https://www.fibreglast.com/category/Vacuum_Bagging_Sandwich_Core

>>2629156
The goal was to spend less money, not more, monica. That's why the foam was painted to provide a layer of protection from the resin. The resin generates more heat than anticipated however,
I recommend just using thin plywood instead.

>>2629354
>The goal was to spend less money, not more, monica. That's why the foam was painted to provide a layer of protection from the resin. The resin generates more heat than anticipated however,

So you wasted the foam, the resin/glass *and* the paint, but are still the smart guy who gets snarky over details that were never mentioned and whose advice people should still listen to?

Lol, retard.

>>2628570

Small foam boat anon here, I used Raka brand resin. A lot of the off the shelf fiberglass resins will melt foam.

>>2628420
That's an image I scraped off Google. The actual lake is so polluted the only wrecked boat I could find (rotted beyond repair) has been consumed by weeds and algae

Oh nice, I'm doing a patch on the fiberglass on my cedar canoe

>>2629760
You sound vaccinated, and are unable to differentiate cause and effect.

>>2629961
Apparently you used epoxy. Most fiberglass mats require polyester to break down the matting agent. Which apparently is the same effect that melts foam.

>>2630503
What kind of horse shit is this? Epoxy is the preferred filler for fiberglass on boats, it just fills in the cloth it is not breaking it down. That would defeat the purpose of the cloth, which gives it it's strength. Polyester fiberglass is shit and shouldn't be put on a boat.

>>2630589
My brother in Christ:
>Fiberglass Mat is one of the most popular forms of reinforcement for non-structural applications. It's inexpensive, easy to use, and can quickly build thickness into parts, molds, or even a repair. It features randomly oriented strands throughout that effectively hide print-through of heavier fabrics and create an equal stiffness in all directions for molds and parts.

Note: All Fiberglass Mat is made to be used with resin to create hard, composite parts. However, it is NOT compatible with epoxy resin. Mat has a light binder that holds it together. During lay-up, it requires styrene to break down that binder and allow for complete resin saturation. Epoxy does not contain styrene and therefore cannot be effectively used with the mat. Use polyester or vinyl ester resin with these applications.
Source: https://www.fibreglast.com/category/Fiberglass_Mat

>>2630623
What kind of retard is using fiberglass mat on a boat? Get some good cloth and fill it with epoxy and it will bind better and outlast any polyester garbage. There's a reason all the canoe kits you see on the market today come with epoxy resin.

>>2630623
Actual giga retard. It says IN YOUR OWN FUCKING POST that fiberglass *MATS* are not to be used as a structural material, i.e. the fucking boat hull. We're talking about boat hulls, which you use woven fiberglass fabric to make, which does NOT have a binder. You double nigger.

>>2630958
It doesn't say "not to be used" imbecile fucktard, and the fact that you think a layup of a structure tubal part can ONLY be 100% woven material OR 100% omnidirectional strand just shows how little you know about composite construction.

Your rant is literally as stupid as claiming that since a sheet of wood veneer isn't a self supporting structural material it is "not to be used" in or on structural components.

EVERY boatbuilder worth a shit that does layups in molds uses mat or chopper gun applied strand as part of that process because of the print-through issue that is also mentioned in that anon's link but you conveniently ignore.
tl;dr: STFU mouthbreather who thinks the outer hull shell is the entire structure of a fiberglass hull.

What happened to seeker? Is it still in the river?

>>2630977
Real poor people hours
We're talking about wooden boats, not plastic trash

How can I convert this open cockpit inflatable kayak into a closed cockpit kayak? I'd like to something that keeps the water out and keeps me warm. I'm thinking either buying the same material it's made from and cutting out a piece and attaching it to the sides by D-rings (which I'll have to glue on) or building a deck from solid material, like Owens Corning Foamular reinforced by stiff plastic strips underneath and fastening the roof of the deck down to D-rings along the inside. Ideally I'd be able to have it zip on and off, but I don't know. I'm going to experiment with polyethylene sheets and clamps just to see what works without making permanent changes to the boat initially.

>>2630997
>We're talking about wooden boats, not plastic trash

So the guy talking g about his foam melting was talking about wooden boats?

And "DIY boat thread" means exusively wooden boats...?

Cope and seethe, retard, you were spectacularly wrong and just keep getting wrong-er.

>>2631052
Polyethylene foam is definitely Italy going to be superior as far as light weight and rigidity for the least amount of cost and hassle to implement...the problem with a fabric deck is that lashing it will never really tighten up that well, but PE foam will resist that and tend to bow upwards, which is what you want in a deck anyway both for strength against defelction and to shed water.

Ideally you could do a hybrid; a tensioned fabric outer cover that overlaps the gunwale to help seal and a more rigid PE foam sheet structure underneath it to resist that tension trying to draw the gunwales together.

>>2631056
*Ideal* , not Italy

>>2631056
This is a totally dropstitch body, both the floor and the sides. It's pretty stiff. I also got the 350fx model and I intend to do the same or similar with it, though I am also trying to devise a dog cabin in the back for a little dog to stay up off the floor and be protected from rain. It will be entirely enclosed with rubber woven/mesh fabric and clear plastic windows so it restrains her and is still breathable. I intend to make the frame from PVC pipes. I have a bunch of fabrics to work with and I will tie some down on the front so the dog can go underneath in front of me at times and be restrained by a mesh ceiling. I would have gotten one of the Advanced Elements, Kokopelli, or Aquaglide convertible kayaks, but they all had various problems like lower durability, difficulty in drying, ill fitting zippers, and lack of actual waterproofness, so I bought what I felt was best. I'm trying to convince Sea Eagle to make a fully enclosed drop stitch model, but I have to make do in the meantime. I need to have some kind of cover system worked out for winter time, possibly with wool on the inside because I have no intention of stopping for winter up here in Pennsylvania.

>>2631054
>Stupid poor person still seething
Maybe if you weren't so stupid you wouldn't be so poor and you could afford to make a real boat and not play with melting plastic toys

>>2618373
Carry on to what?

>>2631216
So rich people build quickie three sheet hard chine DIY plywood skiffs and poor people use composites that can be molded into any shape and understand their mechanical properties because they can't afford the cheapest/easiest Popular Mechanics- tier construction method imaginable?

LMAO, isn't there a municipal pool or some lawnmowing jobs to keep you occupied until school starts back up?

>>2631279
>Plywood
Sounds like more poor people cope, stay mad shit for brains

>>2631316

>shit for brains
> thinks boat in >>2614253 isn't plywood

>>2614253
>I think this summer I will attemp making one for less than 400$ I hope
If you think it's going to cost you $400, it'll probably cost you $800.

>>2631574
Not OP but I'm built different. It's gonna cost me $200

Funny how three different people are arguing with each other thinking they're me when I'm the only retard who melted the foam. It's not too bad though, just a little wavy.

>>2617756
I made one too. What would you say are it’s shortcomings ?

