OpenAngle(deg)	Allowance(mm)
20	    0.702
30	    0.283
40	   -0.136
50	   -0.555
60	   -0.973
70	   -1.392
80	   -1.811
90	   -2.230
100	   -1.684
110	   -1.269
120	   -0.951
130	   -0.703
140	   -0.508
150	   -0.351
160	   -0.220