GregGleason
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- Nov 13, 2009
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One of the most elusive pursuits for me personally in rocketry has been the desire to create nice and symmetrical airfoiled fins.
One of the ways to do this is through a lot of math and then converting it into 3D geometry.
After coming up with a fin profile, I then created the fin geometry I wanted in Excel.
I exported the fin geometry into scripts that could be imported into 3D CAD (Rhino), and from the airfoil profiles created the surface of the fin. After joining the surfaces of the fin into a unified, closed polysurface, I subtracted that fin volume from a rectangular box that would represent the mold.
Below is the result of the above process.
I don't know how long this process will take, but I expect to learn some things along the way.
Greg
One of the ways to do this is through a lot of math and then converting it into 3D geometry.
After coming up with a fin profile, I then created the fin geometry I wanted in Excel.
I exported the fin geometry into scripts that could be imported into 3D CAD (Rhino), and from the airfoil profiles created the surface of the fin. After joining the surfaces of the fin into a unified, closed polysurface, I subtracted that fin volume from a rectangular box that would represent the mold.
Below is the result of the above process.
I don't know how long this process will take, but I expect to learn some things along the way.
Greg
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