>>2621299
Do it! sounds like fiberglass but protected from uv by the cement. Great test case for the material

>>2631318
>Shit for brains thinks thats my boat

>>2630977
you are so fucking vile
are you a jew
the sheer malicious ignorance and strawmanning is almost incomprehensible to me; you're the very rare sort of person that rather than being just self-absorbed is actually truly evil
satan worshipping fuck

>>2630503

Oh ummm.... Uhoh, Most of my boat is made out of fiberglass mat. Seems to be really strong and stiff though.

>>2632579
No it's not

>>2630977
>>2630958
never seen it (mat) used for anything on the actual weight-limited part. it's used for tooling.
>print through
use a light woven top layer and then sand it down
or filler (glass spheres) and sand it down
>but muh professhional professhional
I don't have any experience with boats, it seems logical that they would use idiotic building methods if the weight doesn't matter

>>2634329
>print through
>use a light woven top layer and then sand it down
>or filler (glass spheres) and sand it down

>I don't have any experience with boats

No shit, or fiberglass fabrication in general if you think that's a solution for print-through in a layup done in a mold.

"Fiberglass mats make up most of a fiberglass body or kit. The strands of fiberglass in a mat are disorganized and can intermesh easily with the fibers of other mats, so they bond together. During construction, fiberglass mats are layered until the desired strength or thickness is achieved. Fiberglass mat has a higher density than fiberglass cloth."

Mat conforms to tight corners better than cloth, helps prevent voids between layers of cloth, can be torn to create soft edges to build up gradual thickness transitions, and while it's not as strong as cloth *by weight* it's equally strong in all directions; cloth isn't. Chopped strand is strong enough to the only reinforcement in things like bathtubs and shower stalls and equipment enclosures and tanks and car parts like hoods and all sorts of other items.

Nobody is saying that using it exclusively in a boat hull is wise (even though its done on inexpensive small production boats), but the clown wailing about how it has no business anywhere in a boat build is just hyper retarded.

Captcha: DK ASS

>>2634470
>fiberglass fabrication
>bathtubs
>shower stalls
>equipment enclosures
>tanks
>hyper retarded
probably
>it's equally strong in all directions; cloth isn't
lard is also equally strong in all directions
nerd

Anybody install a Sybian machine on their kayak? I'd love to paddle around all day and have my prostate pounded and ass stretched

>>2634638
t. made his own bathtub out of lard

did someone call?

Cool thread

>>2615528
if its a drone who cares you wont be on it to arrest

>>2635884
>lifejackets
Over Doug's dead body

I miss sv seeker threads. They were always good for a laugh.

>>2636855
I was going to ask about that, when did we stop getting seeker threads?

>>2637065
If you want a gay assed faggot seeker thread you can make your own. Is this your first day here?

>>2637068
Wow. Doug's gotten salty since I've been away.

Got this free off fb marketplace its fibreglass mould for making real boats i think. Added some wood was fun to trundle about for a summer

>>2637179
yes i misspelled boat in my other file name

>>2637180
I meant both other ones

>>2637065
When Doug stopped doing anything interesting enough for the discussion to not be drowned out by that one faggot autist screeching all day how he doesn't want Seeker threads on /diy/

Alright, just got some roof racks for my car, which is like step one to building a boat, since there's no sense in doing so if I can't transport it. :D

Anyway, any of you done a tortured plywood build? I'm very strongly considering a tortured plywood canoe (gorewood 16 design by flo-mo, pic related).
My main issue though is there is absolutely no way I can build one inside. No room in my house, and my shed is only like 8x10, so this is going to be an outside build, whatever I build. Best case I can hang a tarp or do a PVC tunnel. So I'm also hoping whatever I build will be quick since I get tons of rain (though sometimes I can get a week or two straight of sun, no way to predict though). Also I'm a bit cautious about any fiberglass work, being outdoors in the elements. On the flip side, the excessively high humidity and high heat should make bending the plywood easy at least, right?

My other main option is skin on frame, but traditional looks slow and tedious (though prettier and more interesting to build), the fuselage kind is ugly and seems like a less enjoyable build. Also no advantage weight, though I guess it would be cheaper not needing epoxy.

>>2637725
BTW if anyone else is interested the "plans" are at http://www.flo-mo.weebly.com/uploads/6/0/6/0/6060415/gorewood_16_canoe_-_offsets.pdf
And there are several build threads and discussions on the Wooden Boat forum and Song of the Paddle.

Pic related is another boat I've long considered building, a skin on frame sailing canoe. It'd be shit for actually paddling though.

>>2621299
Somewhat interested as well. The local university's engineering department has an annual concrete canoe competition, so obviously it can be done lightweight.
Also, personally, just interested in concrete in general, for myriad purposes outside of boat building.

>>2637725
Why not extend or replace your shed or buy a box trailer or box truck bed? The first thing to attack is shop space after which everything else gets easier.

>>2637725
Just do cedar strip

>>2637725
I've done a fair amount of tortured plywood and other developed forms from sheet goods, just not a hull...more furniture and sculpture and smaller sub structures.

It's a cool process, the main caveat and key to success is that anything less than the best quality plywood risks catastrophic failure because of inconsistencies in the bending properties and strength where there may be voids or other anomalies. For that reason it's not necessarily cheap to do it right.

Dont know why you're saying skin on frame doesn't offer any weight advantages, that's one of its main benefits. You sound like you're pretty aware ofcwhats out there as far as designs and plans, but if you aren't familiar with these you might want to check them out, their 18' canoe weighs 35 lbs., about what CF canoes the same size weigh-

http://gaboats.com/boats/

http://gaboats.com/boats/snowshoetraveler18.html

>>2615528
Only regulations will be around the coast, and some maritime shipping stuff that'll be all about not interfering with other boats.

There are a few companies doing this already. Totally doable.

>>2631083
the sides arent drop stitch fuckn retard... just the floor is to create rigidity..

>>2637937
Hey dipshit, learn to read and follow a thread (pic related).

>Introducing The World's First All Drop Stitch Patented RazorLite™ inflatable kayak!
>...fully constructed Drop Stitch technology hull
https://www.seaeagle.com/RazorLite/393rl

Emphasis added because of your personality disorder and general lunkheadedness-

>"I ***also*** got the 350fx model and I intend to do the same or similar with it..."

Fucking moron.

boat building by OG Russian genius
https://www.youtube.com/watch?v=hmDVww-MNEg
his earlier vids also have some various kayaks/outriggers he's made out of sticks and pallet wrap

>>2637769
Money and space, even a used large shed is going to run like $5k plus transportation and I really don't have room for it if, since I've got a jungle growing in my yard (intentionally).
>>2637878
lol
lmao
>>2637932
Yeah was planning on finding the best marine plywood I can if I go that route, and getting uniform veneer thicknesses since that seems to play a huge role.
For SOF not having a weight advantage I mean the 'fuselage frame' ones where you cut out thick plywood frames then add stringers, like Dave Gentry's boats or the old Yostwerks kayaks. They seem to come out about the same weight as a tortured ply boat. The fancier ones like Cape Falcon Kayak's designs, or the GA boats are lighter but I've heard the GA boats durability is questionable. They do look damn nice though.

