====== SC2 lathe ======

Based on a Sieg C2 lookalike.

===== Mods =====

  * Taper spindle bearings
  * Sealed gearbox bearings
  * Metal gearbox gears
  * 4" chuck adapter
  * AXA toolpost (replace angular toolpost, can be swapped)
  * Digital scale on saddle
  * Improved saddle back protector
  * [[bearing_mounted_leadscrew|Bearing mounted leadscrew]]
  * [[leadscrew_gearbox|Massive aluminium leadscrew gearbox]]
  * [[gearplate|New gearplate]]
  * [[fine_feed|Fine feed]]
  * [[tachometer|Spindle tachometer]]


===== Comming mods =====

  * [[spindle_indexer|Spindle indexer]]
  * [[spindle_stop|Spindle stop]]
  * [[grinder|Grinder]]
  * [[crossway_milling_head|Crossway milling head]]


===== TPI thread cutting =====

Needs additionnal 55, 57, 63 and 65 teeth gears, cutting data here [[http://gears.yent.eu/spur#!milling-module1-n55--milling-module1-n57--milling-module1-n63--milling-module1-n65--5]]

With 0.25% max error :

^  pitch  ^  Z1  ^  Z2  ^  Z3  ^  Z4  ^  error  ^
|  8TPI |  65 |  35 |  57 |  50 |  0.02% / 0.71µm |
|  9TPI |  55 |  35 |  60 |  50 |  0.22% / 6.33µm |
|  10TPI |  40 |  30 |  80 |  63 |  0.01% / 0.32µm |
|  11TPI |  55 |  45 |  63 |  50 |  0.04% / 0.91µm |
|  12TPI |  55 |  35 |  45 |  50 |  0.22% / 4.75µm |
|  13TPI |  40 |  50 |  57 |  35 |  0.02% / 0.44µm |
|  14TPI |  35 |  55 |  57 |  30 |  0.04% / 0.65µm |
|  15TPI |  40 |  30 |  55 |  65 |  0.06% / 1.03µm |
|  16TPI |  40 |  30 |  50 |  63 |  0.01% / 0.20µm |
|  17TPI |  55 |  35 |  40 |  63 |  0.17% / 2.48µm |
|  18TPI |  55 |  45 |  50 |  65 |  0.06% / 0.86µm |
|  19TPI |  35 |  55 |  63 |  45 |  0.04% / 0.48µm |
|  20TPI |  40 |  30 |  40 |  63 |  0.01% / 0.16µm |
|  21TPI |  35 |  55 |  57 |  45 |  0.04% / 0.43µm |
|  22TPI |  50 |  40 |   |  65 |  0.06% / 0.70µm |
|  23TPI |  40 |  60 |  63 |  57 |  0.08% / 0.91µm |
|  24TPI |  35 |  55 |  50 |  45 |  0.21% / 2.27µm |
|  25TPI |  40 |  50 |  55 |  65 |  0.06% / 0.62µm |
|  26TPI |  40 |  50 |  65 |  80 |  0.20% / 1.93µm |
|  28TPI |  35 |  55 |  57 |  60 |  0.04% / 0.32µm |
|  29TPI |  40 |  30 |  35 |  80 |  0.10% / 0.86µm |
|  30TPI |  40 |  60 |  55 |  65 |  0.06% / 0.51µm |
|  31TPI |  50 |  40 |  35 |  80 |  0.12% / 0.96µm |
|  32TPI |  40 |  60 |  50 |  63 |  0.01% / 0.10µm |
|  33TPI |  35 |  65 |  60 |  63 |  0.06% / 0.47µm |
|  35TPI |  30 |  60 |  63 |  65 |  0.17% / 1.21µm |
|  36TPI |  35 |  65 |  55 |  63 |  0.06% / 0.43µm |
|  37TPI |  40 |  60 |  55 |  80 |  0.15% / 1.01µm |
|  38TPI |  35 |  55 |  40 |  57 |  0.21% / 1.43µm |
|  40TPI |  40 |  60 |  40 |  63 |  0.01% / 0.08µm |
|  42TPI |  30 |  40 |  35 |  65 |  0.17% / 1.01µm |
|  43TPI |  30 |  60 |  63 |  80 |  0.01% / 0.07µm |
|  44TPI |  30 |  60 |  50 |  65 |  0.06% / 0.35µm |
|  49TPI |  30 |  60 |  45 |  65 |  0.17% / 0.86µm |
|  55TPI |  30 |  60 |  40 |  65 |  0.06% / 0.28µm |
|  56TPI |  35 |  65 |  45 |  80 |  0.17% / 0.75µm |
|  58TPI |  40 |  60 |  35 |  80 |  0.10% / 0.43µm |
|  61TPI |  30 |  60 |  35 |  63 |  0.07% / 0.27µm |
|  63TPI |  30 |  60 |  35 |  65 |  0.17% / 0.67µm |
|  66TPI |  35 |  65 |  30 |  63 |  0.06% / 0.23µm |
|  71TPI |  35 |  55 |  30 |  80 |  0.06% / 0.21µm |
|  84TPI |  35 |  65 |  30 |  80 |  0.17% / 0.50µm |

==== Finder ====
<code javascript>
var gears = [30, 35, 40, 40, 45, 50, 55, 57, 60, 63, 65, 80, 80];
var errmax = 0.0025;

var tpi = {};

function rem(a, i) {
	var b = [];
	for(var j=0; j<a.length; j++) if(j != i) b.push(a[j]);
	return b;
}

for(var i1=0; i1<gears.length; i1++) {
	var z1 = gears[i1];
	var gears1 = rem(gears, i1);
	
	for(var i2=0; i2<gears.length; i2++) {
		var z2 = gears1[i2];
		var gears2 = rem(gears1, i2);
		
		var d1 = (z1 + z2) / 2;
		
		if(d1 != 35 && d1 != 45 && d1 != 50) continue;
		
		for(var i4=0; i4<gears2.length; i4++) {
			var z4 = gears2[i4];
			
			var a = (25.4 / 1.5) * (z4 / z1);
			
			var ai = Math.round(a);
			
			var err = Math.abs(a - ai) / ai;
			
			if(err > errmax) continue;
			
			if(typeof tpi[ai + 'TPI'] == 'undefined') tpi[ai + 'TPI'] = [];
			
			tpi[ai + 'TPI'].push({gears: {z1: z1, z2: z2, z4: z4}, tpi: ai, err: err});
		}
	}
}

for(var i1=0; i1<gears.length; i1++) {
	var z1 = gears[i1];
	var gears1 = rem(gears, i1);
	
