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Ferrocement Dinghy

Home Forums Research Engineering Ferrocement Dinghy

This topic contains 81 replies, has 13 voices, and was last updated by Profile photo of shredder7753 shredder7753 3 years, 2 months ago.

Viewing 15 posts - 16 through 30 (of 82 total)
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  • #13303
    Profile photo of shredder7753
    shredder7753
    Participant

    spru – when patri said to build an aquarium sized model, im pretty sure he meant an aquarium sized model of the actual design you plan to scale out. are you collecting data for a platestead design?

    either way, dude, as long as ur havin a good ole’ time – we’re there with u in spirit. bottoms up! (ur glass not ur boat)

    ____________

    My work

    “Leadership and do-ership are not the same thing”

    #13306
    Profile photo of elspru
    elspru
    Participant

    shredder7753 wrote:

    spru – when patri said to build an aquarium sized model, im pretty sure he meant an aquarium sized model of the actual design you plan to scale out. are you collecting data for a platestead design?

    yep, so far in a several months of operation have had to fix two leaks,

    one of which may have been from a boring worm nesting in the hull.

    either way, dude, as long as ur havin a good ole’ time – we’re there with u in spirit. bottoms up! (ur glass not ur boat)

    I toke, much like Paul the gray alien lol.

    but ya, I’m considering making my dinghy unsinkable,

    If I put the floats at the bottom,

    then if it leaks and isn’t repaired by the time it fills up,

    it’ll flip over an dump the contents,

    that way will stay afloat, and the hole could be worked on.

    as for repairing from the inside,

    am thinking that perhaps a large plastic sheet could be used as a temporary seal,

    and then once the water is pumped or bailed out, can apply some concrete to the area.

    calm aware desire choice love express intuit move

    #13307
    Profile photo of elspru
    elspru
    Participant

    OCEANOPOLIS wrote:

    to the oar(s) from the other thread. I wasn’t trying to tell you what to do, Spru,…. just trying to save you some time since you can buy good oars really cheaply on craigslist or at the local chandlery.

    the only paddle I could find in my area costs $30 dollars,

    consider that I already have all the materials to make a ferrocement oar so technicially it’s free.

    Also it’ll be good practice to apply concrete to galvinized mesh on a smaller project like an oar, so could work out the kinks before doing the boat.

    btw, does anyone know how long my rebar can stand around outside? it’s already starting to rust a bit.

    calm aware desire choice love express intuit move

    #13310
    Profile photo of shredder7753
    shredder7753
    Participant

    – somebodies mad at life today?

    ____________

    My work

    “Leadership and do-ership are not the same thing”

    #13309
    Profile photo of OCEANOPOLIS
    OCEANOPOLIS
    Participant

    you are building this dinghy for yourself and for yourself only, and only to prove yourself that you can do it. Obviously, you are not building this dinghy in order to use it to much or sell it for a profit or to improve the “dinghy” concept in general. This dinghy is not about the dinghy at all but only about your ego.That is why you think in terms of “free” vs. $30 for some used oars. “Free” is what people are looking for when no practicality is involved. If practicality would have been involved, “free” wouldn’t have cut it.

    Obviously, you have never rowed for a second in your life and obviously you will never have to use this dinghy to commute 500 yards to your anchored boat 4 times a day or more. If you would have ever done so you you would have had wooden or plastic oars an outboard engine on the transom. And by the way, USD, CAN, EUROS and all the rest of this bull shit valuless toilet paper that we call “money”, are ALL “petrodollars”….You have no choice but to consume oil. Unless of course you plan on not eating. You are going to pay for it. Seasteads are going to pay for it.There is not a single aspect of modern life that does not include oil in some way, shape or form.

    Since it’s about your ego, do as you wish. Why ask questions, meaning that you don’t know about a process, method or product, and when you get answers you reply that you are going to do it your way as if you would have known that from the begining,…Just do it your way without asking questions and learn your own lessons the hard way by trail and error. For some, it’s the only way to really learn.

