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The origins of nautical drafting curves are most likely in the full-sized templates and molds used by the Romans to build the ribs for the ships in their naval fleet as early as 3rd century BCE. The same technique of 1:1 templates were used well into the 1700s, but as early as the 1600s, European ship builders started using scaled-down drawings and models.
And scaled-down drawings needed scaled-down templates and, over time, different sets of curves have been used in drafting, engineering, and design. While French curves are probably most common and well-known, naval architects, maritime designers, and boat builders used sets of Copenhagen Ship Curves.
However, sets of Copenhagen Ship Curves stopped being produced in the 70s/80s as computer-aided-design had become more widely available.
This project is about making nautical drafting tools available once again for shipbuilders, modelers, and maritime designers as these are still very helpful in model boat building and drafting/tracing of very early ship drawings, among others.
After purchasing several vintage sets from different manufacturers, all curves were scanned and compared against each other to determine what defined a full set of Copenhagen Curves.
High-resolution scans were taken of each piece from 4 different sets, as well as tracings and images from other sources. Pieces were matched and any differences identified.
Using a mixture of computational line tracing, manual adjustment and mathematical smoothing, curvatures were determined and defined as Bezier curves.
After shapes were verified against the originals using a cnc paper cutter, digital files were translated into g-code for production.
This project is about making nautical drafting tools available once again for shipbuilders, modelers, and maritime designers.