This Thing is an OpenSCAD file that uses its customizer feature to create centering rings used in complex model and high-power rocketry designs. It will produce either .stl files for printing, or .dxf files for laser cutting or CNC routing.

• Features:

  • Selectable outer diameter from dropdown box of standard tube sizes, or specify exact diameter.
  • Adjustable ring thickness.
  • Up to eight 'rings' of motor tubes or mounting holes, diameters selected from dropdown boxes of standard tube sizes, or specify exact diameters.
    • Selectable number of tubes in each ring.
    • Adjustable center offset and rotation for each ring.
    • Optional center cross-hair for each tube cutout.
  • Up to three 'rings' of fin slots.
    • Selectable number of slots in each ring.
    • Adjustable width and depth of each slot ring.
    • Adjustable rotation of each slot ring.
  • The position of each feature is printed in the console window in polar and cartesian coordinates. (The console window is turned on/off in the [View] menu.)

• This OpenSCAD file must use the OpenSCAD Customizer. See the instructions for Customizer use below.

• See my other rocketry Customizer Things at: http://www.thingiverse.com/thing:3104666 http://www.thingiverse.com/thing:2954100 http://www.thingiverse.com/thing:3133682