[OpenSCAD] flange

roland78 davidroland78 at gmail.com
Thu Oct 18 14:05:34 EDT 2018


Hi. I need help with this code for a flange-- looks like is empty inside( i
need to be full) and is not totally through the ellipse and holes. Or a
better code for such a flange? 

module make_ring_of (radius, count)
{
    for (a = [0: count -1])
    {
        angle = a * 360 /count;
        
        translate (radius * [sin(angle), -cos(angle), 0])
            rotate ([0, 0, angle])
                children ();
    }
}

Thank you.
module oval()
{
    scale([2.5,1,1])
        circle(10);
}

difference ()
{
  cylinder (h=8, r=50);//big flange
    {
      difference();
     cylinder (h=8, r=50);    
 $fn = 36;// how fine to be the ellipse 
        translate ([0, 0, 0]);
          {offset(r=0.15, h=10)oval();}
        
            make_ring_of (radius = 30, count = 4)// outside small holes and
how many
                cylinder (r = 4, h = 10, centre = true);// dimension of the
outside holes
        }
    }




--
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