Lofting a plywood boat

I begin to loft the longitudinals for my plywood-composite boat.
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Пікірлер: 77

  • @pseudopetrus
    @pseudopetrus5 жыл бұрын

    I hear you loud and clear about making mistakes when you are tired. I am a framer and home renovator, and I always do my tricky work in the mornings, I finish up with doing more mundane tasks through the afternoon. Great video, thanks so much!

  • @DangarMarine

    @DangarMarine

    5 жыл бұрын

    Yeah, that really is my trouble. I tend to only have time to work on this at the end of a work day before going home which really isn't ideal. I wish it was at home rather than at the workshop.

  • @PainterD54
    @PainterD54 Жыл бұрын

    I've been drawing curves since I can't remember (about 50 years) and I've always just used a piece of string and a pencil. Start between two points to make a radius with a pivot point to be determined by putting the pencil end of the string on the starting point then by trial and error, find the pivot point with the other end of the string by touching the pencil on the start and end points till you get the correct arch with the string, then draw your radius. It's alot easier and faster. Then once you cut one side, just take the piece you cut off and use it to make the other side. Easy peasy!

  • @rogerdeves1511
    @rogerdeves15113 жыл бұрын

    Great stuff Stu

  • @kr1886
    @kr18866 жыл бұрын

    We learn more from our mistakes sometimes so thanks for your honesty and enjoying your build!

  • @DangarMarine

    @DangarMarine

    6 жыл бұрын

    Yes, this is something that I (hopefully!) won't do again. :)

  • @markmiller381
    @markmiller3816 жыл бұрын

    Must be a sign, I've spoken to Mark and have been deliberating about building my own for the last couple of months. Your vids have inspired me to give it a crack so thanks and I'll be sure to keep following.

  • @DangarMarine

    @DangarMarine

    6 жыл бұрын

    I'm enjoying the build so far, just a bit stalled on my local supplier getting more plywood in. Hopefully I'll be picking this project up again soon/

  • @keonfrederic1857
    @keonfrederic18576 жыл бұрын

    It's not like no one has never made any mistakes, right? The great thing is that you caught it. Great video. Cheers from Seattle!

  • @DangarMarine

    @DangarMarine

    6 жыл бұрын

    Thanks Keon, yes, a mistake you catch is a mistake you can fix! :)

  • @gogs1468
    @gogs14686 жыл бұрын

    It's becoming to look like a boat coming together. Yes when you are tired mistakes happen. Another great video.

  • @DangarMarine

    @DangarMarine

    6 жыл бұрын

    Thanks mate. I'm certainly going to be careful of this in the future. I was actually rushing because I didn't have any other video to upload this week which is a silly reason. I'll do some mechanical vids in the meantime and let this project take its due course.

  • @thilltony3362
    @thilltony33626 жыл бұрын

    Stu, One thing I found was very helpful was having various colors of razor point pens. I would start out in pencil, then once I double checked everything, I would mark it in colored pen. One in blue, one in green, one in orange and so on. That way, it was easy to cut out each part without fear of cutting the wrong line. I made all my benchmark lines in RED, meaning "do not cut this line". Great progress so far. Keep up the good work! -Tony

  • @DangarMarine

    @DangarMarine

    6 жыл бұрын

    Thanks mate, that’s a really good tip. It also occurred to me afterwards that I could have laid all four sheets out and lofted all three from a factory edge then traced the other three anywhere they could fit. Much simpler! I’m on a camping trip at the moment (hence the rush to finish that vid) and I’ve brought a copy of Gougeon Brother on Boat building. Loving every page. It’s getting me so keen to push on.

  • @johnduncan9749
    @johnduncan97496 жыл бұрын

    Hey Stu glad to hear you are taking a well deserved break. And for all that fiberglass dust get some clear plastic drop clothes and hang them up around the boat to contain it and get some Tyvek suits and a good respirator no need to be itchy and miserable.

