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  1. tjkopena

    CAD Software Polygon Interpolation in OpenSCAD

    Recently I did some work in OpenSCAD to interpolate polygons--- So that I could generate nosecones like this--- If that's of interest to anybody, the details & code are worked out here:
  2. M

    Fuel grain geometry

    Hey guys, I'm currently into building my own motors and was wondering if anyone else out there currently uses star grains? I currently use a bates grain configuration (basically multiple toilet paper roll shapes stacked together with a slight gap between each) but I end up taking a long time to...