⛵️ Hurricane-damaged DIY catamaran. The leaky deck-hull joint 💦 Ep 603
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- เผยแพร่เมื่อ 23 พ.ย. 2024
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Mads, I have the new catamaran name: Hermes. In Greek mythology, Hermes was the half sibling of Athena. Hermes was the protector of travelers. He was also the god of commerce, eloquence, invention, and travel.
Perfect!
“Man Glitter” would be a good name too…
Nope perfect name is Ares. Mad's has gone to war against this boat.
"Leakin Lena" is an appropriate name 😅😂😅
Don't they make handbags.
Great episode, Mads. It's very evident you thrive doing DIY stuff.
Hi guys...tuning in from 34,000ft over Alaska, on my way to Japan.
Can't miss my weekly Mads fix...
Safe travels! 🙂
Bravo, Mads! 🎉 I respect your dedication to The First Rule of Boating: Keep The Water On The Outside! 🎉 It’s always a pleasure to see you! ❤
I never knew. Thumb twiddling is an international system of waiting for things - I'm so happy to see you demonstrate Mads haha!
You can use a couple of rachet straps as cross bracing to stiffen up the scaffold. (from personal experience)
Mads, the best professional way to find leaks is to close up the boat. Then shop a leafblower or shop vac exhaust to pressurize the interior, through a large hole. As you let it run, you spray the exterior with soapy water. Any cracks or holes will literally blow bubbles--sometimes from the most unlikely places. That means no matter how odd a path the leak takes, you WILL see the actual entry point of the water.
Just be careful on deck, the soapy water makes it dangerous to walk around.
Smoke
It is good to see you making progress. May God continue to bless you brother.
I wish i had that engineer Brain like our wonderful host . Seems both sides of his brain work. Personality and Lenier.
Thanks for all the effort you put in to your epsodes
Explaining everything as always!
Your dedication to craftsmanship is inspiring. Very best of luck and as always, thank you for sharing.
Thanks for the shoutout and yes, please keep the pointy stick up.
Lovely timing for the video :)
I hope you enjoy it! 🙂
@@SailLife sure did :)
Heck Mads, my son owns a small machine shop with two cnc machines, but we are on the west coast. If you cannot find a volunteer in your area, you can put the job out on a machinist board called, "Xometry."
Beginning of video hanging on to that staircase railing like a boss 😅😂😅😊
I’m sure Ava is proud 😎
Do you think you will ever cut the lip off the edge of the top of the hulls where the deck joint meets and then fiberglass the two together so that they are permanently affixed? Great video thanks for sharing as always.
Hi Mads, very inspiring to watch you work on all the projects you have gone through. I am in awe with the amount of work ahead of you on the new boat.
I do not know if at as been mentioned before, but it is kind of funny that the boats name is presently “Care Free” 😊
Keep up the good work!
Thanks for the Video
GREAT WORK , MADS
I live about as far away from Florida as possible in Washington state but do own a CNC big enough to cut your parts so swinging by would be out of the way. Despite what most people think CNC milling is not what I would call fast. A few hours wont cut it for parts of that size with that level of detail. Cutting the texture will be slow to mill depending on the level of detail you likely want. MDF may not be your best choice for your molds it tends to get furry/porous and takes a lot of work to get a nice finish not to mention it is basically a sponge and is a pain to seal cut surfaces. This will make it very hard to get a nice clean tread pattern. One big thing when designing your part a tool needs to cut it so make the design tooling friendly. This will greatly reduce the cutting time and will leave a better finish. This sounds like a interesting project I hope you find someone help. I would love to see how you make this work.
Congrats on the easy leak repair, guys like you and I very seldom come across fixes that are that easy. As always, thanks for sharing!
Good work on the hull flange joint!
What a bummer about the deck-hull joint. I am grateful that our joint is fully glassed up tight from the inside with many layers of glass. Hallberg-Rassey does a great job with this and the deck and hull snap together like a Tupperware lid. The bare ends are hidden behind the teak cap rails and any voids between the halves are filled with fiberglass putty.
My old sailing club had a Catalina 30 and we were getting a ton of water in the bilge during spirited sails. We found the deck and hull to have separated on the port side about midships wide enough that somone could stick their fingers out from inside and somone else could play tiddlywinks with them from outside. 1/4" fasteners
Spaced every 6 inches and a ton of butyl tape in the gap and we were able to close it right back up to being water-tight again.
Mats I used 30 wedges to slightly open the deck/hull connection to remove/clean/sand/degrease the joint before applying new sealant.( opening up enough to reach the with of the joint)
Loos fitting the screws and after a few hours thighten them with care. ( 8nm)
Great video. I am a Canadian citizen in the Philippines. Your videos are a must see for me.