	for(var i2=0; i2<gears.length; i2++) {
		var z2 = gears1[i2];
		var gears2 = rem(gears1, i2);
		
		var d1 = (z1 + z2) / 2;
		
		if(d1 != 35 && d1 != 45 && d1 != 50) continue;
		
		for(var i3=0; i3<gears2.length; i3++) {
			var z3 = gears2[i3];
			var gears3 = rem(gears2, i3);
			
			for(var i4=0; i4<gears3.length; i4++) {
				var z4 = gears3[i4];
				
				var d3 = (z3 + z4) / 2;
				var de = (z2 + 20) / 2;
				if(d3 <= de) continue;
				
				var a = (25.4 / 1.5) * (z4 / z3) * (z2 / z1);
				
				var ai = Math.round(a);
				
				var err = Math.abs(a - ai) / ai;
				
				if(err > errmax) continue;
				
				if(typeof tpi[ai + 'TPI'] == 'undefined') tpi[ai + 'TPI'] = [];
				
				tpi[ai + 'TPI'].push({gears: {z1: z1, z2: z2, z3: z3, z4: z4}, tpi: ai, err: err});
			}
		}
	}
}

var tpis = [];
for(var i in tpi) {
	tpis.push(i);
	
	tpi[i].sort(function(a, b) {
		return a.err - b.err;
	});
}

tpis.sort(function(a, b) {
	return parseInt(a.replace(/[^0-9]/g, '')) - parseInt(b.replace(/[^0-9]/g, ''));
});

var t = ['^  pitch  ^  Z1  ^  Z2  ^  Z3  ^  Z4  ^  error  ^'];
for(var i=0; i<tpis.length; i++) {
	var s = tpi[tpis[i]][0];
	var l = '|  ' + tpis[i];
	l += ' |  ' + s.gears.z1 + ' |  ' + s.gears.z2 + ' |  ' + (s.gears.z3 ? s.gears.z3 : '') + ' |  ' + s.gears.z4;
	l += ' |  ' + (100 * s.err).toFixed(2) + '% / ' + (1000 * 25.4 * s.err / s.tpi).toFixed(2) + 'µm |';
	t.push(l);
}

