Step 2: Build a Flat Table

If you don't have a flat table to build on, it is very hard to build the part you want without warping it. If you don't have one, build one.. It saves loads of time.

To make your table flat, build it with many legs. Then use a tight string to define 'flat', and shim the legs until the tabletop matches the string. I neglected to flatten my table, and now my boat has a downward kink in the rear.
Hey ive been trying to find some decent cross sections to cut the foam with =, but as of yet have had no luck. do you know some place i can download them for free/ could you email me scans of the ones you used?<br>thanks
<p>Hi,</p><p>Did anyone ever share with you any sites with free rowing scull designs?</p><p>Thank you!</p>
'fraid not.
Fantastic job. So a few years in, how has the boat faired? I am very interested in building one following your instructions. 3 questions, 1-any idea of overall weight , 2 - any construction mods from long term use - 3 any idea where the pattern for the plywood jigs could be found?? Cant really do anything without pattern. Thanks
LOL, this is my main problem. Right now I am trying to force myself to finish at least a half a dozen boats before starting another. <br> <br>BobLQ <br> <br>
Examples of multiple projects needing to be finished <br>http://tinyurl.com/WhimsySkiff
where did you get the pink insulation foam boards and carbon , fiberglass and did you a template and if yes were from ????
How long are single scull shells normally. I'm talking about one someone would practice on.
Where do I get the designs for the bulk heads, outriggers, etc?
Great project! Did you consider using the same process to make a pair of foam molds to lay the fiberglass INTO, instead of a core to lay the fiberglass on? Then you would end up with a lighter, hollow shell (though you would probably need another layer or two of fiberglass to make up for the loss of the foam structure). OR, another option to reduce the weight: the core sections could be hollowed with the hot wire, leaving a ~1&quot; wall. Maybe it wouldn't make that much difference. How much does the finished boat weigh?
did you leave the foam in the boat or did you take it out and if you did take it out how did you do the ribbing to maintain the strength of the hull
no ribs. The strength is carried by the skin, and the foam core keeps the skin from buckling.
Would adding some honeycombing or fiberglassing in a gunnel possibly help with stiffness? I have heard that if your shell isn't stiff, you can lose a bit of power during the stroke. I think I recall seeing carbon fiber honeycomb in Hudson shells (could be cost prohibitive though).
stiffening the top is good too. Honeycomb is more about limiting buckling or out-of-plane deflection than making the hull stiffer, so is not a big contributor to stiffness when the core is already a big block of foam. carbon at the corners of the deck in addition to on the bottom is probably the best EI increase. Making a hollow boat is probably the biggest weight savings.
Can you post scans of the crosssections?
so what you want to do is sand the extra coat of epoxy, and not the fiberglass?
Might that be autobody filler to bring up the low spots? Great ible, brings me back to my days on my college crew team.
Looks great! How much does it weigh?<br>
Do you know any sites where you can get the designs for free?
Do you by any chance know of a good set of plans?
jeff <br> <br>I just bought the book Rowable Classics thru amazon. It strictly refers to wooden shells <br> <br>At the back of the book there are plans with cross sections of a nice shell with similar lines to this boat. <br> <br>you could probably enlarge them on a copier and come pretty close to this boat.
this is an AWESOME!! 'ible.. any chance you can tell me where to get the pink foam in Australia? Or what other brand names / chemical name it might be marketed under? I have checked at Clark Rubber with no success. Thankyou
The foam is extruded polystyrene foam insulation.<br><br>In general building suppliers are a good source if not DIY shops<br><br><p><br><br>BUT Be aware this foam melts when polystyrene resin is applied. You must use epoxy resins to avoid this.<br>,p&gt;<br>Possibly you might be able to protect the foam surface by painting or coating with paper and PVA but experimentation needed.</p>
Wow , very nice job . I don't even want to build a shell and I learned a lot , thanks so much . A heads up , fiber glassing is not real expensive and not that hard to do compared to building wooden boats . Make sure you wear hand protection and face masks or you will regret it the rest of your life . Wear the right stuff and it's not a problem .
Were can one purchase the foam blocks you guys used for the boat. Thanks And thanks so much for posting this!
It's housing insulation found in Home Depot and Lowes and most other lumber/home centers in the States . It comes 2&quot; thicknesses , 2ft x 4ft ? , Owens Corning .Probably other brands in other countries and areas .
This is great for a first instructable!
Im really interested in building a shell for offseason training......how long was your boat, and about how much did it cost you to make, also what were the other dimensions, thanks
I'm interested in this project, I just have a few questions. How much did the over-all build cost? Also, Is it built without a keel? That's one of the parts that I was curious about when considering building my own shell. Thanks and great job!
I am very new using this web site so maybe I am in the wrong location for this request. I have a couple of questions for the builder of this rowing shell and I would be much appriciated if they could be answered.<br /> <ol> <li>After the foam is sanded did the fiberglass resin go directly on to of the foam? My experiance is that resin will disolve the foam similar to the spray on glue aresol.</li> <li>How did you decide on the plywood temptate dimensions and were they 24 inches apart? Also were they left attached to the foam pieces and glasses over?</li> </ol> Thanks <br /> <br /> UPHRSN<br />
I don't think epoxy melts that Dow pink foam stuff.&nbsp; Perhaps you are thinking of Polyester resin?&nbsp;
The only problem that I&nbsp;can see with this is using the pink foam. It will delaminate if it is impacted. The fiberglass will pull from the foam and create and air pocket that will fill with water. You could instead go with boat building foam instead to avoid that.<br />
What's an estimate for the cost of this project?<br />
&nbsp;Have you considered a set of real sculling oars? You'd get away with smaller oarlocks. &nbsp;Boat looks unsinkable thanks to the foam remaining inside the hull. &nbsp;good for offshore sculling. &nbsp;Good project.
This is a great process. Where did you get the pattern for your jig pieces? I can't find anything like it on the internet and I want my boat to cut the water properly.
Hardcore. Take that Vespoli and your $8000 fussy shells! What city is that?
I love this plan. It is so interesting, and I learned a lot from reading through it. I want to build a boat too, partcularly, a skull. I don't know anything about so many things, like the hot wire for cutting (shaving) the styrofoam. I guess I'll have to do some research. Thanks!
Holy Cow. I cant believe you did this. Nice Work!
I was the random visitor on Sunday Sailing a few weeks ago when you brought out the rowing shell. That's the first time I've attempted to use one and although I was always on the edge of tipping over and going for a cold swim in the SF bay, it was great fun! Next time I need to put the wetsuit on before boarding the rowing shell so I won't be as worried about capsizing. Thanks for letting me use it and giving me vital tips like "never let go of the handles".
Looks good. Where's the first photo taken?
77 mass ave, cambridge MA, right in front of the entrance to MIT (can't you tell from the quantity of glasses?)
Haha should have known, right outside the architecture building. I live in Boston, the Peter Pan buses are pretty characteristic.
cool instructable, needs more detail, maybe add templates, measurements etc
That's amazing! It looks complicated; and expensive. +5/5 stars.

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