Cheers
Always a joy to watch your projects. 🤗⛵
Mads, fix a length of timber diagonally each side of (a diagonal cross as you look through) your wobbly yellow tower. Watching you on top of it, shows it racking 😊
Thanks for the update.🙂
Have a good week.
Stay safe and we'll see you next week.
Can you please explain why you used more sealant in the deck hull joint and didn’t just epoxy it?
always a intellectual treat ! good job mads
Just a quick hint..... take at least one wheel off your trailer to stop the bad guys. I had my trailer locked with ball joint preventers, pad locks etc., but still had mine stolen out of my back driveway........
Great planer…had mine for years. I suggest the I feed and out feed tables.
Mads, use max resolution, for points in your scans. Makes for huge files, but, better results for the output.
Johan from Ran Sailing, found that out, when he was making the mold forms, for the boat they are building now.
I used survey scanners, in the mines, from 2000 till 2008.
Best wishes all
What about installing some sensors in the hollow keels to detect water ingress? something like you have in the water tanks or a simple float sensor with a swimmer and a reed contact. So that you know _when_ to look through the inspection openings
Surfshark works very well. Very good video.
Good work Mads. Solid progress forward!
A fascinating video the content and delivery spot on look forward to the next.
So Mads, your reward was "glorious glorious sanding". Who would have thought it.
Not sure how much Ava has shared but a Michigan Thanksgiving tradition is the Lions (NFL) "American" football game on Thanksgiving Day. The Lion's may be the best team in the league this year (never happened in my lifetime before.....so savory that while we can.) Bonus they are playing the Bears (Chicago) where I now live and hope to be able to gloat a bit to my rabid Bear fans...unless I have now jinxed the Lions.
I had the same issue with my « shaky scaffolding « , ….. so I build a platform and secured it to the third bar at each end of the ´ladder’. By doing so, you stiffen the scaffold and, you get a shelf for your tools and supplies as you work on the top platform above.
It’s fun to see you transition into buying American tools. I have the same sloppy scaffolding. It took me a white to get comfortable climbing 3 tiers, it gets pretty wobbly by the time you’re 20ft in the air. You’ll be buying Dewalt instead of Bosch in no time.
Great episode, things are moving forward.
What about cutting the whole deck-hull joint and glassong over it?
Why would you not fiberglass the outside jount as well as sealing it?
Mads if you keep up with the safety yellow jokes you'll have no choice but to paint the catamaran safety yellow!
Don't
Pour in foam works as a sponge, foam board does not. You can cram scrap foam board in to any empty space to create reserve buoyancy. You can also stuff them full of plastic bottles an do the same thing. each bottle becomes a separate air chamber, reducing buoyancy loss when flooding. Not perfect as it would create about half as much reserve buoyancy as the undamaged chamber has, but empty bottles are free.
I do have a CNC machine, but much to small for a project that big. I would make a fiberglass mold over your current part, as you already have the fiberglass.
Leak hunter extraordinaire! Nice work on the fix and great point about the leak mitigation with the rings. I hope you enjoy your Thanksgiving!
You're a hero
Question: Mads, watching your video a thought came to mind and that is if your "Keels" are empty or hollow and your adding an inspection port why not use a Fuel Tank type that has a clear see through cap so you can easily see without opening it up. The other thing that came to mind was is there a Type of Sensor you can place into the Keels to detect if there is water leaking inside without opening the cap? Maybe it is not needed. Lastly if the leak in the coping (edge of the deck) is due to poor sealant or bad design, how do you know that there is not more in other places on your deck? Seems it could be more of a problem, it may just not show itself now but later. Love your work please keep those tools under lock and key, maybe remove the wheels from the trailer.
May the adventure continue ~ another great episode thank you - Cheers
It is an honor and a privilege, Life by the inch is a cinch by the hard will be hard and by the mile will take a While!🎉
Yard
You can pop in a little 2x4 spreader on the bottom of that yellow scaffolding add 2 cross ratchestraps and it should be good. I bet there are some 3d scanning companies willing to sponsor you.
use a couple of 2x4's notched out for the bottom rail or perhaps a cross beam
This was an up and down video, up because it happened, down because it ended. We need longer videos! :)
Great work, luv the videos and look forward to them every week
See if you can brace some 2x6 beams cross-ways on the yellow “safety” scaffold. Long ways and that should stop the “safety” wobbling. 😊
EVERY scaffold I've ever used or ordered for other workers to use, had cross bracing. I've never seen a commercial grade scaffold without them. You might want to cobble something for yours.
Hey Mads! Have you thought of using a couple of ratchet straps diagonally to sure up your scaffold?
Liked. A handheld 3D scanner is pretty dang spiffy.
Don’t forget to do the helix upgrade to that surface planner Mads!
Ahoy! You might check out using French cleats on those tool holders.
