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OUTSIDE_DIAMETER = 31.75;
OUTSIDE_RADIUS = (OUTSIDE_DIAMETER / 2);
TOLERANCE = 0.75;
REAL_OUTSIDE_RADIUS = OUTSIDE_RADIUS - (TOLERANCE / 2);
HEIGHT = 12;
DETAIL = 100;
WALL_THICKNESS = 2;
LIP_THICKNESS = 2;
LIP_HEIGHT = 1;
difference()
{
union()
{
cylinder(r = REAL_OUTSIDE_RADIUS, h = HEIGHT, $fn = DETAIL);
cylinder(r = REAL_OUTSIDE_RADIUS + LIP_THICKNESS, h = LIP_HEIGHT, $fn = DETAIL);
}
translate(v = [0, 0, -1])
cylinder(r = REAL_OUTSIDE_RADIUS - WALL_THICKNESS, h = HEIGHT + 2, $fn = DETAIL);
}
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