console.log(t.join("\n"));
</code>


===== All gear combinations =====

^  pitch  ^  Z1  ^  Z2  ^  Z3  ^  Z4  ^
|  0.303 |  35 |  65 |  30 |  80 |
|  0.328 |  30 |  60 |  35 |  80 |
|  0.358 |  35 |  55 |  30 |  80 |
|  0.375 |  30 |  60 |  40 |  80 |
|  0.385 |  35 |  65 |  30 |  63 |
|  0.404 |  30 |  60 |  35 |  65 |
|  0.417 |  30 |  60 |  35 |  63 |
|  0.422 |  30 |  60 |  45 |  80 |
|  0.425 |  35 |  65 |  30 |  57 |
|  0.438 |  40 |  60 |  35 |  80 |
|  0.441 |  35 |  55 |  30 |  65 |
|  0.450 |  40 |  50 |  30 |  80 |
|  0.454 |  35 |  65 |  45 |  80 |
|  0.455 |  35 |  55 |  30 |  63 |
|  0.460 |  45 |  55 |  30 |  80 |
|  0.461 |  30 |  60 |  35 |  57 |
|  0.462 |  30 |  60 |  40 |  65 |
|  0.469 |  30 |  60 |  50 |  80 |
|  0.476 |  30 |  60 |  40 |  63 |
|  0.477 |  30 |  60 |  35 |  55 |
|  0.492 |  30 |  40 |  35 |  80 |
|  0.500 |  40 |  60 |  40 |  80 |
|  0.502 |  35 |  55 |  30 |  57 |
|  0.505 |  35 |  65 |  50 |  80 |
|  0.513 |  35 |  65 |  40 |  63 |
|  0.516 |  30 |  60 |  55 |  80 |
|  0.519 |  30 |  60 |  45 |  65 |
|  0.525 |  30 |  60 |  35 |  50 |
|  0.526 |  30 |  60 |  40 |  57 |
|  0.534 |  30 |  60 |  57 |  80 |
|  0.536 |  30 |  60 |  45 |  63 |
|  0.537 |  35 |  55 |  45 |  80 |
|  0.538 |  35 |  65 |  40 |  60 |
|  0.545 |  30 |  60 |  40 |  55 |
|  0.554 |  40 |  50 |  30 |  65 |
|  0.555 |  35 |  65 |  55 |  80 |
|  0.556 |  40 |  60 |  35 |  63 |
|  0.563 |  30 |  40 |   |  80 |
|  0.566 |  45 |  55 |  30 |  65 |
|  0.567 |  35 |  65 |  40 |  57 |
|  0.571 |  40 |  50 |  30 |  63 |
|  0.573 |  35 |  55 |  30 |  50 |
|  0.575 |  35 |  65 |  57 |  80 |
|  0.577 |  30 |  60 |  50 |  65 |
|  0.584 |  45 |  55 |  30 |  63 |
|  0.587 |  35 |  55 |  40 |  65 |
|  0.591 |  30 |  60 |  63 |  80 |
|  0.592 |  30 |  60 |  45 |  57 |
|  0.595 |  30 |  60 |  50 |  63 |
|  0.597 |  35 |  55 |  50 |  80 |
|  0.600 |  30 |  60 |  40 |  50 |
|  0.606 |  30 |  40 |  35 |  65 |
|  0.609 |  30 |  60 |  65 |  80 |
|  0.614 |  30 |  60 |  45 |  55 |
|  0.615 |  40 |  60 |  40 |  65 |
|  0.625 |  30 |  40 |  35 |  63 |
|  0.632 |  40 |  50 |  30 |  57 |
|  0.633 |  30 |  40 |  45 |  80 |
|  0.635 |  30 |  60 |  55 |  65 |
|  0.636 |  35 |  55 |  40 |  60 |
|  0.638 |  35 |  65 |  45 |  57 |
|  0.641 |  35 |  65 |  50 |  63 |
|  0.646 |  35 |  65 |  40 |  50 |
|  0.655 |  30 |  60 |  55 |  63 |
|  0.656 |  35 |  55 |   |  80 |
|  0.658 |  30 |  60 |  50 |  57 |
|  0.661 |  35 |  55 |  45 |  65 |
|  0.667 |  30 |  60 |  40 |  45 |
|  0.670 |  35 |  55 |  40 |  57 |
|  0.673 |  35 |  65 |  50 |  60 |
|  0.675 |  30 |  60 |  45 |  50 |
|  0.679 |  30 |  60 |  57 |  63 |
|  0.680 |  35 |  55 |  57 |  80 |
|  0.682 |  30 |  60 |  50 |  55 |
|  0.688 |  40 |  60 |  55 |  80 |
|  0.691 |  30 |  40 |  35 |  57 |
|  0.692 |  30 |  40 |   |  65 |
|  0.700 |  40 |  50 |  35 |  60 |
|  0.702 |  40 |  60 |  40 |  57 |
|  0.703 |  30 |  40 |  50 |  80 |
|  0.705 |  35 |  65 |  55 |  63 |
|  0.709 |  35 |  65 |  50 |  57 |
|  0.713 |  40 |  60 |  57 |  80 |
|  0.714 |  30 |  40 |   |  63 |
|  0.716 |  30 |  40 |  35 |  55 |
|  0.724 |  30 |  60 |  55 |  57 |
|  0.727 |  30 |  60 |  63 |  65 |
|  0.731 |  35 |  65 |  57 |  63 |
|  0.734 |  35 |  55 |  50 |  65 |
|  0.736 |  45 |  55 |  30 |  50 |
|  0.737 |  40 |  50 |  35 |  57 |
|  0.738 |  40 |  50 |  40 |  65 |
|  0.740 |  35 |  65 |  55 |  60 |
|  0.750 |  30 |  40 |   |  60 |
|  0.752 |  35 |  55 |  63 |  80 |
|  0.754 |  35 |  55 |  45 |  57 |
|  0.755 |  45 |  55 |  40 |  65 |
|  0.758 |  35 |  55 |  50 |  63 |
|  0.762 |  40 |  50 |  40 |  63 |
|  0.764 |  35 |  55 |  40 |  50 |
|  0.767 |  35 |  65 |  57 |  60 |
|  0.769 |  35 |  65 |  60 |  63 |
|  0.773 |  30 |  40 |  55 |  80 |
|  0.774 |  30 |  60 |  65 |  63 |
|  0.776 |  35 |  55 |  65 |  80 |
|  0.777 |  30 |  60 |  57 |  55 |
|  0.779 |  30 |  40 |  45 |  65 |
|  0.787 |  30 |  40 |  35 |  50 |
|  0.789 |  30 |  40 |   |  57 |
|  0.794 |  40 |  60 |  50 |  63 |
|  0.795 |  35 |  55 |  50 |  60 |
|  0.800 |  40 |  50 |  30 |  45 |
|  0.802 |  30 |  40 |  57 |  80 |
|  0.804 |  30 |  40 |  45 |  63 |
|  0.808 |  35 |  55 |   |  65 |
|  0.813 |  40 |  60 |  65 |  80 |
|  0.818 |  30 |  40 |   |  55 |
|  0.820 |  50 |  40 |  35 |  80 |
|  0.825 |  30 |  60 |  55 |  50 |
|  0.829 |  30 |  60 |  63 |  57 |
|  0.831 |  40 |  50 |  45 |  65 |
|  0.833 |  35 |  55 |   |  63 |
|  0.837 |  35 |  55 |  50 |  57 |
|  0.842 |  40 |  50 |  40 |  57 |
|  0.844 |  45 |  55 |   |  80 |
|  0.846 |  40 |  60 |  55 |  65 |
|  0.848 |  35 |  55 |  40 |  45 |
|  0.850 |  35 |  65 |  60 |  57 |
|  0.855 |  30 |  60 |  57 |  50 |
|  0.857 |  40 |  50 |  45 |  63 |
|  0.859 |  30 |  60 |  63 |  55 |
|  0.861 |  45 |  55 |  40 |  57 |
|  0.864 |  35 |  55 |  57 |  63 |
|  0.865 |  30 |  40 |  50 |  65 |
|  0.873 |  40 |  50 |  40 |  55 |
