Subversion Repositories – MLAB

(root)//Designs/Measuring_instruments/AWS02A/CAD/src/rounded_screen/rounded_screen_cap.scad @ 4137

Rev 3894

r = 35;
h = 20.32;
thickness = 2;

shield_cap(r,h,thickness);

module shield_cap(r,h,thickness){
        difference(){
                top(r,h);
                translate([0,0,-thickness]){top(r-thickness,h-thickness);}
        }
        intersection(){
                union(){
                        difference(){
                                union(){
                                        translate([-thickness/2,thickness-r,0]){cube([thickness,2*r-thickness*2,h]);}
                                        translate([thickness-r,-thickness/2,0]){cube([2*r-thickness*2,thickness,h]);}
                                }
                                rotate([0,0,45]){cube([sqrt(2*pow(r/1.6,2))-thickness*2,sqrt(2*pow(r/1.6,2))-thickness*2,h*2],center=true);}
                        }
                        rotate([0,0,45]){
                                translate([0,0,h/2]){
                                        difference(){
                                                cube([sqrt(2*pow(r/1.6,2)),sqrt(2*pow(r/1.6,2)),h],center=true);
                                                cube([sqrt(2*pow(r/1.6,2))-thickness*2,sqrt(2*pow(r/1.6,2))-thickness*2,h*2],center=true);
                                        }
                                }
                        }
                }

                translate([0,0,-thickness]){top(r-thickness,h-thickness);}
        }
}

module top(r,h){
        difference(){
                intersection(){
                        translate([-r,-r,0]){cube([2*r,2*r,h]);}
                        cylinder(h=h, r=r,$fn=100);
                }
                translate([0,0,h/5]){
                        difference(){
                                translate([-r,-r,0]){cube([r*2,r*2,h+1]);}
                                resize([0,0,h*5/3]){sphere(r=r,$fn=100);}
                        }
                }
        }

}