use <inserts.scad>
use <threads.scad>


$fa = ($preview) ? 12 : 1;
$fs = ($preview) ?  2 : 1;
$incolor = false;

module ball(insert=true, top = true, bottom = true) {
	bd=65;
	difference() {
		intersection() {
			sphere(d=bd);
			for (i = [-1, 1])
				if ((i<0 && bottom) || (i>0 && top))
					translate([0,0,i*bd/2])
						cube([bd, bd, bd],center=true);
		}
		if (insert) for (iz = [-bd/2, bd/2]) {
			rot = (iz < 0) ? 180 : 0;
			//translate([0,0,bd/2])thread_insertM3($die=true);
			translate([0,0,iz]) 
				rotate([0,rot,0]) thread_insertM3($die=true);
		}
	}
}

module post() {
	translate([0,0,0])cylinder(d=6, h=77, center=true);
}

module underball() {
	translate([0,0,0]) intersection() { 
		cylinder(d=65, h=5, center=true);
		translate([0,0,-48]) sphere(d=100, $fa=3);
	}

	translate([0,0,5]) 
		cylinder(d=55, h=10, center=true);
	translate([0,0,9]) 
		rotate_extrude(angle=360) 
			translate([10+15/2,0,0])
				circle(d=20);
}

module ring(d,id) {
	rotate_extrude(angle=360) translate([(d+id)/2,0,0])circle(d=d);
}

//ball();

//underball();
BallD = 65;
module top(
	bd,
	c_base = $incolor ? "yellow" : undef,
	c_seal = $incolor ? "red"    : undef,
	c_ins  = $incolod ? "silver" : undef
) {
	color(c_base) cylinder(d=95, h=4);
	translate([0,0,4]) {
		difference() {
			color(c_base) sphere(d=bd);
			translate([0,0,-70/2])cylinder(d=95, h=70/2);
		}
		cylinder(d=10, id=bd/2);
		color(c_seal) ring(d=5, id=bd+5);
		cylinder(d=8, h=bd/2+5);
	}
	cylinder(d=100, h=1+8);
	translate([0,0,1+8-8]) 
		metric_thread(diameter=95,length=8.01, internal=true);

	cylinder(d=92, h=1+6);
}

module middle_top(
	bd, 
	c_base = $incolor ? "yellow" : undef,
	c_seal = $incolor ? "red"    : undef,
	c_ins  = $incolod ? "silver" : undef
) {
	difference() {
		color(c_base) cylinder(d=95, h=4);
		translate([0,0,4]) 
			color(c_seal)
				ring(d=5, id=bd+5);
	}
	translate([0,0,4]) {
		difference() {
			color(c_base) sphere(d=bd);
			translate([0,0,-70/2])cylinder(d=95, h=70/2);
		}
		cylinder(d=10, id=bd/2);
		cylinder(d=8, h=bd/2+4);
	}
	difference() {
		cylinder(d=100, h=1+8);
		translate([0,0,1+8-8])
			metric_thread(diameter=95, length=8.01, internal=true);

		cylinder(d=92, h=1+6);
	}
	
}

module middle_bottom(
	bd,
	c_base = $incolor ? "yellow" : undef,
	c_seal = $incolor ? "red"    : undef,
	c_ins  = $incolod ? "silver" : undef

) {
	difference() {
		color(c_base) cylinder(d=95, h=4);
		translate([0,0,4]) color(c_seal) ring(d=5, id=bd+5);
	}
	translate([0,0,4]) {
		underball();
		cylinder(d=10, id=bd/2);
		cylinder(d=8, h=20);
	}
	difference() {
		union() {
			cylinder(d=100, h=1+8);
		}
		translate([0,0,1+8-8])metric_thread(diameter=95,length=8.01, internal=true);

		cylinder(d=92, h=1+6);
	}
	
}
// 20 + bd/2+4
module middle(bd, bh=20) {
	tot = bd/2 + bh;
	th = 2*8;
	midl=tot-th;
	difference() {
		union() {
			translate([0,0,8])cylinder(d=100, h=midl);
			metric_thread(diameter=95,length=8.01);
			translate([0,0,8+midl]) metric_thread(diameter=95,length=8.01);

		}

		translate([0,0,-.01]) cylinder(d=92, h=tot+1);
	}
}

module plate_full() {
	translate([100,100]) top(bd=BallD);
	middle(bd=BallD);
	translate([0,100]) middle_bottom(bd = BallD);
	translate([100,0]) middle_top(bd = BallD);
}

//plate_full();

ball(bottom=false);