|  0.874 |  45 |  55 |  57 |  80 |
|  0.875 |  35 |  55 |   |  60 |
|  0.877 |  40 |  60 |  50 |  57 |
|  0.881 |  35 |  55 |  60 |  65 |
|  0.884 |  55 |  35 |  30 |  80 |
|  0.886 |  30 |  40 |  63 |  80 |
|  0.888 |  30 |  40 |  45 |  57 |
|  0.889 |  40 |  60 |  40 |  45 |
|  0.893 |  30 |  40 |  50 |  63 |
|  0.897 |  35 |  65 |  50 |  45 |
|  0.900 |  30 |  40 |   |  50 |
|  0.905 |  40 |  60 |  57 |  63 |
|  0.907 |  35 |  55 |  57 |  60 |
|  0.909 |  35 |  55 |  60 |  63 |
|  0.914 |  30 |  40 |  65 |  80 |
|  0.917 |  30 |  60 |  55 |  45 |
|  0.920 |  30 |  40 |  45 |  55 |
|  0.921 |  35 |  55 |   |  57 |
|  0.923 |  40 |  30 |   |  65 |
|  0.925 |  35 |  55 |  63 |  65 |
|  0.933 |  40 |  50 |  35 |  45 |
|  0.938 |  50 |  40 |   |  80 |
|  0.944 |  45 |  55 |  50 |  65 |
|  0.945 |  30 |  60 |  63 |  50 |
|  0.947 |  40 |  50 |  45 |  57 |
|  0.950 |  30 |  60 |  57 |  45 |
|  0.952 |  40 |  30 |   |  63 |
|  0.955 |  35 |  65 |   |  55 |
|  0.965 |  40 |  60 |  55 |  57 |
|  0.966 |  45 |  55 |  63 |  80 |
|  0.969 |  35 |  65 |  60 |  50 |
|  0.974 |  45 |  55 |  50 |  63 |
|  0.975 |  30 |  60 |  65 |  50 |
|  0.982 |  30 |  40 |  55 |  63 |
|  0.984 |  30 |  40 |  35 |  40 |
|  0.985 |  35 |  55 |  65 |  63 |
|  0.987 |  30 |  40 |  50 |  57 |
|  0.997 |  45 |  55 |  65 |  80 |
|  1.000 |  30 |  40 |   |  45 |
|  1.002 |  35 |  55 |  63 |  60 |
|  1.005 |  35 |  55 |  60 |  57 |
|  1.010 |  35 |  65 |  50 |  40 |
|  1.013 |  30 |  40 |  45 |  50 |
|  1.015 |  40 |  50 |  55 |  65 |
|  1.018 |  30 |  40 |  57 |  63 |
|  1.019 |  55 |  45 |  35 |  63 |
|  1.023 |  30 |  40 |  50 |  55 |
|  1.026 |  35 |  65 |  80 |  63 |
|  1.031 |  55 |  35 |   |  80 |
|  1.032 |  40 |  60 |  65 |  63 |
|  1.034 |  35 |  55 |  65 |  60 |
|  1.036 |  40 |  60 |  57 |  55 |
|  1.038 |  45 |  55 |   |  65 |
|  1.042 |  50 |  40 |  35 |  63 |
|  1.045 |  65 |  35 |  30 |  80 |
|  1.048 |  40 |  50 |  55 |  63 |
|  1.050 |  35 |  55 |   |  50 |
|  1.052 |  40 |  50 |  57 |  65 |
|  1.053 |  40 |  30 |   |  57 |
|  1.055 |  35 |  55 |  63 |  57 |
|  1.061 |  35 |  55 |  50 |  45 |
|  1.067 |  40 |  50 |  40 |  45 |
|  1.069 |  30 |  40 |  57 |  60 |
|  1.071 |  45 |  55 |   |  63 |
|  1.074 |  35 |  55 |  45 |  40 |
|  1.076 |  45 |  55 |  57 |  65 |
|  1.077 |  35 |  65 |  60 |  45 |
|  1.083 |  30 |  60 |  65 |  45 |
|  1.086 |  30 |  40 |  55 |  57 |
|  1.088 |  35 |  55 |  57 |  50 |
|  1.089 |  35 |  55 |  65 |  57 |
|  1.090 |  30 |  40 |  63 |  65 |
|  1.091 |  40 |  30 |   |  55 |
|  1.094 |  50 |  40 |  35 |  60 |
|  1.100 |  40 |  50 |  55 |  60 |
|  1.105 |  40 |  60 |  63 |  57 |
|  1.108 |  40 |  50 |  60 |  65 |
|  1.110 |  45 |  55 |  57 |  63 |
|  1.111 |  35 |  65 |  55 |  40 |
|  1.122 |  55 |  35 |  30 |  63 |
|  1.125 |  30 |  40 |   |  40 |
|  1.126 |  55 |  45 |  35 |  57 |
|  1.128 |  55 |  45 |  40 |  65 |
|  1.131 |  35 |  65 |  63 |  45 |
|  1.133 |  45 |  55 |  60 |  65 |
|  1.134 |  35 |  65 |  80 |  57 |
|  1.140 |  40 |  50 |  57 |  60 |
|  1.143 |  40 |  50 |  60 |  63 |
|  1.145 |  35 |  55 |  60 |  50 |
|  1.146 |  55 |  45 |  50 |  80 |
|  1.151 |  35 |  65 |  57 |  40 |
|  1.154 |  50 |  40 |   |  65 |
|  1.158 |  40 |  50 |  55 |  57 |
|  1.161 |  30 |  40 |  65 |  63 |
|  1.163 |  40 |  50 |  63 |  65 |
|  1.164 |  55 |  45 |  40 |  63 |
|  1.166 |  30 |  40 |  57 |  55 |
|  1.167 |  35 |  55 |   |  45 |
|  1.169 |  45 |  55 |  60 |  63 |
|  1.175 |  35 |  55 |  80 |  65 |
|  1.179 |  30 |  60 |  55 |  35 |
|  1.181 |  30 |  40 |  63 |  60 |
|  1.182 |  40 |  60 |  65 |  55 |
|  1.184 |  45 |  55 |   |  57 |
|  1.190 |  50 |  40 |   |  63 |
|  1.193 |  35 |  55 |  50 |  40 |
|  1.200 |  40 |  30 |   |  50 |
|  1.203 |  35 |  55 |  63 |  50 |
|  1.209 |  35 |  55 |  57 |  45 |
|  1.212 |  35 |  55 |  80 |  63 |
|  1.219 |  65 |  35 |   |  80 |
|  1.221 |  30 |  60 |  57 |  35 |
|  1.222 |  40 |  60 |  55 |  45 |
|  1.227 |  30 |  40 |  60 |  55 |
|  1.228 |  40 |  30 |  35 |  57 |
|  1.231 |  40 |  30 |  40 |  65 |
|  1.238 |  30 |  40 |  55 |  50 |
|  1.241 |  35 |  55 |  65 |  50 |
|  1.243 |  30 |  40 |  63 |  57 |
|  1.244 |  40 |  50 |  57 |  55 |
|  1.250 |  50 |  40 |   |  60 |
|  1.260 |  40 |  50 |  63 |  60 |
|  1.263 |  40 |  50 |  60 |  57 |
|  1.266 |  30 |  40 |  45 |  40 |
|  1.267 |  40 |  60 |  57 |  45 |
|  1.269 |  55 |  35 |   |  65 |
|  1.270 |  40 |  30 |  40 |  63 |
|  1.272 |  35 |  65 |  63 |  40 |
|  1.273 |  35 |  55 |  60 |  45 |
|  1.282 |  30 |  40 |  57 |  50 |
|  1.283 |  30 |  40 |  65 |  57 |
|  1.286 |  30 |  40 |   |  35 |
|  1.287 |  55 |  45 |  40 |  57 |
|  1.289 |  30 |  40 |  63 |  55 |
|  1.292 |  35 |  65 |  80 |  50 |
|  1.298 |  50 |  40 |  45 |  65 |
|  1.300 |  40 |  50 |  65 |  60 |
|  1.306 |  55 |  45 |  57 |  80 |
|  1.309 |  40 |  50 |  60 |  55 |
