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Showing results for tags 'sail'.
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Just joined the forum as I feel that after practising virtual ship building for decades things appear to be maturing. I did start with real modelling as computers where not available when I was young though. I guess I was quite an early adopter with drawing ships (1:1) in 3D back in the late eighties. Initially starting with AutoCAD (when Bézier Curve algorithms where introduced) then switching to 3D modeling applications (for their Catmull-Clark subdivision surfaces) & then back to CAD (when NURBS and better meshing algorithms where introduced). In recent years, NURBS based CAD applications have also started to implement Subdivision modelling algorithms so you can do both the accurate & artistic stuff in one application. Since I was early I got the opportunity to explore many of the various application options that drawing in 3D offers over the past decades. Re-engineering, design visualisation, simulation, construction, 3D printing, etc, etc. However, just like in the real world, the construction of watercraft much depends on building materials / toolset restrictions & the same applies to digitally drawing watercraft in 3D. These days I am getting the feeling that the toolsets most CAD application offer have become extensive enough to pretty much derive the many different possible end products from one accurate 3D drawing dataset. Since I have an operational background in commercial shipping (Merchant Mariner) & the pressure on the shipping industry to reduce it's carbon footprint is growing, I recently have been researching the period where the shipping industry changed from wind to fossil fuel energy. Obviously, during this period wind powered design lost it's monopoly and was forced to improve it's efficiency while fossil fuel powered design was still suffering from not being very efficient leading to interesting design solutions. I attached some visualisations of a reconstruction in 3D based on blueprints by a shipyard in the Basque Country dating back to 1919. It's a 24.5 meter long fishing vessel fitted with a 50 ihp steam engine that takes up around a third of the space below deck while still carrying some sail. The drawings are from a large collection gathered over 3 generations by a Basque ship building family and going through this collection it once again becomes quite apparent that copying was rife in the ship building industry in previous centuries. The design is clearly based on British Steam Trawlers from that period and it turned out that the elegant looking very long stern overhang didn't work out that well on the Spanish Atlantic Coast. Entering port often required getting over a river bar with sometimes large breaking surf, leading to a few of these elegant stern sections completely breaking off. Visualised is a solid version of the 3D dataset that for example allows for low & high polygon export to 3D modeling applications like Blender for texture mapping, visualisation, animation & STL export for 3D printing applications. Obviously, perfect 2D plans are also easily derived from this 3D dataset. Still busy trying to find more photographic material for the details because there's little detail in the blueprints & since photography was still limited a hundred years ago some creative effort might be required.
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Hi - My husband and I are trying to figure out how to attach this sail to the mast. My father built this sailboat a long time ago and my stepmother gifted it to us after he passed. We had it on display until a gust of wind came through the house and knocked it over, breaking the boom. We took the sail off to get the boom repaired. Unfortunately, that was about 10 years ago. Now that we have repaired the boom, we can't figure out how to re-attach it. I'm attaching photos and really hoping someone here can help us. My stepmother is visiting next week so we would like to have it back together by then. Thanks for your help - Kathy
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Good morning world I am feeling exceptionally chipper this fine Sunday morning having spent two days attending the sail-making seminar held in historical Niagara on the Lake (a 34 minute drive for me). What a fantastically wonderful experience! I am relatively new to all this and felt I should mention the comradery you feel from the help you get on this site DOES actually extend to real life meetings. Of course my sorrowful looking first attempt at a sail is nothing to brag about but I have never learnt so much about 17th century sails (and other off menu ship building tidbits) that I just had to post a review. I am actually thinking of framing and hanging my first miserable sail in my workshop as a reminder of the experience. Just felt I had to share this feeling I am having. David Antscherl is a wonderfully knowledgeable and patient instructor. Unfortunately Greg Herbert could not be there; I was so looking forward to meeting the gentleman. I said it before and I'll say it again (and again, and again ....) what a wonderful site and fantastic group. Thank you. Alan
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