include <lib/BOSL2/std.scad>
include <lib/BOSL2/screws.scad>

Base_diameter = 30.0; // 0.1
Base_depth = 30.0; // 0.1
Screw_size = "M4";
Screw_length = 15.0; // 0.1
Head_style = "sphere"; // ["sphere", "stl"]
Sphere_diameter = 50.0; // 0.1
Sphere_offset = 40.0; // 0.1
Head_import = "";
Head_rotate_x = 0.0; // 0.1
Head_rotate_y = 0.0; // 0.1
Head_rotate_z = 0.0; // 0.1
Head_scale_x = 1.0; // 0.1
Head_scale_y = 1.0; // 0.1
Head_scale_z = 1.0; // 0.1
Head_translate_x = 0.0; // 0.1
Head_translate_y = 0.0; // 0.1
Head_translate_z = 0.0; // 0.1
$fn = 64;

module thing() {
  union() {
    cylinder(Base_depth, d=Base_diameter);
    if (Head_style == "sphere") {
        translate([0, 0, Sphere_offset]) {       sphere(d=50);
        };
    }
    if (Head_style == "stl") {
        translate([Head_translate_x, Head_translate_y, Head_translate_z]) {
        rotate([Head_rotate_x, Head_rotate_y, Head_rotate_z]) {
        scale([Head_scale_x, Head_scale_y, Head_scale_z]) {
            import(Head_import);
        }
    }
}
    }
  }  
}

difference() {
  thing();
  translate([0, 0, Screw_length/2]) {
      screw_hole(Screw_size, tolerance="tap", length=Screw_length);
  }
};