|  1.310 |  55 |  35 |   |  63 |
|  1.313 |  35 |  55 |   |  40 |
|  1.316 |  50 |  40 |   |  57 |
|  1.326 |  40 |  50 |  63 |  57 |
|  1.327 |  65 |  35 |  30 |  63 |
|  1.330 |  30 |  40 |  65 |  55 |
|  1.333 |  40 |  30 |   |  45 |
|  1.336 |  35 |  55 |  63 |  45 |
|  1.339 |  50 |  40 |  45 |  63 |
|  1.340 |  35 |  55 |  80 |  57 |
|  1.350 |  45 |  55 |   |  50 |
|  1.356 |  45 |  55 |  63 |  57 |
|  1.360 |  35 |  55 |  57 |  40 |
|  1.364 |  50 |  40 |   |  55 |
|  1.368 |  40 |  50 |  65 |  57 |
|  1.371 |  40 |  50 |  40 |  35 |
|  1.375 |  55 |  35 |   |  60 |
|  1.379 |  35 |  55 |  65 |  45 |
|  1.382 |  60 |  40 |  35 |  57 |
|  1.385 |  60 |  30 |   |  65 |
|  1.393 |  30 |  60 |  65 |  35 |
|  1.399 |  45 |  55 |  57 |  50 |
|  1.400 |  40 |  30 |  35 |  50 |
|  1.404 |  40 |  30 |  40 |  57 |
|  1.406 |  30 |  40 |  50 |  40 |
|  1.410 |  55 |  45 |  50 |  65 |
|  1.414 |  55 |  35 |  30 |  50 |
|  1.417 |  30 |  40 |  63 |  50 |
|  1.418 |  40 |  50 |  65 |  55 |
|  1.425 |  30 |  40 |  57 |  45 |
|  1.429 |  60 |  30 |   |  63 |
|  1.432 |  35 |  55 |  60 |  40 |
|  1.436 |  35 |  65 |  80 |  45 |
|  1.444 |  40 |  60 |  65 |  45 |
|  1.446 |  30 |  40 |  45 |  35 |
|  1.447 |  55 |  35 |   |  57 |
|  1.451 |  55 |  35 |  40 |  65 |
|  1.455 |  40 |  30 |  40 |  55 |
|  1.458 |  50 |  40 |  35 |  45 |
|  1.463 |  30 |  40 |  65 |  50 |
|  1.466 |  65 |  35 |  30 |  57 |
|  1.467 |  40 |  50 |  55 |  45 |
|  1.473 |  45 |  55 |  60 |  50 |
|  1.477 |  40 |  50 |  80 |  65 |
|  1.480 |  50 |  40 |  45 |  57 |
|  1.490 |  55 |  45 |  65 |  80 |
|  1.497 |  55 |  35 |  40 |  63 |
|  1.500 |  40 |  30 |   |  40 |
|  1.503 |  35 |  55 |  63 |  40 |
|  1.510 |  45 |  55 |  80 |  65 |
|  1.519 |  65 |  35 |  30 |  55 |
|  1.520 |  40 |  50 |  57 |  45 |
|  1.523 |  50 |  40 |  65 |  80 |
|  1.524 |  40 |  50 |  80 |  63 |
|  1.527 |  35 |  55 |  80 |  50 |
|  1.528 |  55 |  45 |  50 |  60 |
|  1.534 |  45 |  55 |  50 |  40 |
|  1.535 |  35 |  65 |  57 |  30 |
|  1.538 |  40 |  30 |  50 |  65 |
|  1.543 |  40 |  50 |  45 |  35 |
|  1.546 |  45 |  55 |  63 |  50 |
|  1.547 |  30 |  40 |  55 |  40 |
|  1.548 |  65 |  35 |   |  63 |
|  1.551 |  35 |  55 |  65 |  40 |
|  1.556 |  40 |  30 |  35 |  45 |
|  1.558 |  45 |  55 |  80 |  63 |
|  1.567 |  65 |  35 |  45 |  80 |
|  1.571 |  40 |  60 |  55 |  35 |
|  1.575 |  30 |  40 |  63 |  45 |
|  1.579 |  60 |  30 |   |  57 |
|  1.587 |  40 |  30 |  50 |  63 |
|  1.591 |  35 |  55 |  50 |  30 |
|  1.595 |  45 |  55 |  65 |  50 |
|  1.600 |  40 |  30 |  40 |  50 |
|  1.603 |  30 |  40 |  57 |  40 |
|  1.604 |  55 |  45 |  35 |  40 |
|  1.607 |  30 |  40 |  50 |  35 |
|  1.608 |  55 |  45 |  50 |  57 |
|  1.615 |  35 |  65 |  60 |  30 |
|  1.625 |  65 |  35 |   |  60 |
|  1.629 |  40 |  60 |  57 |  35 |
|  1.632 |  55 |  35 |  45 |  65 |
|  1.636 |  60 |  30 |   |  55 |
|  1.637 |  50 |  40 |  55 |  63 |
|  1.641 |  50 |  40 |  35 |  40 |
|  1.644 |  50 |  40 |  57 |  65 |
|  1.650 |  55 |  35 |   |  50 |
|  1.654 |  55 |  35 |  40 |  57 |
|  1.659 |  55 |  45 |  57 |  63 |
|  1.667 |  50 |  40 |   |  45 |
|  1.671 |  65 |  35 |  30 |  50 |
|  1.679 |  55 |  35 |  57 |  80 |
|  1.680 |  40 |  50 |  63 |  45 |
|  1.684 |  40 |  50 |  80 |  57 |
|  1.688 |  45 |  55 |   |  40 |
|  1.692 |  40 |  30 |  55 |  65 |
|  1.696 |  35 |  65 |  63 |  30 |
|  1.697 |  35 |  55 |  80 |  45 |
|  1.710 |  40 |  50 |  57 |  40 |
|  1.711 |  65 |  35 |   |  57 |
|  1.714 |  40 |  30 |   |  35 |
|  1.719 |  50 |  40 |  55 |  60 |
|  1.722 |  45 |  55 |  80 |  57 |
|  1.731 |  50 |  40 |  60 |  65 |
|  1.733 |  40 |  50 |  65 |  45 |
|  1.741 |  65 |  35 |  50 |  80 |
|  1.742 |  55 |  45 |  57 |  60 |
|  1.745 |  40 |  50 |  80 |  55 |
|  1.746 |  40 |  30 |  55 |  63 |
|  1.749 |  45 |  55 |  57 |  40 |
|  1.750 |  35 |  55 |   |  30 |
|  1.753 |  45 |  55 |  50 |  35 |
|  1.754 |  40 |  30 |  50 |  57 |
|  1.768 |  30 |  40 |  55 |  35 |
|  1.769 |  65 |  35 |  40 |  63 |
|  1.772 |  30 |  40 |  63 |  40 |
|  1.773 |  65 |  35 |   |  55 |
|  1.776 |  60 |  40 |  45 |  57 |
|  1.777 |  55 |  45 |  63 |  65 |
|  1.778 |  40 |  30 |  40 |  45 |
|  1.781 |  50 |  40 |  57 |  60 |
|  1.786 |  50 |  40 |  60 |  63 |
|  1.800 |  60 |  30 |   |  50 |
|  1.809 |  50 |  40 |  55 |  57 |
|  1.810 |  40 |  30 |  57 |  63 |
|  1.813 |  55 |  35 |  50 |  65 |
|  1.814 |  35 |  55 |  57 |  30 |
|  1.817 |  50 |  40 |  63 |  65 |
|  1.818 |  40 |  30 |  50 |  55 |
|  1.828 |  30 |  40 |  65 |  40 |
|  1.832 |  30 |  40 |  57 |  35 |
|  1.833 |  55 |  35 |   |  45 |
|  1.841 |  45 |  55 |  60 |  40 |
|  1.842 |  60 |  30 |  35 |  57 |
|  1.846 |  40 |  30 |  60 |  65 |
|  1.856 |  55 |  35 |  63 |  80 |
|  1.857 |  40 |  60 |  65 |  35 |
|  1.861 |  55 |  35 |  45 |  57 |
