Lavvu Rings

This is an stl file for a 3d printable ring to be used with a three-pole set up for a polish lavvu. you should take the advice to 3d print the ring then create a sand mold of three of these rings and pour molten aluminum into that mold to create three metal lavvu rings which can then be connected together either via a keyring ring or a simple nut and bolt (through smaller ring holes.