Hi Mads, looks like you have found the weakness in your Cat, the deck hull joint. From your video we can see that the sealant glue has no adhesion (coming out in lumps). Your entire deck is attached with this and at some time in the future will fail, meaning you will forever be chasing leaks. Before you refit, you should give allot of thought to this flaw. Can you trust the rest of this joint with just sealant? After seeing the failures production boats have suffered using sealant glues to attach their hull and subframe, I wonder? But for every problem there is a solution. What are your thoughts on this? Am I being overconcerned? I have always enjoyed your vids , keep em coming.
When Bryan was working on the boat he had a cnc machine to create parts/molds. Maybe inquire as to whether it’s available for you.
Hi Mads!
Why not just CNC some G10 rather than moulding?
Ahoy 🙂 The short answer is weight 🙂 To get the same rigidity in solid glass would make them heavier than the old ones.
I’m wondering if machining out of relatively thin G10 and then laminating in stringers for stiffness would still be less work than creating molds, but easy to say that from my couch, you clearly know what you’re doing.
Battery caulk guns are really good and very expensive but, Pneumatic caulk guns are a little more controlable and MUCH cheaper! Battery power is defiantly more convenient but, you'll probably never need an electric caulk gun at sea. Actually, I just realized that I have a pneumatic that I can send you for free, let me know.
you really need to add some cross-bracing to that scaffolding, even if it is only wood 2X4. That scaffolding is a death waiting to happen. They should be outlawed without adequate bracing.
Mads if you put two diagnagnal light gauge sguare tubing on each side, they will surely counter the problem. Halifax Canada
🌴🤔Hummm, got leaks ! 3M 5200 marine sealant is our friend 😄👍🏼
Have a great thanksgiving in Detroit. We’re expecting SNOW at the north end of Lake Michigan Escanaba. Enjoy. Catalina 36 Gallivant capt. Hansen 0:15
Does stuffing that piece of sandpaper between that seam count as Glorious sanding? 😅😂😅😊
Can your leak between the hull and deck mold be capped with fiberglass? Quite a bit more work, but it would ensure a permanent fix
Was that really 20 minutes??? Time flys when you are watching the best TH-cam content!!!
I think there are user group online that have cad files for almost everything you want. You may want to join them and you can also upload your file there and ask if anyone can cut it that is local.
Since you haven't mentioned it I assume it's a bad idea, but why not glass over the hull-deck joint on the outside? Is it just a cosmetic issue, or is there some other reason?
There's a flexible rub strip that normally goes over the top sandwiching and sealing the joint..
I cannot be sure but it may be to allow for differential thermal expansion between the deck moulding and the hull moulding.... Whilst limiting the amount of fairing and finishing and that it may be a gel coat finish hull from the mould.
Going to need a few more cases of caulk .........
That's what she said! 😉
I have a CMS Poseidon 5 axis cnc machine that I use to cut tooling board day in and day out, but I am in southern California.
Why not just put a water sensor at the bottom of the keel? The inspection port should only be used on the hard. The last thing you want to confirm is a leak when you’re in the water, because you’ll lose the air pocket keeping the water out
Just sealant? Isn’t the deck hull joint also a structural part? I wouldn’t like the deck to separate from the hull during a storm.
Wondering if you considered Thixo for the hull/deck joint ?
When clients would ask if I could stop leaks on their deck, I always replied “can’t guarantee that but I can certainly move them“. 😂
Maybe check with a local trade school or university if a CNC machine is available for use
Wish the videos were a little longer,only cause I love you guys
you are amazing i love the project! can someone explain to me why he doesnt glass it over on the outside to seal the joint?
Mads is the king of segways he is usually halfway thru the ad before I realize it's an ad. Keep up the fantastic work.
With your 3D scanner, and the fact Eva travels for work, I was wondering if you might be able to create a stand in for the times she is gone. The script would write itself.
The little bakers scaffold needs some cross pieces.
I was just thinking about you🎉
Mads: I need some time to think about a problem.
Most People: Stop and have a coffee.
Mads: Build something functional and useful WHILE thinking about his problem!
What foam is that in the ring?
maybe you could fill the keels with epoxy foam?
Wow you really like fixing things 😂
Mads.......Lord of the rings.
Captain Dumdum needs a hat, so we can recognized him!
Mads feels like my Sundays are complete again with oh glorious boat diy love it
You could put ping-pong balls in the keels... BUt I expect the rattling would be crazy making.
Any good reason why sealant would be used in the deck joint and not thickened epoxy?
No mo Mo mo😂
IYKYK 😉
Hey Mads, nice series. I go way back with you and I was wondering... Years ago I recall that you were heading to the USA so Ava could work on her doctorate there. Is that still on the table?
20 years of boat repairs, 1 year of sailing
Worth every dollar you have spent - eh?