Number of teeth	80					
Pitch	20					
Pressure angle	20	0.349066				
Addendum	0.05					
Dedendum	0.06					
Pitch diameter	4.00					
Base circle dia.	3.76					
Theta p	0.02					
Theta b	0.03					
						
Angle(deg)	angle(rad)	Inv	r	Theta r	x	y

0	0	0	1.868982	1.605336	-0.06454	1.867867
5	0.087266	0.000222	1.876157	1.605113	-0.06437	1.875053
10	0.174533	0.001794	1.898417	1.603542	-0.06215	1.8974
15	0.261799	0.00615	1.938143	1.599186	-0.05502	1.937362
20	0.349066	0.014904	2	1.590431	-0.03927	1.999614
25	0.436332	0.029975	2.092375	1.57536	-0.00955	2.092354
30	0.523599	0.053751	2.230523	1.551584	0.042851	2.230111
35	0.610865	0.089342	2.444045	1.515993	0.133874	2.440375
40	0.698132	0.140968	2.79732	1.464368	0.297153	2.781492
45	0.785398	0.214602	3.459141	1.390734	0.619501	3.403215
50	0.872665	0.319089	5.050874	1.286247	1.417908	4.847769