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I have created a website that provides an app for converting measurements between different scales and units. https://scale.programtheweb.com/ You can convert in either direction. Supported units are Meters, Millimeters, Inches, English Feet/Inches, and French Pied/Pouces/Lignes. There are standard scales built in but you can also enter your own. The site is free and does not require any sign-up. The software has been tested on Chrome, Firefox, and Edge browsers. It will also work on Android Chrome and the iPhone browser (although testing on that last one has been limited; my youngest daughter doesn't like me stealing her phone!). Any suggestions for improvements or bug reports are welcome. Hopefully people will find it useful. Richard
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/)
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
Greetings, One of my clients sent me this most interesting links to a software product. Trying to figure out where the modelling industry is going is a little like herding cats. However, there is one thing that is certain and that is that more and more builders are becoming interested, and proficient, at using the best technology that can be found to make their models. This little piece of software seems to point in an interesting direction: http://www.modeltrainsoftware.com/model-builder.html One can imagine using such a tool to make decks, copper plating or some interior surfaces that are not easily seen once the model is completed. Regards, Rick