>>2638079
I guess I should point out pic NOT related, that's one of Gentry's traditionally built SOF canoes.

On an unrelated note, building a realistic version of pic related might be neat for lazily wandering about in the delta. I guess it would be some sort of Oriental punt type thing, maybe add an electric motor and of course a small roof to relax in the shade. Or I guess get a cheap john boat and an old bimini top for the redneck western version lol. If I were more mechanically inclined put a jet ski engine in it for the lulz. As bad an idea as they are jet-john boats always look fun as fuck.

>>2638039
Nice. It's certainly crossed my mind to do that sort of construction and build a little pirogue probably out of cypress.

Or for open bay conditions, a traditional sharpie... "Simple" to build but I've got no where near the space lol.

>>2631052
Easiest probably like you said, glue on d-rings and lace it to taht with bungie cords, use heavy PVC like the boat. Or you could just straight glue it on. Or get the long ass zippers you'd need, attach one side to a strip of the PVC and glue that on (on both sides) and sew the other part of the zippers to your cover. Seems like a lot more work and you'll need very extra long zippers, plus you'll want the large heavy duty kind.

>>2638090
Shit or maybe do this, just glue velcor along the boat, then velcro your cover on.

>>2638079
Oh, I guess you're not smart enough or too poor.

>>2638079
Various types of SOF definitely have a sweet spot where strength and weight parameters are just right for any particular size, and quickly go out of whack when you get out of that envelope...unless you really adapt the design and scanning for best results.
The fuselage style can work well if you don't overbuild the framing but over maybe 12' that gets really hard to do.

I used to have an old 60s-70's era ten footer that just had two 1/2" ply ring frames that defined the cockpit ends and a stem and stern post , with everything else being stringers...the keel and cockpit coaming ones were beefed up but otherwise the only wood was a floor/seat. It was covered with what amounted to bed sheet material (with flower print) that was saturated with polyester resin. Super light, super fast, eventually needed glassing when the original resin got brittle but it was still light.

Not for everyone though, fairly fragile and would not have scaled up well...but SOF *can* go way bigger than most people might imagine if you do the engineering (pic related)-
https://westcoastpaddler.com/community/threads/george-dyson-re-launch-of-the-mount-fairweather-baidarka.6449/

As for the ply, if you haven't already seen it this has some really good history and pointers...
https://smalltridesign.com/Trimaran-Articles/Construction-Methods/Tortured-Plywood-Hulls.html

Note what he says about canoes and that the canoe plan you posted with the darts is sort of a hybrid of TP and stitch and glue like the Cherub dinghy he mentions ...that's OK and probably why it works, but it's worth noting that tortured ply was originally developed for cat hulls that were more of a full monocoque and benefitted from not needing framing to reinforce an open hull form and hold that stressed skin in shape.

>>2638250
*scantlings*, not scanning

>>2638083
what type of boat is this?

>>2639143
looks like a baidarka with multiple cockpits?

>>2639143
That drawing is very stylized but is based on a sampan, which as that anon says is sort of an Asian version of a punt (or johnboat)-
>Chinese (Guangdong) sàambáan, from sàam three + báan board, plank

although they can also have round bilges and pointed bows too.

Very simple to build if you want them to be, easily scaled up or down across a range of sizes, lots of usable space for their dimensions and very well suited for river, lake and coastal use, just not great in waves.

Best "bang" for your diy buck?
https://www.atlasobscura.com/places/tha-bak-bomb-boats

Here's one ready to convert for $950

F-4 Phantom Drop Tank Centerline

https://www.ebay.com/itm/115637280237?hash=item1aec84dded:g:ykkAAOSwxGNjlm8C&amdata=enc%3AAQAIAAAAwADQNVJ7nigbvmDyUTVcPXXOr%2F4HQAQPhp3gC638R%2F3HNb4M6vq2Z%2Fd%2B8ppOi%2FAhkZ0ELO187QHd8Nstvyq5dUhnSfjG7qY6KJQuDGBT3SnGUlnnSx%2FW6KmoC8iFiVMQ9Xag5qnVx2ekAWJlA5qCS4Egr%2FzOfdlm0p%2FhooqxR%2BojJhoA6SswMX%2BS53Le8mKYr0IcDAZTFHz7dvFbNVCtSevnypw3w5hkzT%2BttbmMweyqKH5ctBYVEq0x1nV7Q0cHEg%3D%3D%7Ctkp%3ABk9SR46FiNWfYg

>>2639251
WW2 version

https://proafile.com/multihull-boats/article/wwii-drop-tank-multihulls

>>2635884
Whoever photshopped this was raised by a woman.

>>2639224
Thanks!
I have 2 reservoirs near my farm that allow unpowered/wind/electric boating so this could be a fun project

>>2638083
This is cool AF and totally doable. New life goal unlocked.

>>2639654
>>2639800

If I was going to do one of these I would follow the Indian style of deck house that uses tensioned hoops that run full hull width or may even overhang a bit; picrel is a very complex multiple arch version but it could be as simple as a Conestoga wagon.

The other option would be to use a hoop tent and size/fit the boat for the space and tie-down to secure it. The light weight would be a big advantage, especially with smaller hulls. I've seen people do this with beach cats and small trimarans and it's pretty slick.

>>2639808

>>2639812
People do this for those tiny boat endurance races like the Everglades Challenge sometimes. Buy one of those really tiny tents for kids with the same width as the beam of your boat, cut the bottom out and make some way to attach it to the gunwales and you get a sitting height collapsable waterproof pseudo cabin for really cheap.

>>2639820
Exactly. Another option would be using surplus billboard vinyl for the membrane over hoops, or for something more permanent recycle a bunch of Coloplast signs for the skin to cover a light framework.

>>2628570
i think you might be able to paint the foam with latex paint which when dry acts as a barrier from the polyester resin eating the foam. you could carry on that project.

Thoughts on a DIY submarine?
How difficult would a project like this be to pull off and would it be possible to do on a budget? I have some deep water spots I'd love to try with a DIY diving bell or submersible device.

>>2640056
why don't you stick with diving and snorkeling

>>2640056
I know this is almost certainly a topical gag post, but in all seriousness the anon from >>2640082 is on the right path; unlike many other activities where more equipment can make them far easier and more pleasurable and less stressful, when it comes to underwater activity the more involved the gear becomes everything gets more stressful and there's more opportunities for major problems, both with gear malfunctioning and with getting into dangerous situations.

If you absolutely need to step up from simpler gear to reach some depth or do a job then you do what you need to do, but if you don't theres usually little benefit to using more than you actually need, along with more to worry about. That applies whether you go from snorkeling to scuba, or scuba to surface supplied rigs, from those to diving bells, from bells to subs, etc.