|  1.871 |  55 |  35 |  50 |  63 |
|  1.875 |  50 |  40 |   |  40 |
|  1.886 |  40 |  50 |  55 |  35 |
|  1.890 |  40 |  50 |  63 |  40 |
|  1.892 |  55 |  45 |  65 |  63 |
|  1.900 |  40 |  30 |  57 |  60 |
|  1.904 |  60 |  40 |  55 |  65 |
|  1.905 |  40 |  30 |  60 |  63 |
|  1.909 |  35 |  55 |  60 |  30 |
|  1.915 |  55 |  35 |  65 |  80 |
|  1.925 |  55 |  45 |  63 |  60 |
|  1.929 |  45 |  55 |   |  35 |
|  1.930 |  40 |  30 |  55 |  57 |
|  1.933 |  45 |  55 |  63 |  40 |
|  1.935 |  50 |  40 |  65 |  63 |
|  1.938 |  40 |  30 |  63 |  65 |
|  1.943 |  50 |  40 |  57 |  55 |
|  1.950 |  65 |  35 |   |  50 |
|  1.954 |  40 |  50 |  57 |  35 |
|  1.955 |  65 |  35 |  40 |  57 |
|  1.964 |  45 |  55 |  80 |  50 |
|  1.969 |  50 |  40 |  63 |  60 |
|  1.973 |  60 |  40 |  57 |  65 |
|  1.974 |  50 |  40 |  60 |  57 |
|  1.985 |  65 |  35 |  57 |  80 |
|  1.986 |  55 |  45 |  65 |  60 |
|  1.990 |  65 |  35 |  45 |  63 |
|  1.994 |  45 |  55 |  65 |  40 |
|  1.999 |  45 |  55 |  57 |  35 |
|  2.000 |  40 |  50 |   |  30 |
|  2.005 |  35 |  55 |  63 |  30 |
|  2.025 |  30 |  40 |  63 |  35 |
|  2.026 |  55 |  45 |  63 |  57 |
|  2.031 |  50 |  40 |  65 |  60 |
|  2.036 |  60 |  40 |  57 |  63 |
|  2.045 |  45 |  55 |  50 |  30 |
|  2.057 |  40 |  50 |  60 |  35 |
|  2.063 |  55 |  35 |   |  40 |
|  2.067 |  55 |  35 |  57 |  65 |
|  2.068 |  35 |  55 |  65 |  30 |
|  2.072 |  50 |  40 |  63 |  57 |
|  2.073 |  40 |  30 |  57 |  55 |
|  2.077 |  60 |  30 |  45 |  65 |
|  2.089 |  30 |  40 |  65 |  35 |
|  2.090 |  55 |  45 |  57 |  50 |
|  2.091 |  55 |  45 |  65 |  57 |
|  2.095 |  55 |  35 |  40 |  45 |
|  2.100 |  40 |  30 |  63 |  60 |
|  2.104 |  45 |  55 |  60 |  35 |
|  2.105 |  40 |  30 |  60 |  57 |
|  2.109 |  50 |  40 |  45 |  40 |
|  2.121 |  55 |  35 |  45 |  50 |
|  2.133 |  40 |  50 |  80 |  45 |
|  2.138 |  50 |  40 |  65 |  57 |
|  2.143 |  50 |  40 |   |  35 |
|  2.148 |  50 |  40 |  63 |  55 |
|  2.154 |  35 |  65 |  80 |  30 |
|  2.160 |  40 |  50 |  63 |  35 |
|  2.167 |  65 |  35 |   |  45 |
|  2.171 |  60 |  40 |  55 |  57 |
|  2.176 |  55 |  35 |  60 |  65 |
|  2.181 |  60 |  40 |  63 |  65 |
|  2.182 |  40 |  30 |  60 |  55 |
|  2.188 |  50 |  40 |  35 |  30 |
|  2.194 |  65 |  35 |  63 |  80 |
|  2.199 |  65 |  35 |  45 |  57 |
|  2.200 |  40 |  30 |  55 |  50 |
|  2.209 |  45 |  55 |  63 |  35 |
|  2.211 |  40 |  30 |  63 |  57 |
|  2.216 |  50 |  40 |  65 |  55 |
|  2.222 |  40 |  30 |  50 |  45 |
|  2.229 |  40 |  50 |  65 |  35 |
|  2.239 |  55 |  35 |  57 |  60 |
|  2.245 |  55 |  35 |  60 |  63 |
|  2.250 |  45 |  55 |   |  30 |
|  2.256 |  55 |  45 |  80 |  65 |
|  2.279 |  45 |  55 |  65 |  35 |
|  2.280 |  40 |  30 |  57 |  50 |
|  2.281 |  40 |  30 |  65 |  57 |
|  2.285 |  55 |  35 |  63 |  65 |
|  2.286 |  40 |  30 |  40 |  35 |
|  2.291 |  40 |  30 |  63 |  55 |
|  2.292 |  50 |  40 |  55 |  45 |
|  2.308 |  50 |  40 |  80 |  65 |
|  2.310 |  55 |  45 |  63 |  50 |
|  2.321 |  60 |  40 |  65 |  63 |
|  2.328 |  55 |  45 |  80 |  63 |
|  2.332 |  45 |  55 |  57 |  30 |
|  2.333 |  60 |  30 |  35 |  45 |
|  2.357 |  55 |  45 |   |  35 |
|  2.362 |  60 |  30 |  63 |  80 |
|  2.364 |  40 |  30 |  65 |  55 |
|  2.368 |  60 |  30 |  45 |  57 |
|  2.375 |  50 |  40 |  57 |  45 |
|  2.381 |  50 |  40 |  80 |  63 |
|  2.383 |  55 |  45 |  65 |  50 |
|  2.400 |  40 |  30 |  60 |  50 |
|  2.411 |  50 |  40 |  45 |  35 |
|  2.432 |  55 |  35 |  65 |  63 |
|  2.438 |  65 |  35 |   |  40 |
|  2.444 |  40 |  30 |  55 |  45 |
|  2.455 |  45 |  55 |  60 |  30 |
|  2.462 |  40 |  30 |  80 |  65 |
|  2.475 |  55 |  35 |  63 |  60 |
|  2.476 |  65 |  35 |  40 |  45 |
|  2.481 |  55 |  35 |  60 |  57 |
|  2.487 |  60 |  40 |  63 |  57 |
|  2.500 |  50 |  40 |   |  30 |
|  2.507 |  65 |  35 |  45 |  50 |
|  2.520 |  40 |  30 |  63 |  50 |
|  2.531 |  60 |  40 |  45 |  40 |
|  2.532 |  65 |  35 |  50 |  55 |
|  2.533 |  40 |  30 |  57 |  45 |
|  2.538 |  60 |  30 |  55 |  65 |
|  2.540 |  40 |  30 |  80 |  63 |
|  2.545 |  35 |  55 |  80 |  30 |
|  2.554 |  55 |  35 |  65 |  60 |
|  2.565 |  60 |  40 |  57 |  50 |
|  2.566 |  60 |  40 |  65 |  57 |
|  2.571 |  60 |  30 |   |  35 |
|  2.573 |  55 |  45 |  80 |  57 |
|  2.577 |  45 |  55 |  63 |  30 |
|  2.578 |  50 |  40 |  55 |  40 |
|  2.600 |  40 |  30 |  65 |  50 |
|  2.605 |  55 |  35 |  63 |  57 |
|  2.613 |  55 |  45 |  57 |  40 |
|  2.619 |  55 |  35 |  50 |  45 |
|  2.625 |  50 |  40 |  63 |  45 |
|  2.631 |  60 |  30 |  57 |  65 |
|  2.632 |  50 |  40 |  80 |  57 |
|  2.646 |  65 |  35 |  57 |  60 |
|  2.652 |  55 |  35 |  45 |  40 |
|  2.653 |  65 |  35 |  60 |  63 |
|  2.659 |  45 |  55 |  65 |  30 |
|  2.667 |  40 |  30 |  60 |  45 |
|  2.672 |  50 |  40 |  57 |  40 |
|  2.687 |  55 |  35 |  57 |  50 |
|  2.688 |  55 |  35 |  65 |  57 |
