Origami HullThe Origami hull is a hull formed by folding steel into the shape of a hull. The hull plates are first butt welded to form a two large flat plates. Each of the two larger plates will be formed into one half of the hull from bow to stern. To form each side, darts are cut into the plate and the gaps pulled together, bending the plate into it's three dimensional shape. When both sides of the hull are completed they are brought together and welded down the keel.
Here is an example of an Origami Boat pattern for a single chine hull. You can download and print the large image of the pattern, then cut out the pieces and tape it together to see how the process works. See "Paul's 65ft Origami" for an example of how a large origami hull is built.
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This is our attempt to translate the paper plans into a CNC cut 1/8th scale model. ...it's close, but the plans need some refining.
Our 4th attempt. We dropped done from 20 gauge to thinner 24 gauge and a 1/12th scale model. Once we get the pattern closer then we will scale it back up.
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We decided it was time to move the steel inside the fence on up on cribbing where it will be easy to access from the building pad. We learned some lessons about moving big plates of steel along the way.
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We will have to flip each hull side over 6 times, welding a little more on each side every time in order to balance the weld contraction and limit the amount of distortion.
Yes, we can life a 5 ton piece of steel 18 feet into the air with two 3 ton manual chain hoist; but it's a lot of work and it took me 4 hours to complete. ...so we broke down and purchased two 3 ton electric winches.
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We love our electric winches. They are the best! Up and over in less than 20 minutes. But boy howdy, they don't give these puppies away.
theboat.smugmug.com/Boats/Kim -- Kim's 26' Swain photo
journal.
www.moonflowerofmoab.com -- A completed project with lots
of photos and documentation.
www.harderwoods.com/pipedocs.html Online Pipe Fitting
Templates