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Showing results for tags 'CAD'.
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After finishing the Cutty Sark, I tought I should build something easier and modern. Since there aren't any large scale cargo ships I tought it would be a great opportunity to polish my CAD knowledge (I already have several hundred hours with designing train models, but never done a ship), so decided on scratchbuilding with CAD and 3D printing. On http://freeshipplans.com/ (tons of plans, usually high quality scans) I stumbled upon the plans of Bydgoszcz. It is perfect, has nice lines, high resolution scans, and the ship is simple (no bulbous bow for example). Also I have a sweetspot for polish vehicles. The Bydgoszcz was a Type B-55 general cargo ship built in 1960 for the PLO (Polskie Linie Oceaniczne) and was in use until 1983 I started the modeling with drawing the lines for the ribs, deck and keel, then lofting them together to create the hull. Sadly the loft feature of the Inventor is bit of a mess, and I couldn't add any more lines without an error message, so the hull isn't perfect (for the next model I will probably use Delftship, if I make myself to buy it). Also the keel extension around the propeller and rudder had to be modeled manually, because you cannot loft backwards. I will need a quite a bit of filling to correct the hull (after spending around 20 hours just to loft the hull without errors, I just got fed up with it...) The modeling of the remaining parts went smoothly. First I modeled the remaining parts by making the rough outlines, then adding the details later. Firstly I made the superstructure Then I continued with the cranes and loading openings (not sure if its the correct term) Finally I added the details, like windows, rescue boats, anchor windlass, crane winches, etc... Some smaller details (stairs, doors, ladders, railings, ...) will be made from photo-etched parts. They are designed by me, but not placed in the assembly CAD-model, because mostly they need to be bent and cut to the desired shape and size by hand. This also applies for the rigging. I also designed a stand for it, and with that I marked the ship model as completed, and made a few renders in Blender just for good measure: Bydgoszcz_modell_bemutato.mp4 Now the parts are being made in my 3D printers (due to the size the hull and superstructure is made with FDM from PLA, but the smaller detailed parts are with DLP printer from resin), they will be ready in a few days. Feel free to ask about the CAD process or the 3D printing, because a lot of things are self evident for me, but not for others, who are maybe not as familiar with these as I am
- 20 replies
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- cargo ship
- CAD
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Admiralty Models has been working with a very talented 3D computer modeler who is building us a Swan class ship model (Pegasus). Besides the exceptional quality of his work, I can see the enormous benefit of a 3D model in showing how all the various pieces fit together. As the model's construction closely follows the actual vessel, it's build may be viewed in sequential layers. Our builder is precisely following the four volume Fully Framed Ship Model series of books, bringing David Antscherl's seminal work to life. In the near future, we will be offering the fully framed and fitted out computer model to those in the process of building a Swan class model or are contemplating building one. Between the Swan books and computer images I believe we will have the most comprehensive instructions and photos available for building a fully framed ship model. Stay tuned!