    #13311
    Profile photo of elspru
    elspru
    Participant

    OCEANOPOLIS wrote:

    you are building this dinghy for yourself and for yourself only,

    well actually it should be able to carry at least two passengers at a time.

    and only to prove yourself that you can do it.

    That is certainly a major part of it.

    Obviously, you are not building this dinghy in order to use it to much

    actually I’m planning on using it to get to the sailboat seastead.

    before then probably will paddle it around the pond nearby,

    maybe also take it down to the lake and sail around.

    or sell it for a profit

    unlikely at the moment, maybe once we’re afloat, and make a new one, can sell the old one if need be.

    or to improve the “dinghy” concept in general.

    actually it’s a golden phi dinghy, I’m not aware of any golden phi dinghies having been intentionally made before now.

    also there is some innovation in terms of the attachment bolts which might get used for mounting keel, or other accessories.

    This dinghy is not about the dinghy at all but only about your ego.

    I’m not really sure what you mean by that.

    Freud said ego was the Reasoning part of the brain.

    so I guess I have reasoned together this design, with math and all that..

    wikipedia wrote:

    it seeks to please the id’s drive in realistic ways that will benefit in the long term rather than bringing grief

    http://en.wikipedia.org/wiki/Id,_ego_and_super-ego#Ego

    So I guess I’d have to agree with you, in order to satisfy my basic primal urges, i.e. reproduction. my ego is getting me to build boats,

    as once we can get abundant food and supplies for ourselves in an independant setting, likely my partner will be ready to procreate.

    That is why you think in terms of “free” vs. $30 for some used oars. “Free” is what people are looking for when no practicality is involved. If practicality would have been involved, “free” wouldn’t have cut it.

    free is freedom yo! ;-).

    money is a way of motivating people.

    Obviously, you have never rowed for a second in your life

    I’ve done lots of rowing in canoes and kayaks, when my family would go on camping trips, they used me as the main muscle, while my mom and lil bro just chilled, and my dad set the direction of the boat.

    and obviously you will never have to use this dinghy to commute 500 yards to your anchored boat 4 times a day or more.

    that depends on how far the boat is, and how many land trips we need to make that day..

    If you would have ever done so you you would have had wooden or plastic oars an outboard engine on the transom.

    If the ferro-oar really don’t work, can always get another one later.

    but personally I’d much prefer to sail those same 500 meters.

    forgive my reluctance at accepting new technologies,

    but having a backlog of past-lives and history makes me skeptical of recent hype.

    for thousands of years we did just fine with wooden boats, oars and sails.

    Ellmer and the seateading community convinced me to go ferrocement.

    Also of course clearcutting is a major issue, so ferrocement is more sustainable.

    And by the way, USD, CAN, EUROS and all the rest of this bull shit valuless toilet paper that we call “money”, are ALL “petrodollars”….

    Actually I’d have to say the top three “petrodollars” or dollars that are backed by petro are USD, Russian Ruble, and Chinese Yuen.

    USA is fighting major wars for control of middle eastern oil supplies, Russia tapped into subteranean oceans of oil, and China is getting oil via various third-world nations that it’s “helping” via infrastructure.

    CAN is backed mainly by primary industry, lumber, wheat, minerals, and Euro is backed mainly by secondary industry, manufacturing, technology.

    You have no choice but to consume oil.

    I like sunflower oil :-) mmm yum. also nuts and seeds are a rich source of essential oils.

    Unless of course you plan on not eating. You are going to pay for it. Seasteads are going to pay for it.

    Ominous… so is the USA military gonna force feed people oil? and then rob them of money they don’t have? ….

    Did you know, that for the price of 2 car tank fulls of gasoline, you can buy enough materials to make a ferrocement dinghy?