>>2640056
Small, shallow diving bells are neat and pretty safe/easy
Just make or find a clear plastic dome big enough to fit your shoulders and head in, anchor it to the bottom of a lake really well, then pump air under it and you can swim down and poke your head up and take a breath and look around, its a cool feeling even if it's only 10ft down, and if something goes wrong you just swim back up.
Anything more serious than that maybe don't rely on advice from 4chan about.

>>2614253
I want to build a dory like in the op. would these dimensions work?

>>2640295
fuck

>>2640203
>you just swim back up

If you "just" swim back up after breathing compressed air underwater you can be severely injured or die from pulmonary barotrauma.

And regardless of the air's original source or how it got there, if it's at depth, it's compressed, even at ten feet.

>>2639808
Same sort of idea is also apparently common in merry old England for row cruising the Thames.

>>2639827
Still regret that during the last hurricane I was too lazy to grab some vinyl, there was a huge fairly low billboard with the whole thing just hanging off but I was feeling lazy lol.

As much as I want to build a boat, laziness is making me consider one of the abundant canoes that can be had cheaply... It's jsut they're aluminum or fiberglass and like 7-80lbs, so I'm worried about future laziness of lifting that heavy shit on and off my car. But it would certainly be quicker to just go buy one, and then build a sailing rig for it...

>>2640301
Fixed

>>2640310
>air's compressed
Just breathe out as you swim up?
I mean my childhood pool went down to 12 feet (before all those retarded safety limits were put in place) and I had no problems breathing with a spare garden hose and a pool noodle.

is welding school a good place to learn fundamentals of boatbuilding?

>>2640458
Why would you think that

>>2640471
i live in a shipbuilding town, and all the companies are offering shipbuilding apprenticeships to people with welding certs

>>2640414
>12 feet
>breathing with a spare garden hose

Sorry, you have to be at least nine to post here.

>>2640474
And what part of that makes you think that a school to teach you how to weld would teach you how to build boats? Walk us through the logic that helped you arrive at such an asinine conclusion.

>>2640549
why are you being so mean?

>>2640581
Because your thinking doesn't make any sense. Just because boat builders are looking for people with welding skills for fabrication doesn't mean they are going to expect you to know how to build a boat yourself already and it definitely doesn't mean a school specific to welding is going to teach an entire separate skill set as well. Your question is stupid and you should be able to use critical thinking and figure this out yourself.

>>2640586
okay, let me apply some critical thinking
>I asked if welding/trade school would help to get into boatbuilding
>>stress shipbuilding town, shipbuilding culture
yes, it is a school where you can go from fabrication to shipbuilding/design.
I'm the one asking questions, and you're the jackass just being unnecessarily aggro.

>>2640598
Boatbuilding and shipbuilding are nowhere near as synonymous as your line of questioning assumes, both in the skills involved and how specialized and compartmentalized they are within the process of shipbuilding.

A welder in a shipyard may know virtually nothing about any other part of the process, including different types of welding than what he does. He can be qualified and know almost nothing about boats or ships or their design principles.

A boatbuilder needs to have a fairly well rounded grasp of a lot of maritime principles to have a chance at building something of any quality, and still may never weld a single thing in his entire career, although he'd probably get some exposure to the basics if he went to school to become a boatbuilder.

But that would be so he could tell a welder what to do if/ when he needed one, and he'd never assume that even an experienced welder from a shipyard would automatically know what to do without instructions.

It's like asking if learning how to operate CNC equipment is a good way to learn how to design and build cars, because car factories use people with that skill.

>>2640598
Wrong, you asked if welding school would teach you boat building fundamentals. Right here
>>2640458
Welding school will not teach you anything about building boats or ships other than the welding techniques used when building them. This guy did a pretty good job of explaining it
>>2640628
Welding ships doesn't mean you know how to build ships. Knowing how to build ships doesn't mean you can weld. If you're an ironworker building a skyscraper you don't necessarily have any idea how to design one but when the architects tell you what they need done you can make it happen.

>>2640474
Still not going to learn about anything boat building specific. There's a big aluminum shipbuilder in my town and aircraft manufacturers so there are often aluminum welding classes, but still it's just the welding part. Also I signed up for the free classes when I was younger but did not get in because I am not a negro.
>tfw wish I knew how to weld aluminum

>>2640458
No, working for a small boat builder is. It's a waste of time. Find a better hobby. Someone should be blunt about it. It's not a good way to get a boat either.

>>2640631
>Welding ships doesn't mean you know how to build ships. Knowing how to build ships doesn't mean you can weld. If you're an ironworker building a skyscraper you don't necessarily have any idea how to design one but when the architects tell you what they need done you can make it happen.

Thanks for reiterating everything I just posted back @ me, I guess

>>2640960
Jesus is everyone here literally fucking retarded?

>>2614253
Is it possible to carve a boat out of solid wood?
Like you have a huge fallen tree in your backyard, and then you cut the branches etc and then start carving it. How long would it take?

>>2641085
More than 7 days
Look up dugout canoes

>>2641104
makes me wonder how fast you could do it with modern equipment
could you do it in a single day if you used a stump grinder to hog out most of the material?
is there some kind of crazy forestry equipment that could do it in an hour or two?

>>2641250
There's tools that can remove lots of material quickly but that speed works against the need to minimize the stresses induced by drying in a log.
I make log drums by hollowing out solid logs and even with a full array of chainsaws, drills and forstner bits, routers, etc. its tedious work and all but *just* the right logs ( species/quality) are almost guaranteed to have some kind of problem turn up whether its internal cracks ( checking), rot and voids from insects, etc. I can live with some of that but it becomes far more critical when making a functional watertight vessel.
And that's not even considering plain old goofups, which are very easy to do and can ruin all your previous work in a flash. Theres also the fact that hogging out the basic shape isn't even half the work for a useful boat.

Even if you succeed you end up with a very heavy boat with minimal useful volume and highly unstable characteristics. There's a reason you never see them outside of museums and even in the olden days people ditched dugouts as fast as they could unless they literally had no other option.

>>2635884
Take them dear Poseiden.

>

>>2628570
Don't use polyester resin has to epoxy or it melts

>>2641468
The beginning

>>2621299
these disgusting things are the brutalist architecture of the seas
wood chads rise up

Built a CLC skiff kit a few years ago, never got to use it to teach the wife small boat sailing since we ended up buying a 40' sailboat and taking off on that for a year. But we're back now and just bought a house across from a reservoir, so finally this puppy will get some miles under the daggerboard.

>>2641509
Really looking forward to launching but having done some repairs on the "big" boat with MAS epoxies I'm a little nervous for the little boat which was built entirely with MAS. I made a repair to my main mast underway in South Carolina and it broke loose on the trip from there to Florida in 20' following seas. Unpleasant. Re-did the repair with some oak blocking to shore up the mast step and used west system, and that shit has been rock solid all through the bahamas and the trip back up to NYC. Hoping the skiff doesn't disintegrate as soon as I step into it.