  • @DangarMarine

    @DangarMarine

    6 жыл бұрын

    Hey John. Yes, I have some disposable Tyvek suits and a good respirator which I agree are essential. I think I will try buying a roll of plastic that I can hang down to make a temporary booth with.

  • @johnduncan9749

    @johnduncan9749

    6 жыл бұрын

    A temporary booth would work great and will come in handy when its time to lay down some paint.

  • @ronpowell2373

    @ronpowell2373

    6 жыл бұрын

    Either hire or buy an air sander with a water sprayer built in such as www.ebay.com/itm/5-Wet-Orbital-Air-Palm-Sander-NEW-/201623237133 and wet sand . Use a plastic ground sheet and some battens to make a bath tub and run to a drain. You wont get much sediment in the drain if you run the plastic out wide and let the water run slow, most of the sediment will drop out and can be scraped up and put in the rubbish bin. I have also seen people use gyproc sanders (drywall to the USA people) and vacuum at source . Saves suiting up in the heat!

  • @mallow173
    @mallow1736 жыл бұрын

    I gotta thank you for these....i'm planning a build and i've already had a few things straightened out in my mind! Love the fact that you share the mishaps along the way because that's how we learn. particularly like how easily the lofting came along as i was half scared of that!! LOL thanks again

  • @DangarMarine

    @DangarMarine

    6 жыл бұрын

    Thanks Mark, glad the vids are giving you a bit more confidence. It is surprisingly difficult to find step by step instructions for building a boat. There is information on techniques and detailed plans, but no real directions. You'll definitely be fine with the lofting, it is just a matter of going slowly and looking for anything that doesn't look right.

  • @Fireship1
    @Fireship16 жыл бұрын

    It’s looking great Stu. Looking forward to the bonding and fiberglass part of the project. Fiberglass work is the one subject where I can use more tips and training!

  • @DangarMarine

    @DangarMarine

    6 жыл бұрын

    Hey Jack, I'm looking forward to the glassing too. It is such a versatile substance and I'm looking forward to getting more practice with it. Should be a good source of new mistakes. ;)

  • @terrybullock3140
    @terrybullock31406 жыл бұрын

    Another great video. I'm loving seeing this boat coming together!

  • @DangarMarine

    @DangarMarine

    6 жыл бұрын

    Thanks Terry, won't be long until the skin goes on and it really does start to look like a boat. :)

  • @TimsWorkshopTJY
    @TimsWorkshopTJY6 жыл бұрын

    Hi Stu, I can say I have never made a mistake when tired. haha Yes but as we say in the States a learning curve. When it's all done the mistakes are a distant memory. It should be one of your proudest accomplishments when done and in the water for sure. Looking forward to the next step.

  • @DangarMarine

    @DangarMarine

    6 жыл бұрын

    You're dead right Tim about mistakes being a distant memory once you get across the finish line. I've got a funny feeling this boat building thing is going to become quite addictive so I'm pleased to think that the lessons I learn along the way will serve me well in the future. :)

  • @TimsWorkshopTJY

    @TimsWorkshopTJY

    6 жыл бұрын

    I was thinking down the road you will build a sailboat. Prefect area where you are at for one

  • @mrfrog3350
    @mrfrog33506 жыл бұрын

    Very cool Stu. It'll be looking like a boat real soon. I like the lines of the finished boat you showed a few vids back. Looking forward to the fiberglass application. Cheers from Detroit !

  • @DangarMarine

    @DangarMarine

    6 жыл бұрын

    Thanks mate. Next step after the longitudinals are in is putting the skin on the hull. I think that part is going to be tricky but it will definitely be looking a lot like a boat after that. :)

  • @ffog461
    @ffog4616 жыл бұрын

    Absolutely love your videos. Thanks so much for sharing! I also appreciate your honesty. 6 mil, 9 mil. I would have never known. Best of luck and looking forward to the next video. (I'm from Kansas City. Smack in the middle of the USA.)