|  2.700 |  60 |  30 |  45 |  50 |
|  2.708 |  50 |  40 |  65 |  45 |
|  2.714 |  60 |  30 |  57 |  63 |
|  2.727 |  50 |  40 |  80 |  55 |
|  2.743 |  40 |  50 |  80 |  35 |
|  2.750 |  55 |  35 |   |  30 |
|  2.769 |  60 |  40 |  80 |  65 |
|  2.786 |  65 |  35 |  40 |  40 |
|  2.800 |  40 |  30 |  63 |  45 |
|  2.805 |  45 |  55 |  80 |  35 |
|  2.807 |  40 |  30 |  80 |  57 |
|  2.813 |  50 |  40 |  45 |  30 |
|  2.829 |  55 |  35 |  60 |  50 |
|  2.835 |  60 |  40 |  63 |  50 |
|  2.850 |  40 |  30 |  57 |  40 |
|  2.857 |  40 |  30 |  50 |  35 |
|  2.887 |  65 |  35 |  57 |  55 |
|  2.888 |  55 |  45 |  63 |  40 |
|  2.889 |  40 |  30 |  65 |  45 |
|  2.893 |  60 |  40 |  45 |  35 |
|  2.895 |  60 |  30 |  55 |  57 |
|  2.901 |  55 |  35 |  80 |  65 |
|  2.908 |  60 |  30 |  63 |  65 |
|  2.909 |  40 |  30 |  80 |  55 |
|  2.925 |  60 |  40 |  65 |  50 |
|  2.932 |  65 |  35 |  60 |  57 |
|  2.933 |  55 |  45 |  80 |  50 |
|  2.946 |  50 |  40 |  55 |  35 |
|  2.953 |  50 |  40 |  63 |  40 |
|  2.970 |  55 |  35 |  63 |  50 |
|  2.979 |  55 |  45 |  65 |  40 |
|  2.986 |  55 |  35 |  57 |  45 |
|  2.993 |  55 |  35 |  80 |  63 |
|  3.000 |  60 |  40 |   |  30 |
|  3.039 |  65 |  35 |  60 |  55 |
|  3.047 |  50 |  40 |  65 |  40 |
|  3.054 |  50 |  40 |  57 |  35 |
|  3.056 |  55 |  45 |  50 |  30 |
|  3.064 |  55 |  35 |  65 |  50 |
|  3.079 |  65 |  35 |  63 |  57 |
|  3.094 |  60 |  40 |  55 |  40 |
|  3.095 |  60 |  30 |  65 |  63 |
|  3.109 |  60 |  30 |  57 |  55 |
|  3.134 |  65 |  35 |  45 |  40 |
|  3.143 |  40 |  30 |  55 |  35 |
|  3.150 |  40 |  30 |  63 |  40 |
|  3.158 |  60 |  40 |  80 |  57 |
|  3.176 |  65 |  35 |  57 |  50 |
|  3.191 |  65 |  35 |  63 |  55 |
|  3.200 |  40 |  30 |  80 |  50 |
|  3.206 |  60 |  40 |  57 |  40 |
|  3.214 |  50 |  40 |  60 |  35 |
|  3.250 |  65 |  35 |   |  30 |
|  3.257 |  40 |  30 |  57 |  35 |
|  3.273 |  45 |  55 |  80 |  30 |
|  3.300 |  55 |  35 |  63 |  45 |
|  3.308 |  55 |  35 |  80 |  57 |
|  3.316 |  60 |  30 |  63 |  57 |
|  3.333 |  50 |  40 |  80 |  45 |
|  3.343 |  65 |  35 |  60 |  50 |
|  3.359 |  55 |  35 |  57 |  40 |
|  3.375 |  50 |  40 |  63 |  35 |
|  3.405 |  55 |  35 |  65 |  45 |
|  3.420 |  60 |  30 |  57 |  50 |
|  3.421 |  60 |  30 |  65 |  57 |
|  3.429 |  40 |  30 |  60 |  35 |
|  3.436 |  60 |  30 |  63 |  55 |
|  3.438 |  50 |  40 |  55 |  30 |
|  3.482 |  50 |  40 |  65 |  35 |
|  3.483 |  55 |  45 |  57 |  30 |
|  3.510 |  65 |  35 |  63 |  50 |
|  3.529 |  65 |  35 |  57 |  45 |
|  3.536 |  55 |  35 |  45 |  30 |
|  3.537 |  65 |  35 |  80 |  63 |
|  3.544 |  60 |  40 |  63 |  40 |
|  3.545 |  60 |  30 |  65 |  55 |
|  3.556 |  40 |  30 |  80 |  45 |
|  3.562 |  50 |  40 |  57 |  30 |
|  3.600 |  40 |  30 |  63 |  35 |
|  3.656 |  60 |  40 |  65 |  40 |
|  3.664 |  60 |  40 |  57 |  35 |
|  3.667 |  55 |  45 |  60 |  30 |
|  3.692 |  60 |  30 |  80 |  65 |
|  3.712 |  55 |  35 |  63 |  40 |
|  3.714 |  40 |  30 |  65 |  35 |
|  3.750 |  50 |  40 |  60 |  30 |
|  3.771 |  55 |  35 |  80 |  50 |
|  3.780 |  60 |  30 |  63 |  50 |
|  3.800 |  60 |  30 |  57 |  45 |
|  3.810 |  60 |  30 |  80 |  63 |
|  3.830 |  55 |  35 |  65 |  40 |
|  3.850 |  55 |  45 |  63 |  30 |
|  3.857 |  60 |  30 |  45 |  35 |
|  3.900 |  60 |  30 |  65 |  50 |
|  3.910 |  65 |  35 |  80 |  57 |
|  3.929 |  55 |  35 |  50 |  30 |
|  3.938 |  50 |  40 |  63 |  30 |
|  3.970 |  65 |  35 |  57 |  40 |
|  3.972 |  55 |  45 |  65 |  30 |
|  4.000 |  40 |  30 |  80 |  40 |
|  4.050 |  60 |  40 |  63 |  35 |
|  4.052 |  65 |  35 |  80 |  55 |
|  4.063 |  50 |  40 |  65 |  30 |
|  4.125 |  60 |  30 |  55 |  40 |
|  4.179 |  60 |  40 |  65 |  35 |
|  4.190 |  55 |  35 |  80 |  45 |
|  4.200 |  60 |  30 |  63 |  45 |
|  4.211 |  60 |  30 |  80 |  57 |
|  4.275 |  60 |  30 |  57 |  40 |
|  4.286 |  50 |  40 |  80 |  35 |
|  4.333 |  60 |  30 |  65 |  45 |
|  4.364 |  60 |  30 |  80 |  55 |
|  4.388 |  65 |  35 |  63 |  40 |
|  4.457 |  65 |  35 |  80 |  50 |
|  4.479 |  55 |  35 |  57 |  30 |
|  4.500 |  60 |  40 |  80 |  40 |
|  4.571 |  40 |  30 |  80 |  35 |
|  4.643 |  65 |  35 |  50 |  30 |
|  4.714 |  55 |  35 |  60 |  30 |
|  4.725 |  60 |  30 |  63 |  40 |
|  4.800 |  60 |  30 |  80 |  50 |
|  4.875 |  60 |  30 |  65 |  40 |
|  4.886 |  60 |  30 |  57 |  35 |
|  4.889 |  55 |  45 |  80 |  30 |
|  4.950 |  55 |  35 |  63 |  30 |
|  4.952 |  65 |  35 |  80 |  45 |
|  5.000 |  50 |  40 |  80 |  30 |
|  5.107 |  55 |  35 |  65 |  30 |
|  5.143 |  60 |  40 |  80 |  35 |
|  5.293 |  65 |  35 |  57 |  30 |
|  5.333 |  60 |  30 |  80 |  45 |
|  5.400 |  60 |  30 |  63 |  35 |
|  5.571 |  60 |  30 |  65 |  35 |
|  5.850 |  65 |  35 |  63 |  30 |
|  6.000 |  60 |  30 |  80 |  40 |
|  6.286 |  55 |  35 |  80 |  30 |
|  6.857 |  60 |  30 |  80 |  35 |
|  7.429 |  65 |  35 |  80 |  30 |