>>2641512
Video of the first few stages here
https://www.youtube.com/watch?v=zCxnqedsWqU

>>2640301
No. Beam of the hull should be 4ft or more. Especially on a 12ft craft.

>>2642051
How terrible would a boat be that is wider than it is long but built in a traditional shape with a pointed bow

>>2641514
>>2641512
>>2641509
nice

>>2641468
Nice

>>2641509
>>2641512
>>2641514
Nice

Comfy thread (except for that one troll)

>>2642716
Uwot. Put the axis of propulsion along the longest axis of the boat along with steering foils if you value efficiency at all. Or build your frankenstein craft I am here for it my dood.

>>2642716
Sounds kind of like a retarded coracle
Would be funny if nothing else

I have polyester resin that wont set up. does the hardener go bad first? is there any why to tell if the resin still good?

>>2617339
404'd just post itt

how about this

Got the plans for a 30ft Bruce Roberts sloop. Looking forward to posting my build here and seeing the apocalyptic seething from the mouthbreathers on /diy/.

>>2643662
what's your expected total cost?

>>2643690
~70-100k ish, have a bunch of parts and an almost new engine acquired on the cheap. You can do pretty well on new builds now if you have a cheap build location and are doing everything yourself along with things like dyneema rigging, second hand sails from richfags which are still in great shape, openCPN to avoid Raytheon jews, diy watermaker, etc...

>>2643698
well if you have a real boat engine and plans it shouldn't turn into sv seeker part two

>>2643785
Sure. But thoughtful, careful builds aren't going to attract very many views on YouTube.

>>2614253
my dad's friend was making about in his garage and after about 25 years he never finished it. It was just an excuse to get away from the wife and hide in the garage.

>>2643806
people just cant help but watch a good train wreck

>>2628570
Check out Tech Ingredients on youtube. Can glean some catamaran construction advice from them I gather.

They did a solar powered catamaran but I think you could easily adapt their construction techniques to whatever you are aiming to do. Their actual end result looked very nicely constructed and would likely make a pretty quick boat if they had given it a larger power source.

>>2643598
Recommend 10' min on the waterline, 12' is comfy. Otherwise looks good.

Just get you one of these OP

>>2622803
Stab your chopping board with a knife, it holds up that well, idiot.

>>2644216
Bro, deny deny deny!

>looking at plywood boat plans from the 60s
>18 cabin cruiser
>approximate cost of hull: $225
>plans only cost a $1
take me back bros

does it look to much like a slice of pizza?

>>2644494
Wages were different then too so unless you're using an inflation calculator your math is deceptive.

https://www.dollartimes.com/inflation/items/1965-united-states-minimum-wage

On a buck and a quarter an hour that hull isn't quite so cheap. Today you can get free boats aplenty from fools who made the mistake of liking boats. The slick way is work at a marina part time to learn the tricks of the trade just like becoming an auto mechanic.

When it comes to vehicles you're either in the business or a retail helpless person. Either is fine but choose wisely.

>>2640295
Dorys do have some useful qualities for certain tasks and are pretty easy to build but be aware that as all around recreational boats they leave a lot to be desired and their history and capabilities have been heavily romanticized.
There's modernized versions that are better than others but one odd thing about the form is that unlike many other small watercraft, making them lighter can make them even squirrelier and prone to capsize and swamping than their original heavy construction.
They're very pretty to look at, work OK and develop some stability when heavily loaded with people and cargo and are great space savers if you need to nest a bunch of them together on your whaling vessel, but otherwise they kind of suck.

>>2644626
OK now use shadowstats, not the good goyim website. Also no one back in the day was on minimum fucking wage.

>>2644626
Yeah yeah inflation but even so cost of living was extremely lower than today, so even if building that boat cost a decent amount of money, you probably had plenty since you likely already outright owned a house (or two) and a couple of cars and had a fat pension and tons of disposable income.

And even so that cost was considerably lower relative to one's salary than the equivalent today.

>>2644626
Also it's always fun to compare to gold. In 1965 minimum wage was $1.25, but gold was $35/ounce. Currently the federal minimum wage is $7.25, but gold is just under $2,000/ounce.
So at current prices it would require ~275 hours of labor for one ounce of gold. In 1965 it would require a mere 28.
So at $225 for the hull divided by $35/ounce of gold, that hull cost 6.4 ounces of gold which would require 180 hours of minimum wage labor. Today that hull if it stayed a constant 6.4 ounces of gold would cost $12,800 and require 1765 hours of minimum wage labor. Since $12k seems about right for the cost of the hull it would seem that prices for the build have stayed relatively constant, but real wages have dropped by an order of magnitude.

tl;dr People back then were far more wealthy than we are today.

Is it worth it to pick up an old fiberglass 17' canoe for $200? Anything to look out for that I might need to rehabilitate?
Ultimately might try to convert it to a sailing canoe.

got the bottom stitched on. epoxy glass should be here in a few days

got the bottom stitched on. epoxy and glass should be here in a few days

>>2645036
That's a reasonable price for that size and material, assuming it was halfway well built and has no major damage from a collision or falling off a car on the freeway or something.
Main thing to look for is soft areas that indicate crumbly/ degraded composite or glassed in wood that has gotten wet, large cracks that indicate extreme flexing (small hairline ones in the gel coat are fairly normal)...there's not a lot to go wrong that can't be fixed pretty easily.

One thing to consider is to look up your state (or analogous) laws regarding registration of sailboats if that's in your plan, most places will want it for a sailboat that size (or to put even a trolling motor on it) and if the boat is missing an original manufacturers hull ID that might create some hurdles to getting it registered, that might treat it like a homebuilt and require taxes and inspection on top of the regular reg. fees.

If that's the case I'd suggest getting the registration first and telling them its in anticipation of adding a trolling motor, rather than adding sails or a motor and then getting it inspected.

>>2645101
Ended up buying it, it's a Mohawk Blazer 17, and looks to be in about as good shape as you could expect for a boat from the 1980s. Fiberglass is solid, no soft spots or cracks or repairs anywhere, gunnels solid and no kinks or bent areas. All in all very solid, but fuck it's heavy.
Listed as 75lbs, but feels more like 95lbs. Could be the flotation at either end getting wet (the fiberglass isn't soft or degraded there though), optimistic specs, or they also made a commercial version with thicker fiberglass. Who knows.

As far a registration, with a motor definitely have to, sailing I think technically, but they're pretty lax about non-motorized watercraft around here, so long as you have a PFD. They'll ticket the fuck out of you for that. Good idea about going ahead getting the registration anyway, I may well want to put a little trolling motor or tiny outboard on it.

After a get it out on the water a few times and get a feel for it, guess it'll be time to crack open my copy of 'Canoe Rig' and start sorting out my sailing set up.

