// Roda para robô
// Autor: Diógenes Rossi
// Licença: MIT

$fn=30;

module furo(){
 translate([-9,0,-8.5])
  cylinder(8.5,3,2.25,center=true);
 translate([-9,0,-0.8])
  cylinder(2.5,2.25,2.25,center=true);
 translate([-9,0,-8.5])
  cylinder(12,1.25,1.25,center=true);
}

//e=espessura
module roda(diametro, e)
{
 raio=diametro/2;
 difference(){
  difference(){
   union(){
    rotate(90,[1,0,0])
    difference(){
     cylinder(h=e*2,r=raio, center=true);
     cylinder(h=e*4,r=(raio*0.9),center=true);
    }
   
    for (j=[0:e*.9]){
     translate([0,-j,0])
     union(){ 
      for (i=[0:9]){
       rotate(i*36,[0,1,0])
        translate([0,0,raio/2.1])
         cylinder(raio,r1=e/2,r2=e/8,center=true);
      }
     }
    }
   }
   translate([0,e,0])
    rotate(90,[1,0,0])
     cylinder(h=e*2,r=raio*1.1, center=true);
  }
  rotate(90,[1,0,0])
  translate([9,0,9])
  furo();
 }
}

module rodas(r1, r2, distancia, e)
{
  roda(r1,e);
  translate([distancia-((r1+r2)/2),0,(r2-r1)/2]) 
    roda(r2,e);
}

module fourWheels()
{
  rodas(5,7,15);
  translate([0,6,0])
   rodas(5,7,15);
}

//fourWheels();
//furo();
 //rotate(90,[-1,0,0])
 //roda(50,7);


$fn=60;

module miolo()
{
  difference()
  {
    for (i=[0:11])
    {
      translate([sin(i*30),cos(i*30),0])
       rotate_extrude(convexity = 10)
        translate([1, 0, 0])
        circle(r = 0.1);
    }
    translate([0,0,-.15]) cylinder(h=0.2,r=2.5, center=true);
    translate([0,0, .15]) cylinder(h=0.2,r=2.5, center=true);
  }
}

module aro()
{
  //translate([0,0,-1.7]) scale([10,10,35]) miolo();
  translate([0,0,-3.5])
  rotate(90,[-1,0,0])
  roda(50,7);
  difference() 
  {
    cylinder(h=7,r=28, center=true);
    cylinder(h=9,r=20, center=true);  
    rotate_extrude(convexity = 10)
      translate([27.5, 0, 0])
        circle(r = 2.5);
    //translate([0, 0, 2.6])
    //cylinder(h=5,r=30, center=true);
  }
}

aro();