cylinder.groovy

CSG simpleSyntax =new Cylinder(10,10,40,(int)30).toCSG() // a one line Cylinder

//create a Cylinder
height = 22.5
CSG wheel_body = new Cylinder(33, // Radius at the bottom
                      		33, // Radius at the top
                      		17.6, // Height
                      		(int)30 //resolution
                      		).toCSG().movez(height/2 - 17.6/2)
CSG hub = new Cylinder(14.3, // Radius at the bottom
                       14.3, // Radius at the top
                       height, // Height
                       (int)30 //resolution
                       ).toCSG()
                       
bearing_height = 2.5

CSG slot = new Cylinder(11.2, // Radius at the bottom
                       11.2, // Radius at the top
                       bearing_height, // Height
                       (int)30 //resolution
                       ).toCSG()

//CSG  slot = new Cyliner(11.2,11.2,bearing_height,(int)30).CSG()
CSG slotted = hub.difference(slot)
slotted = slotted.difference(slot.movez(height-bearing_height))

                        		
  //create a Cylinder

CSG wheel = wheel_body.union(slotted)

 return [wheel ]