Oh, and also realized maybe I should have bought aftermarket roof-racks that extend beyond the foot/tower rather than the sleek OEM ones. Got 37" of clear bar, and a 36" canoe... Don't even have room to attach the canoe brackets they sell, not that I was going to pay $160 for that bullshit.

>>2643662
>apocalyptic seething from the mouthbreathers
my atuocorrect made me post his

>>2643662
>>2643698
Why do people keep building bruce roberts designs? For anything other than a 45' gypsy boat full of kids that you're going to circumnavigate on with no regard for how it looks or sails, there are so many better choices. Let's be real, if you're going offshore in a 30 footer you're better served just getting a used crealock design boat if you want to go north or some production 30' boat and spending your buget retrofitting the shit out of it. For perspective our 39' freedom was 50k and I was able to put another 50k or so into it to have it pretty bombproof and with modern electronics and autopilots, sails, running rigging, spares, etc to go the distance. The boat can and has circumnavigated and you can have them ship shape for less than your build budget. in 30 feet you're primarily limited by tankage and stores, less so if you have a watermaker but good luck fitting it along with the running gear to power it. I guess given the engine you've got on hand you're probably stuck around that size boat, but I'd just sell it and add it to the retrofit budget. We have absolutely smoked gigantic bruce roberts ketches on every point of sail imaginable even when we're fully loaded out with 200gal of water, 120gal of diesel and enough spares to open a home depot. If you're not going offshore and eating miles then it's just a really slow, expensive weekender when you could've been doing 7 knots in any $5000 1980s Beneteau 305 or whatever and actually having a chance at doing some racing if that's your shtick.

I wouldn't go much bigger than 40 feet with a couple, but it's certainly manageable to single hand, you'll be much faster with the extra waterline, better in heavy weather, more room for aux equipment, stores, and the list goes on. Every extra foot between 30 and 40 adds a WEALTH of additional options. Over 40 it becomes a law of diminishing returns for a single hander or a cruising couple.

>>2644591
Isn't it a bit smol?

>>2646901
didn't want to bight off more than I could chew for my first boat

>>2646936
bite
you bite food

>>2646946
>Error: You cannot delete a post this old.

I want to make a 10 foot fiberglass jon boat kind of thing. Needs to be relatively light weight, and tough enough to put a decent motor on, but as cheap as possible to build given those 2 things. I know generally what the process is--build a form using plywood in the shape I want and then lay down the fiberglass and paint it with resin over the form--but I don't know what I'm looking for in terms of materials.

What kind of fiberglass and resin do I need, and how do I obtain them the cheapest?

>>2647036
for cheap as possible I would go with polyester resin. would't use it inside, the fumes stink. 1/4" plywood and 6oz fiberglass should be plenty strong for the hull. for the transom to layers of 5/8 ply has worked for me. exterior plywood from the home center works okay. dont forget spar varnish to protect it from uv
https://fiberglasssupplydepot.com/

>>2647064
So you would use plywood and fiberglass? I was just going to use plywood to make the hull shaping form and remove it all when the project was done, the finished project would be entirely fiberglass except the transom. Or does that not work?

How many layers of the 6oz fiberglass would I need?

>>2647074
I dont really know much about fiberglass hulls. everything Ive done was fiberglass on wood. you could also get the shape of the hull with foam and glass it like surfboard. just dont use polyester resin on foam it will melt
https://youtu.be/jEmzXgafluE
https://youtu.be/0HHIExpHjM4

>>2647036
I have no valuable input except to mention the possibility of poor man's fiberglass, i.e. old bedsheets and titebond 2 or some other waterproof glue

not as strong and not as waterproof but also a small fraction of the cost, can be good enough layered over foam or plywood and holds up okay as long as it doesn't live in the water 24/7

>>2647074
You can certainly lay up fiberglass over a male mold and make an all glass hull, but to get the same stiffness in a small boat that you would with glass over plywood you'd end up with a much heavier and more expensive hull that would likely still need extra fabrication work to be usable and durable...stufff like stringers, reinforcing the chines and bottom, especially in a johnboat with big flat expanses that will flap and flutter and oil can under power without them.

>>2647036
I dunno where you live but around here you can find old jon boats for as little as $100 sometimes, more often $200-300. The cost of glass and epoxy to build your own is going to be probably double that, plus the plywood or whatever. Economics just aren't there for building something so common.

>>2647674
Yeah but I have a weird and probably retarded idea. I want to make a truck camper cap (over a platform I already built over the cab and the bed, not just for the bed) which is about 10 feet long and a couple feet tall, that can be flipped over and put in the water as a boat. I said jon boat because that has the flat bottom and rough shape of the kind of cap I am looking for.

>>2647687
Not that retarded, similar convertible camper/ boat packages go back to the 1950s at least, although they're usually on a trailer.

Still being made-

https://www.awesomeinventions.com/retro-campers-with-row-boat-roof/

>>2647687
Sounds pretty based, go for it and post progress. Love crazy shit like that.

>>2647718
1950s style was something else lol. Nobody matches their boat to their car anymore, guess no fun is allowed.

Is there any reason why I shouldn't make my own float pods with plywood and fiberglass? the aluminum ones seem a bit pricey

>>2647718
>>2647975
thanks for the encouragement frens. I'm still at the stage of pricing it out and deciding whether or not it's feasible at this point as I already have way more projects going on than I have time or money for. But if and when I do it I'll definitely post pics. I would love to do it with bed sheets and Titebond like >>2647238 said for the pure MacGyver redneck aesthetic as well as the cost cutting.

>>2647991
Plywood and fiberglass is going to be way heavier than aluminum and probably not perform the same

>>2616674
I don't even know the subject, but you are just one annoying person. Would hate to deal with you irl.

No

>trimming the fiberglass with a fresh knife blade after the epoxy sets up

>>2637725

Where are you that you get that much rain? I ask because I want to move there.

could I use pic rel with pigment for a one and done. dont want to bother with sealing then painting and gelcoat

>>2652336
can you be more specific? Are you laminating fiberglass?

>>2645047
thats very nice? Is there a reason for the flat bottom?

>>2652465
glassed all the joints but need to buy more epoxy to seal the plywood. that raka epoxy with pigment seemed like an inexpensive alternative to regular epoxy+paint
>>2652467
simplicity

>>2652477
I dont see why you shouldnt use that epoxy for coating. I only have experience with foam and grp construction though.
I think that what you'll find with the flat bottom is that the craft will be stable enough in calm water but not so stable if there are waves. Did you design it yourself? I'd like to design a more V-shaped one, the challenge would be to ensure the surfaces can be flattened. Did you do it by feel or use some method?

>>2652828
>Did you design it yourself?
yes
>Did you do it by feel or use some method?
the sides and transom were cut to make best use of the plywood. then I just played around with spreaders until I liked the shape and cut the bottom to fit.

