KELIBRON Plan the measurement before touching the part
Plan the measurement before touching the part: a 80-second reenactment recorded in the KELIBRON 3D lab, with English captions. The steps below are the captions in order, and you can do the same measurement yourself in the lab.
What happens in the video
- 0:00 Plan the measurement before touching the part
- 0:05 First look: the stepped shaft has Ø20 and Ø32 sections; the large one has limits 31.95–32.05 mm.
- 0:11 Compare: the tolerance band is 0.10 mm wide; the digital caliper's MPE is 0.02 mm.
- 0:17 0.10 / 0.02 = 5, short of the ten-to-one rule: use the caliper with care, and switch to a micrometer near the limits.
- 0:23 First direction: outside jaws deep and square.
- 0:30 Close gently until both faces just touch.
- 0:38 The reading comes from the measurement: judge it against the tolerance band.
- 0:44 Lift off, then seat again.
- 0:50 Repeat: same spot, once more.
- 1:03 Two readings agree, so this size can be recorded with confidence.
- 1:09 Record both readings and both verdicts.
In the course
- Caliper fundamentals · Planning how to measure a part — Decide which feature to measure with which instrument, and how.
- Part inspection in practice · Planning the measurements — Decide for each feature what to measure it with, where and how often.
