// Parameter
res=200; // Auflösung
da=160;  // Außendurchmesser
di=150;  // Innendurchmesser
a=3;     // Wanddicke
b=10;    // Fugenhöhe

//-------------------

$fn=res;
rad=da/2+6;
difference() {
   union() {
      // Außenring
      difference() {
         union() {
            translate([0,0,0]) cylinder(h=a+b+2, d=di+(da-di)/2+a/2);
            // Schräge außen
            difference() {
               translate([0,0,-2.05])rotate_extrude(angle=360)
               translate([(da+a)/2-3,0,0])rotate(45)square([5,5]);
               translate([0,0,-8.05]) cylinder(h=10, d=da+a+6);
            }
            //Flansche außen
            translate([0,0,2])linear_extrude(height = b+a, center = false, convexity = 10, twist = 0) {
               hull() {
                  for (i=[0:120:359]) {
                     translate([rad*cos(i),rad*sin(i),0])circle(d=12);
                  }
               }
            }
         }
         // Hohlraum
         translate([0,0,-0.1]) cylinder(h=b+2+0.1, d1=di+(da-di)/2-a/2+0.2,d2=di+(da-di)/2-a/2-3);
         // Flanschloch
         for (i=[0:120:359]) {
            translate([rad*cos(i),rad*sin(i),-0.1])cylinder(h=b+a+5+0.2, d=6);
         }
         // Kabelloch
         translate([(rad-1)*cos(180),(rad-1)*sin(180),7])rotate([0,90,0])cylinder(h=b+a+5+0.2, d=6); 
      }
      // Halter Laserplatine
      translate([-10,50,0]) cylinder(h=a+b,d=5);
      translate([+10,50,0]) cylinder(h=a+b,d=5);
      translate([-10,50,5]) cylinder(h=a+b-5,d1=5,d2=9);
      translate([+10,50,5]) cylinder(h=a+b-5,d1=5,d2=9);
      translate([-10,50,-0.7]) cylinder(h=a+b,d=3);
      translate([+10,50,-0.7]) cylinder(h=a+b,d=3);
      // Haltepolzen für Gedöns
      difference() {
         translate([-20,20,5])   cylinder(h=a+b-5,d1=5,d2=9);
         translate([-20,20,4.9]) cylinder(h=a+b-6.5,d=2.3);
      }
      difference() {
         translate([+20,20,5])   cylinder(h=a+b-5,d1=5,d2=9);
         translate([+20,20,4.9]) cylinder(h=a+b-6.5,d=2.3);
      }
      difference() {
         translate([-20,0,5])   cylinder(h=a+b-5,d1=5,d2=9);
         translate([-20,0,4.9]) cylinder(h=a+b-6.5,d=2.3);
      }
      difference() {
         translate([20,0,5])   cylinder(h=a+b-5,d1=5,d2=9);
         translate([20,0,4.9]) cylinder(h=a+b-6.5,d=2.3);
      }
      difference() {
         translate([-20,-20,5])   cylinder(h=a+b-5,d1=5,d2=9);
         translate([-20,-20,4.9]) cylinder(h=a+b-6.5,d=2.3);
      }
      difference() {
         translate([+20,-20,5])   cylinder(h=a+b-5,d1=5,d2=9);
         translate([+20,-20,4.9]) cylinder(h=a+b-6.5,d=2.3);
      }
   }
}