>>2652477
It's fine for sealing and assuming g the UV inhibitor works doesn't need anything else...but making a clear epoxy base opaque by adding pigment can change its adhesive/penetrative and wear qualities significantly and create a material that doesn't create a robust sealant/wear layer *or* block out what's underneath it very well.

At the very least experiment with the mix...also be aware that some liquid additives can cause epoxy to foam.

>>2652953
Did you epoxy it yet? I want to see what it looks like.

>>2654744
not yet. Im going to check out a local boat supply shop to see what they have before ordering more epoxy

got the bow cap and the gunwales on

make a pirogue or pick this one up to restore?

>>2655482
looks pretty sweet. how much is it

>>2655482
That's a classic combo and looks pretty complete..not as practical as a pirogue but a blast to mess around in and plenty of people into them so fairly good support...looks like a Sea Flea or maybe a MiniMost

https://muskokaseaflea.ca/StaticWeb2/

If it's not stupid expensive I'd snap that up in a heartbeat. For an idea of what the market is like-

https://muskokaseaflea.ca/bb/index.php?board=2.0

>>2655546
1/4" ply seems pretty thin for a boat

>>2655556
Shit tons of small boats larger than that one are skinned in 1/4" ply and do just fine as long as you understand that lightweight boats aren't meant to be thrashed around on rocks or over logs and debris. It's a speed- / race- boat.

Those little hydroplanes also benefit from that skin being stressed into that curved shape, it's monocoque construction and that allows for lighter materials because that skin is part of the structural framework, not just an envelope to keep water out.

>>2655570
But that diagram doesn't show a stressed skin.

>>2655576
Yes it does if you know what you are looking at...see the curved cross piece that springs the deck and bottom plywood into a curved shape, and and the center strut and corresponding curved dart in the bottom sheet that allows it to be curved in the forward direction when fixed to that strut?

There's no traditional frame; the cross piece, strut and two stringers act to pop the two sheets of plywood into a lenticular hull shape and hold them in tension, and the plywood skin is what holds them all in place.

>>2655606
Pic related

>>2655576
From the plan brief.

>>2655513
$200

>>2655546
I borrowed some cash i'll get it in the morning

>>2655607
>>2655612

>>2655725
Perfect, that motor alone is probably worth that to a collector, even if it's just for parts.

>>2614253

When i was a little kid my dad was a poorfag and he made a boat out of plywood. I remember taking it down the river with him using a improvised push pole. I dont remember it lasting more than one season i think he built it to fog gig.

>>2655954
Just for fun I looked it up, if it's a twin cylinder it's a 1948 7.5 hp which is a nice size for that hull and will make for a sweet periid correct vintage package when it's all fixed up.

chaparral 178xl with the purchase of my Lake house. Got a lot of work to get it water ready, control panel is disintegrated due to weather but components look ok. How would you go about finding manual/wiring diagram for a boat this is??

Here are some boats that I have built. First one is a Spira Dory that was super easy

This is a cabin modification on the Dory which I built in a tiny ass garage and couldn't really see the proportions. In the wooden boat world there's also a warning not to build something with a new design in a tiny shop because you can't see the proportions. Oh well, this was a learning lesson in many ways. I ended up taking the cabin off a few years later

Here is a pooduck skiff I built. This was a pretty fun boat but I got ride of it and want to build a Welsford Navigator or Pathfinder instead. I'm probably better off just buying the Drascombe Lugger I want but what's the fun in that?

These stupid fucking captchas are so difficult which is why I haven't participated in this thread earlier and unfortunately why I won't continue. This is my current build. A Welsford design Joansa rowboat that I'll also put an electric motor on and detachable solar setup for long days fishing. This boat is car toppable and I'm building it to be my go to adventure/fishing boat. The older I get the more I appreciate smaller boats that get a lot done. Once this is finished I'll start a PT Skiff

Last one. This is a Tumlaren that I spent way too much time restoring. A tip to any of you is to never buy a traditional wood boat.

>>2658068
A man can build a boat but can't pass the captcha, incredible.
Very neat boats though, I live way too far away from to make anything more than a canoe worth my time, unfortunately.

>>2658073
>never buy a traditional wood boat.

Have to agree with this as generally good advice; it works for some people who have more money than sense or a monomaniacal personality, but if you just want to have fun on the water and not be tied to an endless maintenence schedule get anything but a planked wooden boat.

If you really, really love old boats and want to help preserve them, learn to work on them and work on other people's boats for a few years and any desire to burden yourself with one will likely vanish.

>>2658132
Unironically true. It's like trying to trim out a house floating in a sea of decay every damn year.

>>2658064
I actually really like this design.

>>2658132
>if you just want to have fun on the water and not be tied to an endless maintenence schedule get anything but a planked wooden boat.
plywood covered in epoxy is ok no? How can it rot if it is completly sealed in epoxy?

I take it this refers to using some kind of natural oil to achieve waterproofness and having to regurlarly apply more oil.

>>2659504
>how can it rust if it's completely covered in paint?
that's you, that's what you sound like.

>>2659504
Simply "covering" plywood with epoxy is little more than using a really thick/tough paint. Not only can it abrade and break down (crack, chip, peel) like paint, when it does and moisture penetrates into the boat's structure and the structure of the plywood itself, being fully encapsulated like that means the moisture has a harder time migrating back out.
That promotes rot and also swelling that weakens plywood and promotes more cracking, chipping, peeling, etc.

You can *saturate* wood with epoxy and significsntly improve its water/ rot resistance but that's a different process and plywood isn't well suited for the kind of deep saturation this requires to work.

Plywood covered with fiberglass reinfirced epoxy is different, the fiberglass adds strength and stiffness to the plastic that (short of a collision or other abuse) prevents that kind of damage that allows water penetration.

Even then, in many cases the interior side of the ply is often sealed with a less impervious coating like paint so that it can breathe any allow any moisture that might get in a way to get back out.

>>2659504
>I take it this refers to using some kind of natural oil to achieve waterproofness and having to regurlarly apply more oil.

No, it's a common misconception that traditional planked wooden boats are made waterproof...
What seals them against leaks is the pressure created by the expansion of the planks when they are exposed to water, which tightens up the caulked seams.

It's normal for planked boats to leak when first launched, and then stop once that swelling has occurred. But if you don't use the boat a lot, a planked sailboat's normally dry above water hull seams may leak a bit when heeled over.

All of that means constant attention; a small boat that doesn't live in water may be at less risk but they're hardly maintenence free when left that way, and larger boats that are left out of the water too long can be completely ruined by drying out too much.

All of this is why wooden boats are often referred to as living things; they are very sensitive to their environment, and are prone to disease and physical breakdown from lack of care, abuse and old age. It's not just the work thats a a PITA, they need constant monitoring to anticipate problems if you wa t them to be alwaysxat the ready.

So Steve says Arabela is at her designed weight but even with empty tankage she sits so far below her waterline her bobstay and mizzon chainplates are partly submerged. What's your guess as to why the boat has so much less buoyancy then it should or is Steve lying about the weight?

