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A taper hole is inspected using a CMM, with a probe of 2 mm diameter. At a height, Z=10 mm from the bottom, 5 points are touched and a diameter of circle (not compensated for probe size) is obtained as 20 mm. Similarly, a 40 mm diameter is obtained at a height Z= 40 mm. The smaller diameter (in mm) of hole at Z = 0 is
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- 13.334
- 15.334
- 15.442
- 15.542
Correct Option: A
| tanθ = | 10 |
| = | ||||
| 3 | 10 |
x = 3.33
(d) = 20 – 2x = 20 – 2 × 3.33 = 13.334 mm