    You’re thinking of using gasoline, cause you’ve got more money than you know what to do with…

    There is not a single aspect of modern life that does not include oil in some way, shape or form.

    it is the “age of oil”. much like there was the stone age, bronze age, iron age, and so on…

    Like I said, I think plastic clothing and things can be quite useful and are renewable.

    Since it’s about your ego, do as you wish.

    sure :-)

    Why ask question, meaning that you don’t know about a process, method or product,

    and when you get answers you reply that you are going to do it your way as if you would have known that from the begining,…

    I’ve made plent of revisions and learned many things from the forums already.

    For instance Frusha said I could just bind together the rebar with wire which is what I did.

    I can’t try all the things that are suggested, as I have limited resources.

    So I mix and match and make do with what it is that I have available.

    If there is a certain combination you’d like to see attempted, feel free to do it.

    Just do it your way without asking questions and learn your own lessons the hard way by trail and error. For some, it’s the only way to really learn.

    well I’ve already saved a lot of money and effort thanks to the helpful advices from the forum members :-).

    Also I hope that my various boat building tutorials will be of use for future seasteaders.

    calm aware desire choice love express intuit move

    #13312
    Profile photo of elspru
    elspru
    Participant

    wohl1917 wrote:

    What Spru IS proving is that the first step in an around the world trip begins with the first step. He’s doing it. And it’s a more than some of us have done.

    thanks :-).

    Though I’d stay this is much later than the first step.

    First step in ferroboating world was making ferrocement model that floated.

    though perhaps you might call those zeroth steps *shrugs*.

    I’d more likely call the zeroth-steps the planning phase.

    I’ve bought a boat: a MacGregor 26D. I’m still outfitting her in preparation for the shakedown cruise but I have plans…

    is it ferrocement?

    or what was your thinking/motivation?

    calm aware desire choice love express intuit move

    #13313
    Profile photo of
    Anonymous

    Well this discussion has gotten interesting. lol.

    @ Elspru -

    You talk about sailing, are you going to make this dingy capable of sailing? A bracket into the keel for a mast? A way to add balast?

    Personally I would keep to the straight transom as well, you could get a little electric trolling motor. Get a small solar pannel or little wind generator to recharge the battery.

    How long before you’ll start plastering on the cement?

    #13314
    Profile photo of elspru
    elspru
    Participant

    R wrote:

    Well this discussion has gotten interesting. lol.

    @ Elspru -

    You talk about sailing, are you going to make this dingy capable of sailing?

    yes.

    A bracket into the keel for a mast?

    what do you mean by bracket?

    was thinking of using some dead tree trunk for mast.

    there are the bolts or rebar parts I was talking about for attaching it.

    A way to add balast?

    it’s a fairly deep hull so can have internal ballast,

    since the boat already weighs as much as a person and is rather wide, might not even need ballast,

    though can also use a steel centerboard or other heavy bottom fin.

    Personally I would keep to the straight transom as well, you could get a little electric trolling motor. Get a small solar pannel or little wind generator to recharge the battery.

    If I can I will.

    I straightened it somewhat today,

    perhaps with a few more seizing knots and it’ll be sufficiently striaght.

    How long before you’ll start plastering on the cement?

    If I get bolt cutters that can actually cut through rebar tommorrow,

    then attach the bolts and cover with mesh wednesday,

    hopefully can start plastering thursday.

    was a rainstorm saturday, filled the river up all the way.

    got the mesh out of the river today, it’s now dull enough, though a bit dirty *shrugs*, I’m glad it’s okay.

    tried applying it to the frame to see how it would fit, the bolts I’m sure will help it keep it’s place.

    and make applying the mesh somewhat easier.

    calm aware desire choice love express intuit move

    #13316
    Profile photo of wohl1917
    wohl1917
    Participant

    What you’re doing is called ‘re-inventing the wheel’. Now, that’s fine and it helps sometimes in the practical learning process. I have to do that from time to time just to learn things inside and out but usually its not necessary. My boat is not ferrocement: it’s fiberglass which is almost as permanent. In fact my research has indicated that steel reinforced concrete may NOT be the way to go. As for her make and model for seasteading purposes, she may not be Mrs Right but she certainly is Miss Rightnow! She’s small but big enough for me.