>>2661157
There's so much in that picture that screams youtube sailor. I don't know how you can overload an Ingrid to that point but it'd have to be tons over weight for her to squat that far down. She's drafting an extra foot+ ez. Can't even see her lines.

>>2661490
>She's drafting an extra foot+ ez.
She's definitely heavy but this is utter bullshit.
>Can't even see her lines.
There's so much in this post that screams
LARPing clown.

>>2661490
I went back to the launch video and captured this. You can see Arabela's painted waterline and judging by her bobstay chainplate being completely submerged you might be right at least at the bow. I don't think she's as heavy in the stern which is odd. They've been glossing over so much since launch we don't even know if she was trimmed. So far he's just been motoring her around to boat shows so it's not like it matters.

Their lack of actual experience sailing is evident. In this last video instead of turning into the wind they struggled raising sail while reaching. They even explain that they didn't plan on raising the sails that day but, "because there was a weather system moving in blowing gale force winds" they had to raise the sail. So their response to possible gale force winds was to raise every square of canvas they had. Steve also climbs the stick while underway because the cameraman thought, "it'd be cool" and then ties his foot to the tiller because.... reasons.

>>2661157
Still way better than certain someone who painted his waterline like 2 feet above the design level and it still went completely into the water lmao

>>2661157
>>2661490
>>2661495
>>2661917
you faggots got tired of bitching about doug, so now you're going after steve? jesus you clowns need to get laid.

>>2661980
thats just what real men do boy. you must have been raised by a women
>>2661987
only real man in this thread

>>2661987
Anon brought up a valid concern that steve is obviously avoiding so I ask you how should one criticize steve without triggering your white knight reflex?

>>2661993
It's impossible, he can't *not* mention Doug just so he can rant about his detractors who never said shit about Doug itt.

Literally the ONLY person who mentioned him, because he's obsessed with Doug's "haters" and can't get anyone to talk to him about it on his dead Seeker subreddit.

Anyone have experience working from this book?

>the look when you spent the last 7 years of your life, most of your savings, and lost your best friend building a dream boat only to realize you hate the people around you and aren't cut out for sailing.

>>2661987
>slow board
>slow thread
>someone mentions Seeker in a roundabout way
>not even half an hour later:
>REEEEEEEEEEEEE
Dude that's way past unhealthy obsession. Do you ever rest?

>>2661157
There's no way the hull can have less buoyancy unless he didn't follow the plans. Didn't he swap out the planking for heavier wood? Did he shave down the keel lead to compensate? I think the boat is just heavy. How could she be at her designed weight using different planks.

>>2662124
I'm not the one going all pic related because a guy actually acheived his dream and is actually sailing his ship now. there is a trend on this site of somone one builds something, all the jealous retards come out of the woodwork and find any tiny little thing to complain about.

none of you could do anything you bitch about other people doing. no skills, no money, no charisma to convince others to help you.

just waaah bitch waaahhh criticise waaahhh grumble.


IWSYR

>>2662357
I'll ask Sir White Knight again. How does one criticize steve without triggering you? Arabella is definitely sitting lower than she should. Can you even acknowledge that?

>>2662357
has he even made it to the gulf? I could swim faster than his boat sails, with the engine (how's that tranny btw?)

>>2662366
He's actually heading north. I think to Maine. No idea what his long term plans are. The last video he ended talking about how testy he is and how the nerves are frayed onboard because of deadline stresses which they thought would go away after launch day but haven't. I hope he can relax a bit and start enjoying life because at this rate he'll chase off the his friends.

>>2662357
>there is a trend on this site of somone one builds something, all the jealous retards come out of the woodwork and find any tiny little thing to complain about.

We get it, Doug, Stockton Rush is an inspirational hero beyond criticism, and anyone who questions people like him and you isn't fit to scrape his compressed bio-goo off his game controller, or to empty Seeker's shit bucket, or cast their gaze upon the placecwhere Arabella's boot strip should be, but isn't.

Now go scrape the barnacles off your janky hilk.

>>2662370
He's asking about Seeker I believe

>>2662366
Went out for like a few hundred feet in dead calm one or two times and tested the anchoring in giant 2 ft swells (lazed around in a hammock watching the anchor drag alarm app) just the other day.
Tranny is restrained for now, likely pending a popped bearing or something else because the wobble will find a way out eventually.

>>2662393
I'm still in awe of the design decision "let's require a complete engine removal to service the highest wear item in the entire powertrain"

>>2662393
>He's asking about Seeker I believe
Oh tranny as in transmission, not the creature Steve has been hanging around for the last few months. My bad.

>>2662393
Does anyone know what this metal frame is for, I haven't seen anything like it.

>>2662426
It routes the jib sheets back to the pilot house and cradles the jib when down.

>>2662401
I'm (also) in awe of not using plentiful manual truck gearboxes.

>>2662429
There is no jib on Seeker, it's a junk schooner rig with a mizzen, mainsail and foresail.

>>2662357
>made a show out of neglecting safety and now has progressing brain damage from chronic heavy metal poisoning
>chased away his wife, family, friends and every single knowledgeable and experienced person from his life
>surrounded himself with equally clueless boomers instead, whose only selection criteria was giving him free shit and never arguing with his decisions
>wasted all his savings and last active years of his life on building a steel monstrosity that's severely overweight and unable to handle any kind of heavy seas or strong wind due to lack of stability, lack of freeboard and a massive bathtub of a deck that has better drainage into the hold than overboard, on top of multiple other serious issues
>had to fix or rebuild every major part of the boat at least once
>has his dream goalposts constantly on the move from "free research sailing vessel" to "we had fun building these failures"
Please enlighten me what exactly am I supposed to be jealous of

>>2662710
I'm jealous of that massive monstrous gilf he's slamming.

>>2662718

>>2651918
Gulf Coast, it's wet as fuck around here (usually), though the last two weeks we've had no real rain. Actually been having to water my garden lol.

hey guys I'm a retard that bought an inflatable dingy, it's actually not terrible if you're a midget like me but I want to make a wooden floor. i have some 3/4" plywood and some shitty low pile carpet. how would I make it waterproof but also adhere the carpet to it? what would be the best way without destroying the boat, my wallet, or the materials?

>>2663971
plywood not made with waterproof glues will never be really waterproof but as long as it doesn't soak and dries out regularly it'll last for a decent time. If it's exterior grade plywood it'll last longer and if you really want to you can use epoxy resin to add a decent bit of waterproofing but that stuff is expensive and probably not really worth it. Also carpet tends to get kind of gross outdoors if it's not made for it.
I'd just cut out a shape that'll sit nicely in the bottom, spray adhesive the carpet to it and then throw it out in a couple years when it's at the end of its life. Make sure it's smooth and maybe slit a rubber hose and wrap it around the edge to reduce wear on the boat and I don't see any reason to complicate it more than that.

>>2663971
are you from that thread on /out/