  • @DangarMarine

    @DangarMarine

    6 жыл бұрын

    Thanks mate, glad to hear you are enjoying the vid. It was a silly mistake, but fortunately one that isn't going to cost me too dearly.

  • @villagevillage2400
    @villagevillage24005 жыл бұрын

    Cheers mate your videos are truly exceptional! Legend

  • @undrasmith1087

    @undrasmith1087

    4 жыл бұрын

    *@Yasser Flehan* If you want a big collection of boat plans visit this site here: www.BoatPlan. xyz

  • @garystetler4358
    @garystetler43586 жыл бұрын

    I agree with Mr Saunders - don't forget the Coopers!

  • @DangarMarine

    @DangarMarine

    6 жыл бұрын

    The missing ingredient!

  • @stanpatterson5033
    @stanpatterson50336 жыл бұрын

    Haven't we all had an incident such as this? Fortunately, no injuries, and not too costly. But it does happen quickly and easily. Being tired and being dehydrated are just a few of the dangers. Anyways, as you were describing the mis-read incident and proposing photocopying it and cutting out the copies, I was thinking... just cover up the surrounding diagrams with other books, newspapers, wood scraps, etc to keep your eyes from inadvertently reverting to the "wrong" illustration. Don't want to see your project get delayed, but perhaps ol' Stu deserves some "me time" at home with just the family and some relaxing down time. Hope it's a nice easy weekend.

  • @DangarMarine

    @DangarMarine

    6 жыл бұрын

    Hey Stan, actually on a nice camping trip to the beach this weekend for a long overdue rest. Yes, I took thought about covering the other diagrams up by taping some paper over them but I started to worry the tape wouldn’t come off cleanly. Perhaps even blutac would work. Anyway, back to the view. ;)

  • @GlennMartinez
    @GlennMartinez4 жыл бұрын

    Great video, I am Replacing the Ribs of my 26 ft. McCune Sloop. Clueless on how to map out the curve of hull, think I can give it a go now! I will make a donation towards a coffee or beer break! Aloha, Capt. Glenn

  • @vetterfellow
    @vetterfellow6 жыл бұрын

    Thanks Stu; Very interesting & entertaining video.... Angelo.

  • @DangarMarine

    @DangarMarine

    6 жыл бұрын

    Thanks Angelo. :)

  • @tyspoonus252
    @tyspoonus2526 жыл бұрын

    mistakes were made because i didnt see any coopers... good to watch this come to life!

  • @DangarMarine

    @DangarMarine

    6 жыл бұрын

    And there wasn't any Coopers because I was too tired and worried it would put me to sleep. The perfect storm of mistakes!

  • @Scotty3ist
    @Scotty3ist6 жыл бұрын

    Great video! -jack

  • @DangarMarine

    @DangarMarine

    6 жыл бұрын

    Thanks Jack. :)

  • @rodmoyes2235
    @rodmoyes22356 жыл бұрын

    Another helpful video. My choice to build is the Bateau Boats Classic 19. What thickness of ply is specified on your plans.

  • @DangarMarine

    @DangarMarine

    6 жыл бұрын

    Thanks Rod. The Classic 19 looks like a really great boat, I like its lines. Mine specifies 9mm for the framing and decks and 6mm for the skin with a layer of fibreglass both inside and out over everything.

  • @gstep51
    @gstep516 жыл бұрын

    Looks like a fun project. I am curious as to how a wooden boat will stand up to a saltwater environment. What finish will you use? Given your ingenuity, I have no doubt it will be a prize.

  • @DangarMarine

    @DangarMarine

    6 жыл бұрын

    Hey Greg. I think this boat will hold up better than aluminium when it comes to salt. The timber gets completely coated in epoxy and fibreglass and then painted. Out of interest, fresh water rots timber much faster than salt water.

