A New Build Begins
Posted by Charlie43 on
URL: http://riverswest-forums.266.s1.nabble.com/A-New-Build-Begins-tp170.html
With a design completed, construction can begin, which should always begin by lofting the boat, which means using one's Table of Offsets to draw enough of the boat that full-sized that patterns can be created and angles pulled.
A "real" boat-shop would have proper lofting-room, which isn't a luxury available to the typical "backyard builder", nor a necessity. If one is planking with ply, rather than timbers, the as-yet uncut sheet goods make a good lofting-table if laid across the waist-high saw horses and 2x4's that are the foundation for the building frame.
For any boat, at least how the garboard strake intersects with the stem and transom in profile should be drawn, and --for a pram-- the sectional expansions for the bow and transom. Convenient to have, also, is the mid-frame bulkhead, which becomes the mold, which can be cobbled together from scraps more easily if one has its pattern rather than just numbers.
36" wide, shipping or wrapping paper, in brown or white, is cheap and is easy to make legible marks on. A 4' drywall square is useful for the Y-coordinates. A good eraser is helpful, because plenty of mis-markings will happen. A consistent set of rules by which one's hash marks are always made is a good thing to decide upon as well, so that mistakes can be more easily unraveled later.
My preference is to use the edge of the drywall square to draw the vertical ticks and the functional equivalent of a draftsman's triangle butted against its edge for the horizontals, so that all intersecting lines are crisp and more exact than can (typically) be done freehand. Such precision isn't really needed when marking paper. But good work habits make the layout on ply go faster and easier and reduce the effort to check fairness with battens.
I'm not sure how much of the building process I will document, given that this forum is mostly Rivers West's neglected step-child and that so few members "draw what they build, or build what they draw". So the photo record will be as it pleases me to provide. But if someone does have a question their own research efforts can't answer, feel free to post it.
Charlie
URL: http://riverswest-forums.266.s1.nabble.com/A-New-Build-Begins-tp170.html
With a design completed, construction can begin, which should always begin by lofting the boat, which means using one's Table of Offsets to draw enough of the boat that full-sized that patterns can be created and angles pulled.
A "real" boat-shop would have proper lofting-room, which isn't a luxury available to the typical "backyard builder", nor a necessity. If one is planking with ply, rather than timbers, the as-yet uncut sheet goods make a good lofting-table if laid across the waist-high saw horses and 2x4's that are the foundation for the building frame.
For any boat, at least how the garboard strake intersects with the stem and transom in profile should be drawn, and --for a pram-- the sectional expansions for the bow and transom. Convenient to have, also, is the mid-frame bulkhead, which becomes the mold, which can be cobbled together from scraps more easily if one has its pattern rather than just numbers.
36" wide, shipping or wrapping paper, in brown or white, is cheap and is easy to make legible marks on. A 4' drywall square is useful for the Y-coordinates. A good eraser is helpful, because plenty of mis-markings will happen. A consistent set of rules by which one's hash marks are always made is a good thing to decide upon as well, so that mistakes can be more easily unraveled later.
My preference is to use the edge of the drywall square to draw the vertical ticks and the functional equivalent of a draftsman's triangle butted against its edge for the horizontals, so that all intersecting lines are crisp and more exact than can (typically) be done freehand. Such precision isn't really needed when marking paper. But good work habits make the layout on ply go faster and easier and reduce the effort to check fairness with battens.
I'm not sure how much of the building process I will document, given that this forum is mostly Rivers West's neglected step-child and that so few members "draw what they build, or build what they draw". So the photo record will be as it pleases me to provide. But if someone does have a question their own research efforts can't answer, feel free to post it.
Charlie
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