Number

Error before modification/mm

Error after modification/mm

Maximum

Average

Maximum

Average

1

2.4376

2.2160

0.0400

0.0181

2

2.4362

2.2074

0.0799

0.0362

3

2.4377

2.1988

0.1199

0.0543

4

2.4421

2.1905

0.1599

0.0724

5

2.4597

2.1824

0.1999

0.0905