  • @googleplusisdead
    @googleplusisdead6 жыл бұрын

    Great series, thanks for doing it all as you go. I was wondering why you don't put both pieces of plywood together to cut out the duplicate pieces, vs. cutting one and using it for a template, with the problems that can cause? RichE

  • @DangarMarine

    @DangarMarine

    6 жыл бұрын

    You could definitely give that a go. You would need to clamp them well and in places that wouldn't interfere with the saw. The circular saw would be fine with the thickness, but my jigsaw might struggle a little bit.

  • @pierozzisandro
    @pierozzisandro6 жыл бұрын

    Howdy Stu, is this one of our good fella Mark Bowdidge's design? Can't tell how many hours I spent on these plans and it looks like an Edge Tracker 487 from here :) :) :)

  • @sandeepjosyula-stitchedpan3097
    @sandeepjosyula-stitchedpan30974 жыл бұрын

    Are there any alternative names for the "batten" you are using at the 4:34 mark ? Trying to find a 12 - 15 feet version of this at a homedepot or lowes store

  • @jimbogasoline2042
    @jimbogasoline20426 жыл бұрын

    Great job Stu! It is coming along nice. I think after the skin is done, you will have a great feeling seeing the fruits of your labor and can see it really take form. When I build the frame of fish tank stand and canopy I know it's not much longer. An ASS LOAD of sanding is the only part I hate to think about after the skin. I also don't have to deal with the fiberglass and epoxy portion either. Does this build require a lot of sanding, or do you just need to scuff the wood for the resin?

  • @DangarMarine

    @DangarMarine

    6 жыл бұрын

    Hey Jim. I don't think sanding is anyone's favourite job. Once the glass is on the hull, you add a final layer of epoxy that has some small glass beads in it to make the epoxy resin into a thicker bog (for want of a better word). Once that sets you need to sand it back which I think is going to be the worst of it. My biggest worry really is where to do it. I don't want to cover everything in the workshop with a fine layer of dust or have it go into the environment. I think I might have to invest in a vacuum sander one day.

  • @dyemanoz

    @dyemanoz

    6 жыл бұрын

    There's a variety of fillers to use to thicken epoxy. Real solid ones make extra strong structural adhesive but almost impossible to sand. Middling dense ones are good for filleting (tabbing). Then there are hollow ones (microballoons) that are good for final fairing and much easier to sand prior to final finishing. www.westsystem.com/filler-selection-guide/ Haven't tried it myself (though I intend to when I finally get around to more fibreglassing :-) ) but one way to get a good initial finish on fibregass cloth is to use peel ply - lays over newly fresh glass/epoxy, excess epoxy seeps through, and after peeling off leaves a smooth surface that should require little sanding, both because it's smooth and, because any amine blush is on the surface of the peel ply and thus is removed when the peel ply is peeled off (so to speak!). Should also be ready for application of a second fibreglass layer where required. Can get it on ebay or places like Boatcraft Pacific (along with the heaps of disposable brushes and foam rollers that you'll inevitably need!) (You're inspiring me to get back to my current unfinished boatbuilding project - Thanks!!)

  • @DangarMarine

    @DangarMarine

    6 жыл бұрын

    Yes, I currently have two types of beads - one for gluing fillets etc (I think it's called Cabosil) and microballoons for fairing which is much easier to sand as you say. Interesting technique about the peel off layers, I'll have to look into that. Anything that avoids sanding has got to be good!

  • @normanboyes4983
    @normanboyes49836 жыл бұрын

    Hi Stu Well I think your deliberate mistake is going to prove very useful indeed.😉 It’s kinda funny no matter how much care you take there is a legion of opportunities to make errors. Anyway keep up the good work it’s starting to shape now.👍 Do the drawings call for wooden fillets at the intersections of frame and bulkhead? - I would have thought a nice (small) triangular section bit of timber would add strength and make for better glass fibre layup.

