//Make the final object
difference(){
//create all the components
uncleanedSensorTower();
//trims away everything not in the circle
trim();
}


//creates a hollow cylinder. The hollow portion has a radius
//equal to the radius of the structure itself.
module trim(){

difference(){

cylinder(h=38.1, r = 100);
cylinder(h=38.1, r= 76.2);

}

//creates the inner structure with some bits hanging out.
}
module uncleanedSensorTower(){

//creates the 6 sensor holders and moves them to the correct
//spot
sensorHolder(52,90);
sensorHolder(52,-90);
sensorHolder(52,0);
sensorHolder(52,180);
sensorHolder(52,45);
sensorHolder(52,-135);
sensorHolder(52,-45);
sensorHolder(52,135);

//Creates the cylindrical frame and then cuts all necessaary
//holes out (for the sensor holders and wire holes).

difference(){
cylinder(h=38.1, r= 76.2);

translate([0,0,3]){
cylinder(r=73.2,h=38.1);
}

//These 4 cubes make the 8 sensor holder holes.
translate([-100,-25.5,17.1]){
cube([200,51,18]);
}

rotate(a=[0,0,90]){
translate([-100,-25.5,17.1]){
cube([200,51,18]);
}
}

rotate(a=[0,0,45]){
translate([-100,-25.5,17.1]){
cube([200,51,18]);
}
}

rotate(a=[0,0,-45]){
translate([-100,-25.5,17.1]){
cube([200,51,18]);
}
}

rotate([0,0,22.5]){
//these two cylinders makes the wire holes.
translate([-100,0,8]){
rotate([0,90,0]){
cylinder(h=200,r=2);
}
}

translate([0,-100,8]){
rotate([0,90,90]){
cylinder(h=200,r=2);
}
}
}

}



}


//makes the sensor holeder at the specified location and degree.
module sensorHolder(z,d){

rotate(a=[90,0,d]){
translate([0,17.1,z]){
//difference(){
holedSensorHolder();
//translate([-27.5,1.5,20]){
//cube(size = [55,18,3]);
//}
//}
}
}

}

//makes the sensor holder structure itself.
module uncleanSensorHolder(){

rotate([90,0,0]){
translate([14,1.5,0]){
cylinder(r=1.5,h=17.1);
}

translate([-14,1.5,0]){
cylinder(r=1.5,h=17.1);
}
}

//the back
translate([-14.5,0,0]){
cube(size = [29,18,3]);
}

//right side
translate([12,0,2]){
rotate(a=[0,30,0]){
cube(size=[3,18,24]);
}
}

//left side
translate([-14.5,0,0]){
rotate(a=[0,-30,0]){
cube(size=[3,18,24]);
}
}

//divider
cube(size=[1.5,18,25]);


//bottom
intersection(){
translate([0,10,0]){
cylinder(h=25,r1=15,r2=30);
}
translate([-27.5,0,0]){
cube(size=[55,1.5,25]);
}
}

}

//Adds the LEED holes
module holedSensorHolder(){
difference(){
uncleanSensorHolder();

//makes the two LED holes.
translate([-7,10,0]){
cylinder(h=50,r =.5);
}
translate([-4,10,0]){
cylinder(h=50,r =.5);
}

//makes the 3 receiver holes.
translate([5,3,0]){
cylinder(h=50,r =.5);
}

translate([7,3,0]){
cylinder(h=50,r =.5);
}

translate([9,3,0]){
cylinder(h=50,r =.5);
}

}
}