==== Finder ====

<code javascript>
var gears = [30, 35, 40, 40, 45, 50, 55, 57, 60, 63, 65, 80, 80];
 
var pas = {};
 
function rem(a, i) {
    var b = [];
    for(var j=0; j<a.length; j++) if(j != i) b.push(a[j]);
    return b;
}
 
for(var i1=0; i1<gears.length; i1++) {
    var z1 = gears[i1];
    var gears1 = rem(gears, i1);
 
    for(var i2=0; i2<gears.length; i2++) {
        var z2 = gears1[i2];
        var gears2 = rem(gears1, i2);
 
        var d1 = (z1 + z2) / 2;
 
        if(d1 != 35 && d1 != 45 && d1 != 50) continue;
 
        for(var i4=0; i4<gears2.length; i4++) {
            var z4 = gears2[i4];
 
            var r = 1.5 * z1 / z4;
            
            r = r.toFixed(3);
            if(typeof pas[r + 'mm'] != 'undefined') continue;
 
            pas[r + 'mm'] = {r: r, gears: {z1: z1, z2: z2, z4: z4}};
        }
    }
}
 
for(var i1=0; i1<gears.length; i1++) {
    var z1 = gears[i1];
    var gears1 = rem(gears, i1);
 
    for(var i2=0; i2<gears.length; i2++) {
        var z2 = gears1[i2];
        var gears2 = rem(gears1, i2);
 
        var d1 = (z1 + z2) / 2;
 
        if(d1 != 35 && d1 != 45 && d1 != 50) continue;
 
        for(var i3=0; i3<gears2.length; i3++) {
            var z3 = gears2[i3];
            var gears3 = rem(gears2, i3);
 
            for(var i4=0; i4<gears3.length; i4++) {
                var z4 = gears3[i4];
 
                var d3 = (z3 + z4) / 2;
                var de = (z2 + 20) / 2;
                if(d3 <= de) continue;
 
                var r = 1.5 * (z3 / z4) * (z1 / z2);
                
                r = r.toFixed(3);
                if(typeof pas[r + 'mm'] != 'undefined') continue;
                
                pas[r + 'mm'] = {r: r, gears: {z1: z1, z2: z2, z3: z3, z4: z4}};
            }
        }
    }
}

pas = Object.values(pas);
pas.sort(function(a, b) {
    return a.r - b.r;
});
 
var t = ['^  pitch  ^  Z1  ^  Z2  ^  Z3  ^  Z4  ^'];
for(var i=0; i<pas.length; i++) {
    var l = '|  ' + pas[i].r;
    l += ' |  ' + pas[i].gears.z1 + ' |  ' + pas[i].gears.z2 + ' |  ' + (pas[i].gears.z3 ? pas[i].gears.z3 : '') + ' |  ' + pas[i].gears.z4;
    l += ' |';
    t.push(l);
}
 
console.log(t.join("\n"));
</code>