- 104 replies
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- pof swan series
- swan
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Hello, This is my 3D build log for HMS Pandora. The build was started in February 2011, and it is still in progress. The primary references include the Anatomy of the Ship: The 24-gun Frigate Pandora (the plans), The Shipbuilder's Repository (it contains the dimensions and the scantlings of HMS Porcupine, which is of the same class as the Pandora), and the “Swan” Series. Many other books and online resources are also referred to. I began with drafting a 2D drawing of the ship, and then I imported different parts of the 2D drawing into Solidworks to guide the 3D building process. In the following posts I will post the screenshots I captured during the build and briefly describe what is new in each figure. Jingyang
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I'm a complete CAD nerd. That is to say, I know my way around software - I should as a programmer (it seems) - but CAD is new to me. I've been looking for programs - preferably free, yes I'm Dutch - which could be used by a layman. So far I've tried DELFTship, and autoCAD. DELFTship is cumbersome, and unfortunately autoCAD is rather expensive for what it will be used. Today I found another program: Draftsight. It's free, 2D and 3D, uses DXF files, runs on Windows/Linux/MAC. So I'll try this one, and have a look at the - hopefully not to complicated - engine under the hood. (Download: http://www.3ds.com/products/draftsight/download-draftsight/)
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Hello All, I've recently downloaded the latest version of Sketchup and intend to start working on some plans. I apologize if some of my questions have been covered elsewhere or if it becomes immediately obvious that my ambitions far exceed my potential skill, but here goes. First, is there a way to import a scanned (jpeg or other type of image file) of a plan into Sketchup to begin adding lines, etc.? Also, is there anyone here that is using Sketchup for a 2D set of plans to develop framing and working drawings for a ship model? I've seen quite a few 3D discussions, but someone's step-by-step approach - sort of a "Ship Model Plans In Sketchup For Dummies" - with me being the dummy, would be hugely helpful. Many Thanks, Bill Abbott www.abbottcartoons.com
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I recently learned about a browser based 3D CAD program which is able to run on Windows and Mac platforms as well as mobile devices. https://www.onshape.com/ This program offers a free version and a paid version. So I signed up for the free version and quickyly learned that my 10 yr old 64bit computer's Radeon graphics card does not support webGL which is required to run this program on your web browser, tablet or phone. Also, your browser must also support webGL and most modern web browsers like Firefox and Chrome support this feature but some browsers disable this feature because of performance issues. I learned too that some graphics cards are supported and some are not. The program from what I can tell is in a Beta production status. Despite all these various requirements it look's like a vary robust 3D CAD program. Here is a link about webGL https://www.khronos.org/webgl/
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I've been playing with the free version of DelftShip (www.delftship.net) for creating hull designs. I've done quite a few designs by hand but I've never been able to see how I could create a faired hull with 2D CAD: it would be too cumbersome. As an test, I created a model of a 30 m "frigate". Although I didn't use all the tools for fairing the lines, it only took my about three hours to create this design. I found the tools for pushing and pulling the hull into shape reasonable intuitive. I've attached some of the output files: Lines drawing Table of waterline offsets (program can also output a point-cloud file) Hydrostatic data Resistance data - it looks like the hull speed is about 9 knots. Perspective renderings The program can also use a table of offsets to create a model. I didn't add decks, wales or ports, but the program is capable of this. I did manage to add the keel, masts and a bowsprit, however. I'm not sure the ship modeller will find this too useful, but there is an interesting feature for laying out the panels of the develop-able surfaces for chine boats. Those who research hull design, especially how it affects speed, cargo and armament capacity, and perhaps seaworthiness, could find it useful. I wonder how Chapelle's "Search for Speed Under Sail" would have benefited from being able to quickly do resistance analyses. If anyone wants the Delftship project file, please contact me: this forum won't all me to attach it. FrigateResistance.pdf FrigateHydroStatics2.pdf FrigateHydroStatics.pdf FrigatePerspective1.pdf FrigatePerspective2.pdf FrigateOffsets.txt FrigateLines.pdf
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I had created the attached as a guide to interpret the Zebra View of my Hull and offer it here for others ( hoping it has some value as I have yet to "get it" .....but haven't given up yet!) I include a Zebra View image of my hull. if anyone understands Zebra View and can offer some insight it would be greatly appreciated. Alan TRYING TO MAKING SENSE OF THE ZEBRA VIEW IN SOLIDWORKS.pdf
- 9 replies
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- CAD
- SolidWorks
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Hi. I am just getting into CAD modeling and I have Solidworks ver 2005. I am learning the very basics at the moment. Not easy at when your over 60. The purpose of learning this is I want to do a very detailed cross section of the Victory. My question is... Is there anyone else out there using Solidworks ?? I have found a few very good Utube starter videos. Any advice apart from telling me to change software is welcome (as I already own Solidworks the cost will kill the project). Many thanks Antony.
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