下载地址：https://github.com/ZhangGaoxing/openscad-models/tree/master/Sprinkle
代码：
module screw(r=){
for(g=[::]){
translate([cos(g)*r,sin(g)*r,(g)/])
rotate(a=[,,g])
cylinder(.,.,.,center=true,$fn=);
}
}
module cylinderWithScrew(){
union(){
// Cylinder shell
difference(){
cylinder(,16.5,16.5,$fn=);
cylinder(,15.5,15.5,$fn=);
}
// Screw
union(){
translate([,,])screw();
translate([,,])rotate([,,])screw();
translate([,,])rotate([,,])screw();
}
}
}
module sprinklerWall(){
difference(){
cylinder(,,16.5,$fn=);
cylinder(,33.5,15.5,$fn=);
rotate([,,])translate([,,])cylinder(,1.5,1.5,$fn=);
}
}
module sprinklerBottom(){
difference(){
cylinder(,,,$fn=);
cylinder(,,,$fn=);
for(i=[:0.2:0.8]){
rotate(i*/0.8,[,,])
translate([,,])
cylinder(,,,$fn=);
}
for(i=[:0.2:1.6]){
rotate(i*/1.6,[,,])
translate([,,])
cylinder(,,,$fn=);
}
for(i=[:0.2:2.4]){
rotate(i*/2.4,[,,])
translate([,,])
cylinder(,,,$fn=);
}
for(i=[:0.2:3.2]){
rotate(i*/3.2,[,,])
translate([,,])
cylinder(,,,$fn=);
}
for(i=[:0.2:]){
rotate(i*/,[,,])
translate([,,])
cylinder(,,,$fn=);
}
}
}
union(){
sprinklerBottom();
translate([,,])sprinklerWall();
translate([,,])cylinderWithScrew();
}效果图：