I'm proud to announce that I just released finFoil version 0.4! The application to help the backyard fin builders foil there fins hydrodynamically.
With this release you can finally edit the vertical thickness profile using a single parameter in an exponential function. See the example below:
The file "exponentialProfiles.pdf" that you can find here: https://sourceforge.net/projects/finfoil/files/ , shows different profiles for differen constants. If you uncheck the "Use exponential thickness profile" checkbox, the quadratic profile of versions <=0.3 is used.
Version 0.4 can be installed in parallel with version 0.3, but feel free to uninstall v0.3 since all it's functionality is still included in v0.4 .
I hope you'll enjoy it,
The following text describes finFoil v0.3 (still valid for v0.4):
You can download the windows installer here: https://sourceforge.net/projects/finfoil/files/Windows%20Installer/
(It should run on every windows version newer than Windows 95)
As you can see in the screenshot, it is now possible to load in an SVG file, for easier editing of the fin! How to do this is described below.
How to use finFoil with an SVG file
- Install an SVG editor, for this tutorial Inkscape is used (free software)
- Download the example SVG file test.svg from:
- Open test.svg with inkscape
- Edit the fin using the path edit tool (red arrow). Use your mouse and the tools indicated by the green rectangles:
- Make sure the ID of the path is "fin", otherwise finFoil won't know which path to parse. Now you have only one path, but there could be several in an svg file.
(this should be OK in the test.svg file)
Right click the fin and select "Object Properties":
- Save the file and import it in the finfoil program:
How to trace a fin From an image
- Use the import function from inkscape to import an image:
- Browse for the image on your filesystem
- Choose to link the image. This way the SVG file will stay small, since only a link to the image is inserted. finFoil will also work with embed.
- Scale the image while pressing the Ctrl button. This way, the aspect ratio of the image will stay equal.
- The image will sit on top of the fin path, use "Lower to bottom" to send it to te bottom. And use the transformation tools if needed:
- Edit the fin to fit the image:
I hope you enjoy this release, and I hope to see people using this application to foil their plywood (or ...) fins.