    < http://ocr.wikia.com/wiki/Oceanic_Citizens_Republic_Wiki>

    Profile photo of shredder7753
    shredder7753
    Participant

    have we thought about how to move it after the concrete is applied?

    ____________

    My work

    “Leadership and do-ership are not the same thing”

    #13320
    Profile photo of elspru
    elspru
    Participant

    wohl1917 wrote:

    What you’re doing is called ‘re-inventing the wheel’.

    Er what I’m doing is creating a dinghy or small boat… lol

    No wheels are involved. except maybe if it gets trailered or something.

    Yes, I do agree there is a certain “inventing” involved, in terms of I’m using golden-ratio’s,

    which somehow has strangely not been applied in the boating world before, hence lack of golden-ratio proprotioned craft.

    Now, that’s fine and it helps sometimes in the practical learning process. I have to do that from time to time just to learn things inside and out but usually its not necessary.

    well in my case it is, as what I want simply isn’t available unless I create it myself.

    socialist-education and wage-slave environments breed high levels of neophobia into people “if the authority didn’t do it, then it’s impossible!”.

    however due to having been an outcast I was unaware of these inhibitions.

    personally I much prefer to have perfect things,

    and golden-ratio is the best way of achieving a perfect boat design.

    though yes, considering I am boat-building,

    it is necessary to start small and work your way up,

    that way can learn the small lessons cheapely.

    My boat is not ferrocement: it’s fiberglass which is almost as permanent.

    really? I heard it starts falling apart after 30 years.

    heard lots of complaints about that buying old fiberglass boats is bad since they form leaks easily, and spend more on repairs then on cruising.

    something I read on some ferroboat website, was that when boat bends glass-fibers break, and after some decades many have broken.

    In fact my research has indicated that steel reinforced concrete may NOT be the way to go.

    care to explain?

    As for her make and model for seasteading purposes, she may not be Mrs Right but she certainly is Miss Rightnow! She’s small but big enough for me.

    < http://ocr.wikia.com/wiki/Oceanic_Citizens_Republic_Wiki>

    If it gets you seasteading, it’s good enough. :-)

    shredder7753 wrote:

    have we thought about how to move it after the concrete is applied?

    Ya, it’ll likely weigh around 70-80kg, I’m gonna get my girlfriend to help carry it over to the pond.

    I actually have at least about 30kg of cement left so it should suffice,

    I was unable to attain more today as home-depot decided to stop stocking St.Mary’s portland cement :-|,

    maybe they didn’t like St.Mary’s was an Illuminati brand, but seriously it is good cement.

    and their new provider sakrete, while sounding almost like seacreate has 0 marine cements.

    anyways, so hopefully the amount I have now will still suffice to finish the dinghy.

    calm aware desire choice love express intuit move

    #13321
    Profile photo of elspru
    elspru
    Participant

    here some photos

    yesterday I made the stern straighter with seizing

    here is cross bound bow for comparison.

    today covered ferro frame in mesh.

    it can already hold contents quite well :-)

    I started cording together the mesh mainly finished part of the keel for now.

    i’ll have to finish wiring it together before plastering, so may delay plastering until it’s done.

    calm aware desire choice love express intuit move

    #13326
    Profile photo of elspru
    elspru
    Participant

    wired the keel, beams, and gunwales today,

    looks much neater, will do the diagonals next time.

    I figured out a way of bending the wire so it comes back through the dinghy,

    so I could do all the wiring while remaining in the boat, where it is quite comfortable.

    to crimp together the chicken wire, and make it overlay more space, used half turn twists on the double wire portions.

    calm aware desire choice love express intuit move

    #13328
    Profile photo of shredder7753
    shredder7753
    Participant

    like

    ____________

    My work

    “Leadership and do-ership are not the same thing”

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