  • @DangarMarine

    @DangarMarine

    6 жыл бұрын

    Hey Norman, you're not wrong about there being plenty of opportunities for things to go wrong! The building methods call for epoxy to go in the gap of the join, then once that is set the boat is turned over. Once it is right way up a mixture of resin and thickening glass beads is mixed to make to epoxy fillets on both sides of every join before glassing.

  • @TheMrkylester101
    @TheMrkylester1012 жыл бұрын

    Which design was this?

  • @matthood7546
    @matthood75466 жыл бұрын

    If it's anything like my boat build has gone you'll use the scraps from the screw-up for something!

  • @DangarMarine

    @DangarMarine

    6 жыл бұрын

    For sure Matt, I'm always looking for a piece of ply for some small project. I'm sure none of it will go to waste!

  • @Yasserflehan1970
    @Yasserflehan19706 жыл бұрын

    Hi Can I use the spark for mercury 200HP BPZ8HS-10 in Yamaha 200hp and why,for Yamaha is BR8HS-10 Spark plug. Your answer is important for me. Yasser

  • @DangarMarine

    @DangarMarine

    6 жыл бұрын

    I'd be careful substituting a "P" plug for a regular as the outboard may not have the clearance between the top of the piston and the spark plug goo.gl/images/P1Cebr

  • @hansslob6749
    @hansslob67496 жыл бұрын

    Shit happens and the trick is to make shit into something usefull. Thats what you did, making it templates. I would have cursed, throwing it in the corner and start all over setting the marks on 9 mm plates. I think you solution is the better one!! And maybe, some other viewer can use them as templates for his new boat. I like the way you bring this videos, not only the successes but also the failures.

  • @DangarMarine

    @DangarMarine

    6 жыл бұрын

    Thanks Hans, it's a bit embarrassing at the time but people had to find out eventually that I'm not perfect, not even close, just ask my wife. ;) It did occur to me that they will be very handy if I make another boat the same so I'll definitely keep them somewhere safe.

  • @TonyRule
    @TonyRule5 жыл бұрын

    4:01 Does that deduction for transom thickness apply to the outemost longitudinals? I would have thought it would be better to have the transom outside edges flush with the inside of the outer longitudinals so you're them into the heavier transom not the other way around - also, better to have fixings in shear than tension. Presumably there are still internal corner battens glued, screwed and epoxy faired in anyway? BTW the link from the original video to the plans bowdidgemarinedesigns.com/ROGUEWAVE_XR-16.html is broken - it appears he's withdrawn the Roguewave XR-16 model from the choices. I was wondering if he also supplies DXFs for cutting.

  • @DangarMarine

    @DangarMarine

    5 жыл бұрын

    The outer skin comes to the back of the transom, yes. Not sure why the those plans aren't there anymore. I noticed that too.

  • @Yes-kl5ws
    @Yes-kl5ws6 жыл бұрын

    I need summer

  • @DangarMarine

    @DangarMarine

    6 жыл бұрын

    Winter is a great time for a boat building project though. ;)

  • @fortindelacruz199
    @fortindelacruz1993 жыл бұрын

    Good morning sir. Can you please help me to take a copy of your boat plan because i dot no how to make a boat sir thanks in have a great Monday sir.

  • @Yasserflehan1970
    @Yasserflehan19706 жыл бұрын

    I mean i already send to you email to you and wating your replay

  • @DangarMarine

    @DangarMarine

    6 жыл бұрын

    I'm much slower at getting through emails that comments, if it is just a simple question you are better off asking here.

  • @starrstewart7083
    @starrstewart70834 жыл бұрын

    Go to Woodprix webpage if you'd like to know how to build it. Good solutions for everyone I think

  • @Yasserflehan1970
    @Yasserflehan19706 жыл бұрын

    Hi Can you see your email, I send email to you.

  • @DangarMarine

    @DangarMarine

    6 жыл бұрын

    It's on the channel page.